{"id":106015,"date":"2026-09-16T13:51:30","date_gmt":"2026-09-16T05:51:30","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/106015.html"},"modified":"2026-09-16T13:51:30","modified_gmt":"2026-09-16T05:51:30","slug":"python%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/106015.html","title":{"rendered":"Python\uff08\u4e00\uff09"},"content":{"rendered":"<h3>\u7b2c\u4e00\u7ae0 Python\u7684\u4ecb\u7ecd<\/h3>\n<h4>1. Python\u662f\u4ec0\u4e48<\/h4>\n<p>\u200b Python\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u89e3\u91ca\u578b\u3001\u9ad8\u7ea7\u548c\u901a\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\u3002Python\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8303\u578b&#xff0c;\u5305\u62ec\u7ed3\u6784\u5316\u3001\u8fc7\u7a0b\u5f0f\u3001\u53cd\u5c04\u5f0f\u3001\u9762\u5411\u5bf9\u8c61\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\u3002\u5b83\u62e5\u6709\u52a8\u6001\u7c7b\u578b\u7cfb\u7edf\u548c\u5783\u573e\u56de\u6536\u529f\u80fd&#xff0c;\u80fd\u591f\u81ea\u52a8\u7ba1\u7406\u5185\u5b58\u4f7f\u7528&#xff0c;\u5e76\u4e14\u5176\u672c\u8eab\u62e5\u6709\u4e00\u4e2a\u5de8\u5927\u800c\u5e7f\u6cdb\u7684\u6807\u51c6\u5e93\u3002\u5b83\u7684\u8bed\u8a00\u7ed3\u6784\u4ee5\u53ca\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u6cd5&#xff0c;\u65e8\u5728\u5e2e\u52a9\u7a0b\u5e8f\u5458\u4e3a\u5c0f\u578b\u7684\u548c\u5927\u578b\u7684\u9879\u76ee\u7f16\u5199\u903b\u8f91\u6e05\u6670\u7684\u4ee3\u7801\u3002<\/p>\n<p>\u200b Python\u7684\u8bbe\u8ba1\u54f2\u5b66\u5f3a\u8c03\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u7b80\u6d01\u7684\u8bed\u6cd5&#xff0c;\u5c24\u5176\u662f\u4f7f\u7528\u7a7a\u683c\u7f29\u8fdb\u6765\u5212\u5206\u4ee3\u7801\u5757\u3002\u76f8\u6bd4\u4e8eC\u8bed\u8a00\u6216\u8005Java&#xff0c;Python\u53ef\u4ee5\u8ba9\u5f00\u53d1\u8005\u7528\u66f4\u5c11\u7684\u4ee3\u7801\u8868\u8fbe\u60f3\u6cd5\u3002Python\u89e3\u91ca\u5668\u672c\u8eab\u51e0\u4e4e\u53ef\u4ee5\u5728\u6240\u6709\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e2d\u8fd0\u884c&#xff0c;Python\u662f\u4e16\u754c\u4e0a\u6700\u53d7\u6b22\u8fce\u7684\u7f16\u7a0b\u8bed\u8a00\u4e4b\u4e00\u3002<\/p>\n<h4>2. Python\u4f18\u70b9<\/h4>\n<ul>\n<li>\n<p>\u6613\u4e8e\u5b66\u4e60&#xff1a;Python\u6709\u76f8\u5bf9\u8f83\u5c11\u7684\u5173\u952e\u5b57&#xff0c;\u7ed3\u6784\u7b80\u5355&#xff0c;\u548c\u4e00\u4e2a\u660e\u786e\u5b9a\u4e49\u7684\u8bed\u6cd5&#xff0c;\u5b66\u4e60\u8d77\u6765\u66f4\u52a0\u7b80\u5355\u3002<\/p>\n<\/li>\n<li>\n<p>\u5e7f\u6cdb\u7684\u6807\u51c6\u5e93&#xff1a;Python\u6700\u5927\u7684\u4f18\u52bf\u4e4b\u4e00\u5c31\u662f\u6709\u7740\u4e30\u5bcc\u7684\u5e93\u3002Python\u62e5\u6709\u4e00\u4e2a\u5f3a\u5927\u7684\u6807\u51c6\u5e93&#xff0c;Python\u8bed\u8a00\u7684\u6838\u5fc3\u53ea\u5305\u542b\u4e00\u4e9b\u5e38\u89c1\u7c7b\u578b\u548c\u51fd\u6570&#xff0c;\u800cPython\u6807\u51c6\u5e93\u63d0\u4f9b\u4e86\u7cfb\u7edf\u7ba1\u7406\u3001\u7f51\u7edc\u901a\u4fe1\u3001\u6587\u672c\u5904\u7406\u3001\u6587\u4ef6\u7cfb\u7edf\u7b49\u989d\u5916\u7684\u529f\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u5927\u91cf\u7684\u7b2c\u4e09\u65b9\u6a21\u5757&#xff1a;Python\u793e\u533a\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u7b2c\u4e09\u65b9\u6a21\u5757&#xff0c;\u4f7f\u7528\u65b9\u5f0f\u4e0e\u6807\u51c6\u5e93\u7c7b\u4f3c\u3002\u5b83\u4eec\u7684\u529f\u80fd\u8986\u76d6Web\u5f00\u53d1\u3001\u6570\u636e\u5206\u6790\u3001\u4eba\u5de5\u667a\u80fd \u3001\u81ea\u52a8\u5316\u7b49\u591a\u4e2a\u9886\u57df\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>3. Python\u7684\u7f3a\u70b9<\/h4>\n<ul>\n<li>\u8fd0\u884c\u901f\u5ea6\u6162&#xff1a;\u548cC\u7a0b\u5e8f\u76f8\u6bd4\u975e\u5e38\u6162&#xff0c;\u56e0\u4e3aPython\u662f\u89e3\u91ca\u578b\u8bed\u8a00&#xff0c;\u4ee3\u7801\u5728\u6267\u884c\u65f6\u4f1a\u4e00\u884c\u4e00\u884c\u5730\u7ffb\u8bd1\u6210CPU\u80fd\u7406\u89e3\u7684\u673a\u5668\u7801&#xff0c;\u8fd9\u4e2a\u7ffb\u8bd1\u8fc7\u7a0b\u975e\u5e38\u8017\u65f6<\/li>\n<\/ul>\n<h4>4. Python\u89e3\u91ca\u5668<\/h4>\n<p>\u5f53\u6211\u4eec\u7f16\u5199Python\u4ee3\u7801\u65f6&#xff0c;\u6211\u4eec\u5f97\u5230\u7684\u662f\u4e00\u4e2a\u5305\u542bPython\u4ee3\u7801\u7684\u4ee5.py\u4e3a\u6269\u5c55\u540d\u7684\u6587\u672c\u6587\u4ef6\u3002\u8981\u8fd0\u884c\u4ee3\u7801&#xff0c;\u5c31\u9700\u8981Python\u89e3\u91ca\u5668\u53bb\u6267\u884c.py\u6587\u4ef6\u3002\u4e8b\u5b9e\u4e0a&#xff0c;\u5b58\u5728\u591a\u79cdPython\u89e3\u91ca\u5668&#xff0c;\u4f46\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u8fd8\u662fCPython\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u4ecePython\u5b98\u65b9\u7f51\u7ad9\u4e0b\u8f7d\u5e76\u5b89\u88c5\u597dPython 3.x\u540e&#xff0c;\u6211\u4eec\u5c31\u76f4\u63a5\u83b7\u5f97\u4e86\u4e00\u4e2a\u5b98\u65b9\u7248\u672c\u7684\u89e3\u91ca\u5668&#xff1a;CPython\u3002\u8fd9\u4e2a\u89e3\u91ca\u5668\u662f\u7528C\u8bed\u8a00\u5f00\u53d1\u7684&#xff0c;\u6240\u4ee5\u53ebCPython\u3002\u5728\u547d\u4ee4\u884c\u4e0b\u8fd0\u884cpython\u5c31\u662f\u542f\u52a8CPython\u89e3\u91ca\u5668\u3002<\/p>\n<h4>5.Python\u4ee3\u7801\u89c4\u8303<\/h4>\n<h5>1. \u7f29\u8fdb<\/h5>\n<p>\u5728 Python \u4e2d&#xff0c;\u4ee3\u7801\u5757\u7684\u7ed3\u675f\u4e0d\u50cf\u5176\u4ed6\u4e00\u4e9b\u7f16\u7a0b\u8bed\u8a00&#xff08;\u5982 C\u3001Java \u7b49&#xff09;\u4f7f\u7528\u5927\u62ec\u53f7 {} \u6765\u660e\u786e\u754c\u5b9a&#xff0c;\u800c\u662f\u901a\u8fc7\u7f29\u8fdb\u6765\u8868\u793a\u3002\u5efa\u8bae\u6bcf\u7ea7\u7f29\u8fdb\u90fd\u4f7f\u7528\u56db\u4e2a\u7a7a\u683c&#xff0c;\u8fd9\u65e2\u53ef\u63d0\u9ad8\u53ef\u8bfb\u6027&#xff0c;\u53c8\u7559\u4e0b\u4e86\u8db3\u591f\u7684\u591a\u7ea7\u7f29\u8fdb\u7a7a\u95f4\u3002<\/p>\n<p><span class=\"token comment\">#\u6b63\u786e\u4f7f\u7528&#xff1a;\u2705<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">specification<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    x<span class=\"token operator\">&#061;<\/span><span class=\"token number\">10<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> x <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Positive&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;This is inside the if block&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;This is outside the if block&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u56de\u5230\u5916\u5c42<\/span><\/p>\n<p><span class=\"token comment\"># \u9519\u8bef\u4f7f\u7528 \u274c   <\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">specification<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    x<span class=\"token operator\">&#061;<\/span><span class=\"token number\">10<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> x <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n     <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;This is inside the if block&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n     <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;This is outside the if block&#034;<\/span><span class=\"token punctuation\">)<\/span>  <\/p>\n<h5>2. \u5206\u53f7<\/h5>\n<p>\u4e0d\u8981\u5728\u884c\u5c3e\u52a0\u5206\u53f7.<\/p>\n<p><span class=\"token comment\">#\u6b63\u786e\u4f7f\u7528&#xff1a;\u2705<\/span><br \/>\nstr1<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;abc&#034;<\/span><br \/>\n<span class=\"token comment\"># \u9519\u8bef\u4f7f\u7528 \u274c   <\/span><br \/>\nstr2<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;bcd&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h5>3. \u4e0d\u4ee5\u7a7a\u683c\u7ed3\u675f\u4e00\u884c\u4ee3\u7801<\/h5>\n<p>\u5728\u4efb\u4f55\u5730\u65b9\u90fd\u4e0d\u8981\u4ee5\u7a7a\u683c\u7ed3\u675f\u672c\u884c\u4ee3\u7801&#xff0c; \u56e0\u4e3a\u884c\u672b\u7684\u7a7a\u683c\u4e0d\u53ef\u89c1&#xff0c; \u8fd9\u53ef\u80fd\u4f1a\u51fa\u95ee\u9898\u3002<\/p>\n<p><span class=\"token comment\"># \u9519\u8bef\u5199\u6cd51&#xff1a;\u884c\u672b\u6709\u7a7a\u683c&#xff08;\u4e0d\u53ef\u89c1&#xff09;<\/span><br \/>\nmessage <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello, &#034;<\/span> \\\\<br \/>\n          <span class=\"token string\">&#034;World!&#034;<\/span>  <span class=\"token comment\"># \u8fd9\u91cc &#096;\\\\&#096; \u540e\u9762\u6709\u4e00\u4e2a\u7a7a\u683c&#xff08;\u770b\u4e0d\u89c1\u4f46\u5b58\u5728&#xff09;<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u62a5\u9519&#xff1a;SyntaxError: unexpected character after line continuation character<\/span><\/p>\n<p><span class=\"token comment\"># \u9519\u8bef\u5199\u6cd52&#xff1a;\u884c\u672b\u6709\u7a7a\u683c<\/span><br \/>\nstr1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello, &#034;<\/span>    <span class=\"token comment\"># \u884c\u672b\u6709\u7a7a\u683c<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;World!&#034;<\/span>     <span class=\"token comment\"># \u884c\u672b\u6709\u7a7a\u683c<\/span><br \/>\ncombined <span class=\"token operator\">&#061;<\/span> str1 <span class=\"token operator\">&#043;<\/span> str2<\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>combined<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa &#034;Hello, World!&#034;&#xff08;\u4f46 str1 \u548c str2 \u5b9e\u9645\u5305\u542b\u591a\u4f59\u7a7a\u683c&#xff09;<\/span><\/p>\n<h5>4. \u6ce8\u91ca<\/h5>\n<h6>4.1 \u5355\u884c\u6ce8\u91ca<\/h6>\n<p>Python\u4e2d # \u540e\u7684\u4e00\u884c\u5185\u7684\u5185\u5bb9\u4f1a\u88ab\u89c6\u4e3a\u6ce8\u91ca,\u4e3a\u4e86\u4fdd\u6301\u6ce8\u91ca\u7684\u6574\u6d01&#xff0c;Python\u5b98\u65b9\u5efa\u8bae\u5728#\u548c\u6ce8\u91ca\u7684\u5185\u5bb9\u4e4b\u95f4\u52a0\u4e00\u4e2a\u7a7a\u683c\u3002<\/p>\n<p><span class=\"token comment\"># print(&#034;hello world&#034;)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;hello world&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6253\u5370hello world<\/span><\/p>\n<h6>4.2 \u591a\u884c\u6ce8\u91ca&#xff08;\u5757\u6ce8\u91ca&#xff09;<\/h6>\n<p>Python\u4e2d\u4f7f\u7528\u4e09\u4e2a\u5f15\u53f7\u5f00\u59cb&#xff0c;\u4e09\u4e2a\u5f15\u53f7\u7ed3\u675f&#xff08;\u5355\u5f15\u53f7\u6216\u8005\u53cc\u5f15\u53f7\u90fd\u53ef\u4ee5&#xff09;&#xff0c;\u4e3a\u591a\u884c\u6ce8\u91ca<\/p>\n<p>\u591a\u884c\u6ce8\u91ca\u5728\u8bf4\u660e\u6587\u5b57\u9700\u8981\u6362\u884c\u65f6\u4f7f\u7528&#xff0c;\u4e0d\u80fd\u5d4c\u5957<\/p>\n<p><span class=\"token comment\">#\u6b63\u786e\u4f7f\u7528&#xff1a;\u2705<\/span><br \/>\n<span class=\"token triple-quoted-string string\">&#039;&#039;&#039;<br \/>\n\u8fd9\u4e5f\u662f\u591a\u884c\u6ce8\u91ca&#xff0c;<br \/>\n\u4f7f\u7528\u53cc\u5f15\u53f7\u6548\u679c\u76f8\u540c\u3002<br \/>\n\u4f46 Python \u5b98\u65b9\u63a8\u8350\u7528\u53cc\u5f15\u53f7\u5199 docstring\u3002<br \/>\n&#039;&#039;&#039;<\/span><\/p>\n<p><span class=\"token triple-quoted-string string\">&#034;&#034;&#034;<br \/>\n\u8fd9\u4e5f\u662f\u591a\u884c\u6ce8\u91ca&#xff0c;<br \/>\n\u4f7f\u7528\u53cc\u5f15\u53f7\u6548\u679c\u76f8\u540c\u3002<br \/>\n\u4f46 Python \u5b98\u65b9\u63a8\u8350\u7528\u53cc\u5f15\u53f7\u5199 docstring\u3002<br \/>\n&#034;&#034;&#034;<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Hello, World!&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8fd9\u884c\u4ee3\u7801\u4ecd\u7136\u4f1a\u6267\u884c<\/span><\/p>\n<p><span class=\"token comment\"># \u9519\u8bef\u4f7f\u7528 \u274c <\/span><br \/>\n<span class=\"token triple-quoted-string string\">&#039;&#039;&#039;<br \/>\n\u5916\u5c42\u6ce8\u91ca<br \/>\n&#039;&#039;&#039;<\/span> \u5185\u5c42\u6ce8\u91ca <span class=\"token triple-quoted-string string\">&#039;&#039;&#039;<br \/>\n&#039;&#039;&#039;<\/span><br \/>\n<span class=\"token comment\"># \u51fd\u6570\/\u7c7b\u7684\u6587\u6863\u5b57\u7b26\u4e32&#xff08;docstring&#xff09;<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">calculate_sum<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">,<\/span> b<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;<br \/>\n    \u8ba1\u7b97\u4e24\u4e2a\u6570\u7684\u548c&#xff08;\u8fd9\u662f docstring&#xff0c;\u5c5e\u4e8e\u51fd\u6570\u7684\u4e00\u90e8\u5206&#xff09;<br \/>\n    \u53c2\u6570:<br \/>\n        a (int): \u7b2c\u4e00\u4e2a\u6570<br \/>\n        b (int): \u7b2c\u4e8c\u4e2a\u6570<br \/>\n    \u8fd4\u56de:<br \/>\n        int: \u4e24\u6570\u4e4b\u548c<br \/>\n    &#034;&#034;&#034;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> a <span class=\"token operator\">&#043;<\/span> b<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u51fd\u6570\u7684 docstring<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>calculate_sum<span class=\"token punctuation\">.<\/span>__doc__<span class=\"token punctuation\">)<\/span><\/p>\n<hr \/>\n<h3>\u7b2c\u4e8c\u7ae0 Python\u73af\u5883\u5b89\u88c5<\/h3>\n<h4>1.1 Anaconda3\u7684\u5b89\u88c5<\/h4>\n<p>Anaconda\u662f\u4e00\u4e2a\u5f00\u6e90\u7684Python\u53d1\u884c\u7248\u672c&#xff0c;\u5176\u5305\u542b\u4e86conda\u3001Python\u7b49180\u591a\u4e2a\u79d1\u5b66\u5305\u53ca\u5176\u4f9d\u8d56\u9879\u3002\u5176\u4e2d&#xff0c;conda\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5305\u3001\u73af\u5883\u7ba1\u7406\u5668&#xff0c;\u53ef\u4ee5\u7528\u4e8e\u5728\u540c\u4e00\u4e2a\u673a\u5668\u4e0a\u5b89\u88c5\u4e0d\u540c\u7248\u672c\u7684\u8f6f\u4ef6\u5305\u53ca\u5176\u4f9d\u8d56&#xff0c;\u5e76\u80fd\u591f\u5728\u4e0d\u540c\u7684\u73af\u5883\u4e4b\u95f4\u5207\u6362 Anaconda\u5bf9\u4e8e\u65b0\u624b\u5341\u5206\u53cb\u597d&#xff0c;\u901a\u8fc7\u5b89\u88c5Anaconda\u53ef\u4ee5\u7701\u53bb\u5f88\u591a\u5b89\u88c5Python\u4e3b\u7a0b\u5e8f\u7684\u9ebb\u70e6\u3002<\/p>\n<p>\u200b https:\/\/www.anaconda.com\/download<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055121-6aaa2e59c5a9e.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>brew <span class=\"token function\">install<\/span> &#8211;cask anaconda<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055124-6aaa2e5c82b46.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h5>\u7f16\u8f91\u73af\u5883\u53d8\u91cf<\/h5>\n<p>Homebrew \u9ed8\u8ba4\u4f1a\u628a Anaconda \u5b89\u88c5\u5728 \/usr\/local\/anaconda3&#xff08;Intel Mac&#xff09;\u6216 \/opt\/homebrew\/anaconda3&#xff08;M\u7cfb\u5217 Mac&#xff09;\u4e0b\u3002\u9700\u8981\u5c06\u5b83\u52a0\u5165 PATH&#xff1a;<\/p>\n<p><span class=\"token builtin class-name\">echo<\/span> <span class=\"token string\">&#039;export PATH&#061;&#034;\/opt\/homebrew\/anaconda3\/bin:$PATH&#034;&#039;<\/span> <span class=\"token operator\">&gt;&gt;<\/span> ~\/.zshrc<\/p>\n<p><span class=\"token builtin class-name\">source<\/span> ~\/.zshrc<\/p>\n<p><span class=\"token comment\"># \u9a8c\u8bc1\u5b89\u88c5<\/span><br \/>\nconda &#8211;version<\/p>\n<p>\u82e5\u8f93\u51fa\u7248\u672c\u53f7&#xff0c;\u5982 conda 25.11.0&#xff0c;\u5219\u8bf4\u660e\u5b89\u88c5\u6210\u529f\u3002<\/p>\n<h5>\u521b\u5efa\u4e0e\u7ba1\u7406\u865a\u62df\u73af\u5883<\/h5>\n<p><span class=\"token comment\"># \u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u865a\u62df\u73af\u5883 \u6bd4\u5982\u521b\u5efa\u540d\u4e3a XXX \u7684\u73af\u5883\u5e76\u4f7f\u7528 Python 3.10&#xff1a;<\/span><br \/>\nconda create -n YOUR_ENV_NAME <span class=\"token assign-left variable\">python<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.10<\/span><br \/>\nconda create -n pyliming <span class=\"token assign-left variable\">python<\/span><span class=\"token operator\">&#061;<\/span><span class=\"token number\">3.10<\/span><\/p>\n<h5>\u6fc0\u6d3b\u521b\u5efa\u597d\u7684\u73af\u5883<\/h5>\n<p>conda activate YOUR_ENV_NAME<br \/>\nconda activate pyliming<\/p>\n<p><span class=\"token comment\"># \u9000\u51fa\u73af\u5883<\/span><br \/>\nconda deactivate<\/p>\n<p><span class=\"token comment\"># \u67e5\u770b\u6240\u6709\u73af\u5883<\/span><br \/>\nconda <span class=\"token function\">env<\/span> list<\/p>\n<p><span class=\"token comment\"># \u5220\u9664\u73af\u5883<\/span><br \/>\nconda remove -n mlenv &#8211;all<\/p>\n<h4>1.2 Pycharm\u7684\u5b89\u88c5<\/h4>\n<p>\u200b Pycharm\u53ef\u4ee5\u4ece\u5b98\u65b9\u4e0b\u8f7d\u4e13\u4e1a\u7248&#xff0c;\u7136\u540e\u901a\u8fc7\u4efb\u610f\u65b9\u5f0f\u53bb\u6fc0\u6d3b\u3002\u5b89\u88c5\u6210\u529f\u540e&#xff0c;\u8981\u53bb\u914d\u7f6ePython\u8fd0\u884c\u73af\u5883\u3002<\/p>\n<p>\u200b File -&gt; Setting -&gt; Pythoin YOUR_PROJECT<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055125-6aaa2e5dec16a.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055126-6aaa2e5edd9c6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h3>\u7b2c\u4e09\u7ae0 Python\u7684\u57fa\u672c\u8bed\u6cd5<\/h3>\n<h4>1.\u53d8\u91cf<\/h4>\n<h5>1.1 \u53d8\u91cf\u7684\u5b9a\u4e49<\/h5>\n<p>\u200b \u53d8\u91cf\u662f\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6&#xff0c;\u80fd\u50a8\u5b58\u8ba1\u7b97\u7ed3\u679c\u6216\u80fd\u8868\u793a\u503c\u7684\u62bd\u8c61\u6982\u5ff5\u3002<\/p>\n<h5>1.2 \u53d8\u91cf\u7684\u5b9a\u4e49\u683c\u5f0f<\/h5>\n<p>\u5728Python\u4e2d&#xff0c;\u5b9a\u4e49\u53d8\u91cf\u7684\u57fa\u672c\u683c\u5f0f\u662f&#xff1a;<\/p>\n<p>\u53d8\u91cf\u540d\u79f0 <span class=\"token operator\">&#061;<\/span> \u53d8\u91cf\u7684\u503c<\/p>\n<p>\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>\u53d8\u91cf\u503c \u6307\u7684\u662f\u8d4b\u503c\u8bed\u53e5\u4e2d\u7b49\u53f7\u53f3\u4fa7\u7684\u5185\u5bb9&#xff0c;\u4ee3\u8868\u5b9e\u9645\u5b58\u50a8\u7684\u6570\u636e&#xff0c;\u6bd4\u5982\u4e00\u4e2a\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u3001\u5217\u8868\u7b49\u3002\u6bcf\u4e2a\u53d8\u91cf\u5185\u90e8\u90fd\u4f1a\u6709\u4e00\u4e2a\u5b58\u50a8\u7684\u5185\u5bb9&#xff0c;\u79f0\u4e3a\u53d8\u91cf\u503c\u3002<\/li>\n<li>\u8d4b\u503c \u7b49\u53f7&#xff08;&#061;&#xff09;\u8868\u793a\u8d4b\u503c\u64cd\u4f5c&#xff0c;\u5b83\u7684\u4f5c\u7528\u662f\u628a\u53f3\u8fb9\u7684\u503c\u8d4b\u7ed9\u5de6\u8fb9\u7684\u53d8\u91cf\u3002\u5373&#xff1a;\u5148\u8ba1\u7b97\u7b49\u53f7\u53f3\u8fb9\u7684\u503c&#xff0c;\u518d\u628a\u8fd9\u4e2a\u503c\u7ed1\u5b9a\u5230\u5de6\u8fb9\u7684\u53d8\u91cf\u540d\u4e0a\u3002<\/li>\n<li>\u53d8\u91cf\u540d \u6307\u7684\u662f\u7b49\u53f7\u5de6\u4fa7\u7684\u540d\u79f0&#xff0c;\u662f\u5bf9\u5b58\u50a8\u6570\u636e\u7684\u4e00\u79cd\u6807\u8bc6\u7b26\u3002\u53d8\u91cf\u540d\u4ee3\u8868\u53d8\u91cf\u672c\u8eab&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u8fd9\u4e2a\u540d\u5b57\u6765\u8bbf\u95ee\u5bf9\u5e94\u7684\u53d8\u91cf\u503c\u3002<\/li>\n<\/ul>\n<h5>1.3 \u53d8\u91cf\u7684\u521b\u5efa<\/h5>\n<p>\u53d8\u91cf\u521b\u5efa\u65b9\u5f0f&#xff1a;\u53d8\u91cf\u540d &#061; \u53d8\u91cf\u503c<\/p>\n<p>Python \u53d8\u91cf\u65e0\u9700\u9884\u5148\u6307\u5b9a\u7c7b\u578b\u6216\u663e\u5f0f\u58f0\u660e\u5b58\u5728&#xff0c;\u76f4\u63a5\u8d4b\u503c\u5373\u53ef\u81ea\u52a8\u521b\u5efa\u5e76\u4f7f\u7528\u3002\u6bcf\u4e2a\u53d8\u91cf\u5728\u4f7f\u7528\u524d\u90fd\u5fc5\u987b\u8d4b\u503c&#xff0c;\u53d8\u91cf\u8d4b\u503c\u4ee5\u540e\u8be5\u53d8\u91cf\u624d\u4f1a\u88ab\u521b\u5efa\u3002<\/p>\n<p><span class=\"token comment\"># \u7b80\u5355\u53d8\u91cf\u7684\u521b\u5efa&#xff1a;<\/span><br \/>\nvar1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span>  <span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf&#xff0c;\u53d8\u91cf\u540d\u4e3avar1&#xff0c;\u53d8\u91cf\u503c\u4e3a2<\/span><\/p>\n<p>var2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span>  <span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf&#xff0c;\u53d8\u91cf\u540d\u4e3avar2&#xff0c;\u53d8\u91cf\u503c\u4e3a3<\/span><\/p>\n<p>result <span class=\"token operator\">&#061;<\/span> var1 <span class=\"token operator\">&#043;<\/span> var2  <span class=\"token comment\"># \u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf&#xff0c;\u53d8\u91cf\u540d\u4e3aresult&#xff0c;\u53d8\u91cf\u503c\u4e3avar1\u548cvar2\u76f8\u52a0\u7684\u7ed3\u679c<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6253\u5370result\u53d8\u91cf\u7684\u503c<\/span><\/p>\n<p>name <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5f20\u4e09&#034;<\/span><br \/>\nage <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">18<\/span><br \/>\nweight <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1000.3<\/span><\/p>\n<p><span class=\"token comment\"># \u591a\u4e2a\u53d8\u91cf\u7684\u521b\u5efa<\/span><br \/>\nvar1 <span class=\"token operator\">&#061;<\/span> var2 <span class=\"token operator\">&#061;<\/span> var3 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span>  <span class=\"token comment\"># \u591a\u4e2a\u53d8\u91cf\u7684\u503c\u76f8\u540c<\/span><br \/>\nvar4<span class=\"token punctuation\">,<\/span> var5<span class=\"token punctuation\">,<\/span> var6 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30<\/span>  <span class=\"token comment\"># \u591a\u4e2a\u53d8\u91cf\u7684\u503c\u4e0d\u540c<\/span><\/p>\n<p>\u53d8\u91cf\u7684\u7279\u70b9&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u52a8\u6001\u7c7b\u578b<\/p>\n<p>\u53d8\u91cf\u7684\u7c7b\u578b\u7531\u8d4b\u503c\u7684\u503c\u51b3\u5b9a&#xff0c;\u4e14\u53ef\u968f\u65f6\u6539\u53d8<\/p>\n<p> a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span>      <span class=\"token comment\"># a \u662f\u6574\u6570<\/span><br \/>\na <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello&#034;<\/span> <span class=\"token comment\"># a \u53d8\u6210\u5b57\u7b26\u4e32<\/span>\n <\/li>\n<li>\n<p>\u8d4b\u503c\u5373\u521b\u5efa<\/p>\n<p>\u672a\u8d4b\u503c\u7684\u53d8\u91cf\u4e0d\u5b58\u5728&#xff0c;\u76f4\u63a5\u4f7f\u7528\u4f1a\u62a5 NameError<\/p>\n<p> <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u62a5\u9519&#xff1a;NameError: name &#039;x&#039; is not defined<\/span>\n <\/li>\n<li>\n<p>\u53d8\u91cf\u662f\u5bf9\u8c61\u7684\u5f15\u7528<\/p>\n<p>Python \u53d8\u91cf\u672c\u8d28\u662f\u5bf9\u8c61\u7684\u5f15\u7528&#xff08;\u6307\u9488&#xff09;&#xff0c;\u800c\u975e\u5b58\u50a8\u6570\u636e\u7684\u5bb9\u5668&#xff1a;<\/p>\n<p> a <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> a       <span class=\"token comment\"># b \u548c a \u5f15\u7528\u540c\u4e00\u4e2a\u5217\u8868<\/span><br \/>\nb<span class=\"token punctuation\">.<\/span>append<span class=\"token punctuation\">(<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">)<\/span>    <span class=\"token comment\"># \u8f93\u51fa [1, 2, 3, 4]<\/span>\n <\/li>\n<\/ul>\n<h5>1.4 \u53d8\u91cf\u7684\u4fee\u6539<\/h5>\n<p>\u5728\u7a0b\u5e8f\u4e2d\u53ef\u968f\u65f6\u4fee\u6539\u53d8\u91cf\u7684\u503c&#xff0c;\u800cPython\u5c06\u59cb\u7ec8\u8bb0\u5f55\u53d8\u91cf\u7684\u6700\u65b0\u503c\u3002<\/p>\n<p>message <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><\/p>\n<p>message <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>message<span class=\"token punctuation\">)<\/span><\/p>\n<h5>1.5 \u5e38\u91cf<\/h5>\n<p>\u5728\u7a0b\u5e8f\u4e2d\u5b9a\u4e49\u540e\u5c31\u4e0d\u518d\u4fee\u6539\u7684\u503c\u4e3a\u5e38\u91cf&#xff0c;Python\u4e2d\u6ca1\u6709\u5185\u7f6e\u7684\u5e38\u91cf\u7c7b\u578b\u3002\u4e00\u822c\u7ea6\u5b9a\u4f7f\u7528\u5168\u5927\u5199\u53d8\u91cf\u540d\u6765\u8868\u793a\u5e38\u91cf<\/p>\n<p>PI <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.1415926<\/span><br \/>\nE <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2.718282<\/span><\/p>\n<h4>2. \u6570\u636e\u7c7b\u578b<\/h4>\n<h5>2.1 \u6570\u636e\u7c7b\u578b\u7684\u6982\u5ff5<\/h5>\n<p>\u5728Python\u4e2d&#xff0c;\u6bcf\u4e00\u4efd\u6570\u636e\u90fd\u6709\u4e00\u4e2a\u786e\u5b9a\u7684\u6570\u636e\u7c7b\u578b&#xff08;Data Type&#xff09;\u3002 \u6570\u636e\u7c7b\u578b\u51b3\u5b9a\u4e86&#xff1a;<\/p>\n<ul>\n<li>\u6570\u636e\u7684\u8868\u73b0\u5f62\u5f0f(\u4e66\u5199\u3001\u5b58\u50a8)<\/li>\n<li>\u6570\u636e\u53ef\u4ee5\u6267\u884c\u54ea\u4e9b\u64cd\u4f5c<\/li>\n<li>\u7a0b\u5e8f\u5728\u8fd0\u884c\u65f6\u5982\u4f55\u5904\u7406\u5b83<\/li>\n<\/ul>\n<p>Python\u662f\u4e00\u95e8\u52a8\u6001\u7c7b\u578b\u8bed\u8a00&#xff0c;\u610f\u5473\u7740\u53d8\u91cf\u5728\u8d4b\u503c\u65f6&#xff0c;\u4e0d\u9700\u8981\u63d0\u524d\u58f0\u660e\u6570\u636e\u7c7b\u578b&#xff0c;\u89e3\u91ca\u5668\u5728\u8fd0\u884c\u65f6\u4f9d\u7136\u4e25\u683c\u4f9d\u8d56\u7c7b\u578b\u89c4\u5219&#xff0c;\u4f1a\u6839\u636e\u8d4b\u7684\u503c\u81ea\u52a8\u63a8\u65ad\u51fa\u7c7b\u578b\u3002<\/p>\n<h5>2.2 \u5e38\u89c1\u6570\u636e\u7c7b\u578b\u79cd\u7c7b<\/h5>\n<p>Python3\u4e2d\u5e38\u89c1\u7684\u6570\u636e\u7c7b\u578b\u5206\u7c7b\u5982\u4e0b&#xff0c;\u4e3b\u8981\u7c7b\u578b\u6709\u516d\u79cd&#xff1a;<\/p>\n<p>\u57fa\u672c\u6570\u636e\u7c7b\u578b<\/p>\n<p>\u6570\u503c<\/p>\n<ul>\n<li>\u6574\u6570&#xff08;int&#xff09;\u3001\u6d6e\u70b9\u6570&#xff08;float&#xff09;\u3001\u590d\u6570&#xff08;complex&#xff09;\u3001\u5e03\u5c14&#xff08;bool&#xff09;<\/li>\n<\/ul>\n<p>\u5b57\u7b26\u4e32&#xff08;str&#xff09;<\/p>\n<p>\u5bb9\u5668\u6570\u636e\u7c7b\u578b<\/p>\n<ul>\n<li>\n<p>\u5217\u8868&#xff08;list&#xff09;<\/p>\n<ul>\n<li>[1,2,3]<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5143\u7ec4&#xff08;tuple&#xff09;<\/p>\n<ul>\n<li>(10,11,12)<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u96c6\u5408&#xff08;set&#xff09;<\/p>\n<ul>\n<li>{1,3,5}<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5b57\u5178&#xff08;dist&#xff09;<\/p>\n<ul>\n<li>{\u201cname\u201d:\u201czs\u201d,\u201cage\u201d:\u201c12\u201d}<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u7279\u6b8a\u6570\u636e\u7c7b\u578b<\/p>\n<ul>\n<li>None&#xff1a;\u8868\u793a\u7a7a\u503c\u6216\u7f3a\u5931\u503c&#xff0c;\u53ea\u6709\u4e00\u4e2a\u503c None\u3002\u5e38\u7528\u4e8e\u51fd\u6570\u6ca1\u6709\u8fd4\u56de\u503c\u65f6&#xff0c;\u6216\u8005\u8868\u793a\u53d8\u91cf\u6ca1\u6709\u88ab\u8d4b\u503c\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055127-6aaa2e5fc9329.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u200b \u4e0a\u56fe\u7684int\u3001float\u3001complex\u3001bool\u90fd\u5c5e\u4e8eNumber&#xff08;\u6570\u503c&#xff09;\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<h4>3. \u6570\u503c\u7c7b\u578b&#xff08;number&#xff09;<\/h4>\n<h5>3.1 int\u6574\u5f62<\/h5>\n<p>\u6ce8\u610f&#xff1a;Python\u53ef\u4ee5\u5904\u7406\u4efb\u610f\u5927\u5c0f\u7684\u6574\u6570&#xff0c;\u5305\u62ec\u8d1f\u6574\u6570\u3002<\/p>\n<p>\u5982 10\u3001-7(\u8d1f\u6574\u6570)<\/p>\n<p>num1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nnum2 <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">7<\/span><\/p>\n<p>\u5982 1_000_000_000_000_000 &#xff08;\u5f88\u5927\u7684\u6574\u6570&#xff09;<\/p>\n<p>num1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1_000_000_000_000_000<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># 1000000000000000<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;<\/p>\n<ul>\n<li>\u4e66\u5199\u5f88\u5927\u7684\u6570\u65f6&#xff0c;\u53ef\u4f7f\u7528\u4e0b\u5212\u7ebf\u5c06\u5176\u4e2d\u7684\u6570\u5b57\u5206\u7ec4&#xff0c;\u4f7f\u5176\u66f4\u6e05\u6670\u6613\u8bfb<\/li>\n<li>\u5b58\u50a8\u8fd9\u79cd\u6570\u65f6&#xff0c;Python\u4f1a\u5ffd\u7565\u5176\u4e2d\u7684\u4e0b\u5212\u7ebf<\/li>\n<\/ul>\n<h5>3.2 float\u6d6e\u70b9\u578b<\/h5>\n<p>Python\u5c06\u6240\u6709\u5e26\u5c0f\u6570\u70b9\u7684\u6570\u79f0\u4e3a\u6d6e\u70b9\u6570<\/p>\n<p>num1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.1<\/span><br \/>\nnum2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0.2<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1<span class=\"token operator\">&#043;<\/span>num2<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token number\">0.30000000000000004<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;\u5728\u4f7f\u7528\u6d6e\u70b9\u6570\u8fdb\u884c\u8ba1\u7b97\u65f6\u53ef\u80fd\u4f1a\u5b58\u5728\u5fae\u5c0f\u8bef\u5dee&#xff0c;\u53ef\u4ee5\u901a\u8fc7\u5bfc\u5165decimal\u89e3\u51b3\u3002<\/p>\n<p><span class=\"token keyword\">from<\/span> decimal <span class=\"token keyword\">import<\/span> Decimal<br \/>\nnum3 <span class=\"token operator\">&#061;<\/span> Decimal<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;0.1&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># &#039;&#039; \u6216 &#034;&#034; \u90fd\u53ef\u4ee5<\/span><br \/>\nnum4 <span class=\"token operator\">&#061;<\/span> Decimal<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;0.2&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># &#039;&#039; \u6216 &#034;&#034; \u90fd\u53ef\u4ee5<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num3<span class=\"token operator\">&#043;<\/span>num4<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token number\">0.3<\/span><\/p>\n<h5>3.3 bool\u7c7b\u578b<\/h5>\n<p>\u5e03\u5c14\u578b\u53d8\u91cf\u53ea\u6709 True \u548c False&#xff0c;\u7528\u4e8e\u771f\u5047\u7684\u5224\u65ad&#xff0c;\u6ce8\u610fTrue \u4e0d\u662ftrue False \u4e0d\u662ffalse<\/p>\n<p>bool1 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><br \/>\nbool2 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>bool1<span class=\"token punctuation\">,<\/span> bool2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True False<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span> <span class=\"token boolean\">False<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;Python3\u4e2d&#xff0c;bool \u662f int \u7684\u5b50\u7c7b&#xff0c;True \u548c False \u53ef\u4ee5\u548c\u6570\u5b57\u76f8\u52a0\u3002<\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">issubclass<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">bool<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\nbool1 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><br \/>\nbool2 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>bool1<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>bool2<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token number\">2<\/span><br \/>\n<span class=\"token number\">1<\/span><\/p>\n<p>\u540c\u6837&#xff0c;\u4f60\u53ef\u4ee5\u7528True&#061;&#061;1 \u6216\u8005 False&#061;&#061;0\u6765\u68c0\u6d4b\u3002<\/p>\n<p>bool1 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><br \/>\nbool2 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>bool1<span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>bool2<span class=\"token operator\">&#061;&#061;<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">True<\/span><\/p>\n<p>\u6ce8\u610f&#xff1a;is \u8fd0\u7b97\u7b26\u7528\u4e8e\u6bd4\u8f83&#xff0c;\u4f46\u662f\u5b83\u7528\u4e8e\u8eab\u4efd\u6bd4\u8f83&#xff08;\u5373\u5b83\u4eec\u662f\u5426\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61&#xff0c;\u662f\u5426\u5728\u5185\u5b58\u4e2d\u5360\u636e\u76f8\u540c\u7684\u4f4d\u7f6e&#xff09;&#xff0c;<\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">True<\/span> <span class=\"token keyword\">is<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">False<\/span> <span class=\"token keyword\">is<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">False<\/span><\/p>\n<p>a <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span> <span class=\"token comment\"># \u5217\u8868<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> a  <span class=\"token comment\"># b \u548c a \u5f15\u7528\u540c\u4e00\u4e2a\u5217\u8868\u5bf9\u8c61<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token keyword\">is<\/span> b<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True&#xff08;\u540c\u4e00\u5bf9\u8c61&#xff09;<\/span><\/p>\n<p>c <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token keyword\">is<\/span> c<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False&#xff08;\u503c\u76f8\u540c&#xff0c;\u4f46\u4e0d\u540c\u5bf9\u8c61&#xff09;<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">False<\/span><\/p>\n<p>\u5c0f\u603b\u7ed3&#xff1a;<\/p>\n<table>\n<tr>\u64cd\u4f5c\u7b26\u6bd4\u8f83\u5185\u5bb9\u7b49\u6548\u8c03\u7528<\/tr>\n<tbody>\n<tr>\n<td>&#061;&#061;<\/td>\n<td>\u503c\u662f\u5426\u76f8\u7b49<\/td>\n<td>a.eq(b)<\/td>\n<\/tr>\n<tr>\n<td>is<\/td>\n<td>\u662f\u5426\u540c\u4e00\u5bf9\u8c61<\/td>\n<td>id(a) &#061;&#061; id(b)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9664\u6b64\u81ea\u5916&#xff0c;\u591a\u63d0\u4e00\u5634&#xff0c;\u5728Python\u4e2d&#xff0c;\u80fd\u591f\u89e3\u91ca\u4e3a\u5047\u7684\u503c\u4e0d\u53ea\u6709False&#xff0c;\u8fd8\u6709&#xff1a;<\/p>\n<p>None<\/p>\n<p>0<\/p>\n<p>0.0<\/p>\n<p>False<\/p>\n<p>\u6240\u6709\u7684\u7a7a\u5bb9\u5668&#xff08;\u7a7a\u5217\u8868\u3001\u7a7a\u5143\u7ec4\u3001\u7a7a\u5b57\u5178\u3001\u7a7a\u96c6\u5408)\u4ee5\u53ca\u7a7a\u5b57\u7b26\u4e32&#xff09;\u4f46\u662f\u5e76\u4e0d\u80fd\u8bf4<\/p>\n<p>None &#061;&#061; False \u6216\u8005None is False\u53ea\u80fd\u8bf4\u5e03\u5c14\u4e0a\u4e0b\u6587\u4e2d&#xff0c;\u5b83\u4eec\u90fd\u4f1a\u88ab\u5f53\u4f5c\u201c\u5047\u503c\u201d\u5904\u7406\u903b\u8f91&#xff1a;<\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> <span class=\"token boolean\">None<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;None is falsy&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u4f1a\u6267\u884c<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token keyword\">not<\/span> <span class=\"token boolean\">False<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;False is falsy&#034;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u4f1a\u6267\u884c<\/span><\/p>\n<h4>4.\u5b57\u7b26\u4e32\u7c7b\u578b (str)<\/h4>\n<h5>4.1 \u5b57\u7b26\u4e32\u6982\u5ff5<\/h5>\n<p>\u5b57\u7b26\u4e32\u5c31\u662f\u4e00\u7cfb\u5217\u5b57\u7b26\u3002\u5728Python\u4e2d&#xff0c;\u7528\u5f15\u53f7\u62ec\u8d77\u7684\u90fd\u662f\u5b57\u7b26\u4e32&#xff0c; \u53ef\u4ee5\u4f7f\u7528\u5355\u5f15\u53f7 &#039;&#8230;&#039; \u6216\u53cc\u5f15\u53f7 &#034;&#8230;&#034; \u521b\u5efa\u3002\u4e5f\u53ef\u4f7f\u7528\u53cd\u659c\u6760 \\\\ \u8f6c\u4e49\u7279\u6b8a\u5b57\u7b26\u3002<\/p>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hello, Python!&#034;<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;Hello, Python!&#039;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\nHello<span class=\"token punctuation\">,<\/span> Python!<br \/>\nHello<span class=\"token punctuation\">,<\/span> Python!<\/p>\n<p>\u4e5f\u53ef\u4ee5\u65b9\u4fbf\u7684\u5728\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\u3002<\/p>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;This is a &#039;string&#039;&#034;<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;This is a &#034;string&#034; too&#039;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># This is a &#039;string&#039;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># This is a &#034;string&#034; too<\/span><\/p>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e09\u4e2a\u5f15\u53f7\u8868\u793a\u591a\u884c\u5b57\u7b26\u4e32\u3002\u4e09\u5f15\u53f7\u5141\u8bb8\u4e00\u4e2a\u5b57\u7b26\u4e32\u8de8\u591a\u884c.\u4e00\u4e2a\u5178\u578b\u7684\u7528\u4f8b\u662f&#xff0c;\u5f53\u4f60\u9700\u8981\u4e00\u5757HTML\u6216\u8005SQL\u65f6&#xff0c;\u4f7f\u7528\u4e09\u4e2a\u5f15\u53f7\u5c31\u5f88\u7b80\u5355<\/p>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token triple-quoted-string string\">&#034;&#034;&#034;hello world<br \/>\nHELLO WORLD&#034;&#034;&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\nhello world<br \/>\nHELLO WORLD<\/p>\n<h5>4.2 \u5b57\u7b26\u4e32\u7279\u70b9<\/h5>\n<ul>\n<li>\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u7684\u3001\u6709\u5e8f\u7684\u3002<\/li>\n<li>\u5b57\u7b26\u4e32\u4e2d\u5143\u7d20\u4e0d\u53ef\u4fee\u6539<\/li>\n<li>\u5b57\u7b26\u4e32\u4f7f\u7528\u5355\u5f15\u53f7\u3001\u53cc\u5f15\u53f7\u6216\u4e09\u91cd\u5f15\u53f7\u5b9a\u4e49\u3002<\/li>\n<li>\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u503c\u90fd\u6709\u5bf9\u5e94\u7684\u4f4d\u7f6e\u503c&#xff0c;\u79f0\u4e3a\u7d22\u5f15\u6216\u4e0b\u6807&#xff0c;\u7d22\u5f15\u4ece\u8d77\u59cb\u4ece0\u5f00\u59cb\u5411\u540e\u9010\u4e2a\u9012\u589e&#xff0c;\u5e76\u4e14\u672b\u5c3e\u4ece-1\u5f00\u59cb\u9010\u4e2a\u5411\u524d\u9012\u51cf\u3002<\/li>\n<\/ul>\n<h5>4.3 \u5b57\u7b26\u4e32\u8bbf\u95ee<\/h5>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">[<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">[<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">[<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">:<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u524d\u95ed&#xff08;\u5305\u542b&#xff09;\u540e\u5f00&#xff08;\u4e0d\u5305\u542b&#xff09;\u5de6\u95ed\u53f3\u5f00<\/span><\/p>\n<h5>4.4 \u5b57\u7b26\u4e32\u76f8\u52a0<\/h5>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world\\\\n&#034;<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;welcome to python&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1 <span class=\"token operator\">&#043;<\/span> str2<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">### \u7ed3\u679c###<\/span><br \/>\nhello world<br \/>\nwelcome to python<\/p>\n<h5>4.5 \u5b57\u7b26\u4e32\u4e58\u6cd5<\/h5>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1 <span class=\"token operator\">*<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># hello worldhello world<\/span><br \/>\n<span class=\"token comment\">#\u6216\u8005<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><span class=\"token operator\">*<\/span><span class=\"token number\">2<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\nhello worldhello world<br \/>\nhello worldhello world<\/p>\n<p>\u6ce8\u610f&#xff1a;\u4e0d\u80fd\u7528\u5b57\u7b26\u4e32&#043;2&#xff08;\u6574\u6570&#xff09;\u8fd9\u79cd\u5199\u6cd5\u3002<\/p>\n<p>str3 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><span class=\"token operator\">&#043;<\/span><span class=\"token number\">2<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str3<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">### \u7ed3\u679c###<\/span><br \/>\nTypeError<span class=\"token punctuation\">:<\/span> must be <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">not<\/span> <span class=\"token builtin\">int<\/span><\/p>\n<p>\u5b57\u7b26\u4e32\u4e58\u6cd5 str \\\\* n \u7684\u8bbe\u8ba1\u903b\u8f91&#xff1a;<\/p>\n<p>Python \u7684\u5b57\u7b26\u4e32\u7c7b (str) \u5b9a\u4e49\u4e86 __mul__ \u65b9\u6cd5&#xff0c;\u5141\u8bb8 * \u64cd\u4f5c\u7b26\u4e0e\u6574\u6570\u4ea4\u4e92\u3002<\/p>\n<p>\u5b57\u7b26\u4e32\u4e58\u6cd5 str \\\\&#043; n \u7684\u8bbe\u8ba1\u903b\u8f91&#xff1a;<\/p>\n<p>Python \u4e25\u683c\u533a\u5206\u7c7b\u578b&#xff0c;\u5b57\u7b26\u4e32\u7684 &#043; \u64cd\u4f5c\u7b26&#xff08;\u901a\u8fc7 __add__ \u65b9\u6cd5&#xff09;\u4ec5\u652f\u6301\u4e0e\u5176\u4ed6\u5b57\u7b26\u4e32\u62fc\u63a5\u3002\u6574\u6570\u4e0e\u5b57\u7b26\u4e32\u62fc\u63a5\u7f3a\u4e4f\u660e\u786e\u7684\u8bed\u4e49&#xff08;\u662f\u8f6c\u6362\u6210\u5b57\u7b26\u4e32\u518d\u62fc\u63a5&#xff0c;\u8fd8\u662f\u6570\u5b66\u76f8\u52a0&#xff1f;&#xff09;&#xff0c;\u56e0\u6b64 Python \u9009\u62e9\u76f4\u63a5\u7981\u6b62&#xff0c;\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n<h5>4.6 \u5b57\u7b26\u4e32\u7f16\u89e3\u7801<\/h5>\n<p>\u7f16\u7801&#xff1a;\u5c06\u5b57\u7b26\u4e32\u6570\u636e\u7c7b\u578b\u8f6c\u6362\u4e3a\u5b57\u8282\u578b\u6570\u636e\u7684\u8fc7\u7a0b\u6210\u4e3a\u7f16\u7801 encode&#xff0c;\u9700\u8981\u6307\u5b9a\u7f16\u7801\u7c7b\u578b<\/p>\n<p>\u89e3\u7801&#xff1a; \u5c06\u5b57\u8282\u578b\u6570\u636e\u8f6c\u6362\u4e3a\u5b57\u7b26\u578b\u6570\u636e\u7684\u8fc7\u7a0b\u79f0\u4e3a\u89e3\u7801 decode<\/p>\n<p><span class=\"token comment\"># \u539f\u59cb\u5b57\u7b26\u4e32<\/span><br \/>\nstr1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;\u4f60\u597d\u4e2d\u56fd&#039;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u7f16\u7801<\/span><br \/>\nbyte1 <span class=\"token operator\">&#061;<\/span> str1<span class=\"token punctuation\">.<\/span>encode<span class=\"token punctuation\">(<\/span>encoding<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;utf8&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>byte1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">type<\/span><span class=\"token punctuation\">(<\/span>byte1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># &lt;class &#039;bytes&#039;&gt;<\/span><\/p>\n<p><span class=\"token comment\"># \u89e3\u7801<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> byte1<span class=\"token punctuation\">.<\/span>decode<span class=\"token punctuation\">(<\/span>encoding<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#039;utf8&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u4f60\u597d\u4e2d\u56fd<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">type<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># &lt;class &#039;str&#039;&gt;<\/span><\/p>\n<p><span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n\u4f60\u597d\u4e2d\u56fd<br \/>\n<span class=\"token string\">b&#039;\\\\xe4\\\\xbd\\\\xa0\\\\xe5\\\\xa5\\\\xbd\\\\xe4\\\\xb8\\\\xad\\\\xe5\\\\x9b\\\\xbd&#039;<\/span> <span class=\"token comment\"># 12\u4e2a\u5b57\u8282<\/span><br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token string\">&#039;bytes&#039;<\/span><span class=\"token operator\">&gt;<\/span><br \/>\n\u4f60\u597d\u4e2d\u56fd<br \/>\n<span class=\"token operator\">&lt;<\/span><span class=\"token keyword\">class<\/span> <span class=\"token string\">&#039;str&#039;<\/span><span class=\"token operator\">&gt;<\/span><\/p>\n<h5>4.7 \u6210\u5458\u662f\u5426\u4e3a\u5b57\u7b26\u4e32\u4e2d\u5143\u7d20<\/h5>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;lo&#034;<\/span> <span class=\"token keyword\">in<\/span> str1<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span><\/p>\n<h5>4.8 \u5b57\u7b26\u4e32\u7684\u5e38\u7528\u51fd\u6570\u64cd\u4f5c<\/h5>\n<p>1.split()<\/p>\n<p><span class=\"token builtin\">str<\/span><span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;welcome to the world of python&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">.<\/span>split<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># \u9ed8\u8ba4\u6309\u4efb\u4f55\u7a7a\u767d\u5b57\u7b26\u4e32\u5206\u9694\u5e76\u5728\u7ed3\u679c\u4e2d\u4e22\u5f03\u7a7a\u5b57\u7b26\u4e32<\/span><\/p>\n<p>str1<span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5ddd\u83dc,\u7ca4\u83dc,\u6e58\u83dc,\u9c81\u83dc&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">.<\/span>split<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;,&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">#\u6309x\u5206\u9694\u5b57\u7b26\u4e32 \u53ef\u6307\u5b9a\u6700\u5927\u5206\u9694\u6b21\u6570<\/span><\/p>\n<p><span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;welcome&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;to&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;the&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;world&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;of&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;python&#039;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;\u5ddd\u83dc&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;\u7ca4\u83dc&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;\u6e58\u83dc,\u9c81\u83dc&#039;<\/span><span class=\"token punctuation\">]<\/span><\/p>\n<p>2.replace()<\/p>\n<p>str1<span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5ddd\u83dc,\u7ca4\u83dc,\u6e58\u83dc,\u9c81\u83dc,\u7ca4\u83dc,\u7ca4\u83dc&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">.<\/span>replace<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ca4\u83dc&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u82cf\u83dc&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n\u5ddd\u83dc<span class=\"token punctuation\">,<\/span>\u82cf\u83dc<span class=\"token punctuation\">,<\/span>\u6e58\u83dc<span class=\"token punctuation\">,<\/span>\u9c81\u83dc<span class=\"token punctuation\">,<\/span>\u82cf\u83dc<span class=\"token punctuation\">,<\/span>\u7ca4\u83dc<\/p>\n<p>3.join()<\/p>\n<p>\u7528\u6cd5&#xff1a;str.join(iterable)<\/p>\n<p>\u5176\u4e2d&#xff1a;<\/p>\n<ul>\n<li>str \u662f\u8fde\u63a5\u7b26&#xff08;\u53ef\u4ee5\u662f\u4efb\u610f\u5b57\u7b26\u4e32&#xff09;\u3002<\/li>\n<li>iterable \u662f\u9700\u8981\u8fde\u63a5\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61&#xff08;\u5982\u5217\u8868\u3001\u5b57\u7b26\u4e32\u7b49&#xff09;\u3002<\/li>\n<\/ul>\n<p>result <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;-&#034;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;abc&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\na<span class=\"token operator\">&#8211;<\/span>b<span class=\"token operator\">&#8211;<\/span>c<\/p>\n<p>foods <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;\u5ddd\u83dc&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7ca4\u83dc&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u6e58\u83dc&#034;<\/span><span class=\"token punctuation\">]<\/span><br \/>\nresult1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u3001&#034;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>foods<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7528 &#034;\u3001&#034; \u8fde\u63a5\u5217\u8868\u5143\u7d20<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n\u5ddd\u83dc\u3001\u7ca4\u83dc\u3001\u6e58\u83dc<\/p>\n<p>str1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;\u5ddd\u83dc,\u7ca4\u83dc,\u6e58\u83dc,\u9c81\u83dc,\u7ca4\u83dc,\u7ca4\u83dc&#034;<\/span><br \/>\nsplit_list <span class=\"token operator\">&#061;<\/span> str1<span class=\"token punctuation\">.<\/span>split<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;,&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6309\u9017\u53f7\u5206\u5272\u6210\u5217\u8868<\/span><br \/>\nresult <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;-&#034;<\/span><span class=\"token punctuation\">.<\/span>join<span class=\"token punctuation\">(<\/span>split_list<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7528 &#034;-&#034; \u8fde\u63a5\u5217\u8868\u5143\u7d20<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n\u5ddd\u83dc<span class=\"token operator\">&#8211;<\/span>\u7ca4\u83dc<span class=\"token operator\">&#8211;<\/span>\u6e58\u83dc<span class=\"token operator\">&#8211;<\/span>\u9c81\u83dc<span class=\"token operator\">&#8211;<\/span>\u7ca4\u83dc<span class=\"token operator\">&#8211;<\/span>\u7ca4\u83dc<\/p>\n<p>4.find()<\/p>\n<p><span class=\"token builtin\">str<\/span><span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;welcome to the world of python&#034;<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">.<\/span>find<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;world&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token number\">15<\/span><\/p>\n<p>5.index()<\/p>\n<p><span class=\"token builtin\">str<\/span><span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;welcome to the world of python&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">str<\/span><span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;to&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u7ed3\u679c###<\/span><br \/>\n<span class=\"token number\">8<\/span><\/p>\n<p>6.find()\u4e0eindex&#xff08;&#xff09;\u533a\u522b<\/p>\n<p><span class=\"token comment\"># 1.\u627e\u5230\u5b50\u4e32\u65f6<\/span><br \/>\ns <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span>find<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;world&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>    <span class=\"token comment\"># \u8f93\u51fa: 6<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;world&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u8f93\u51fa: 6<\/span><\/p>\n<p><span class=\"token comment\"># 2.\u672a\u627e\u5230\u5b50\u4e32\u65f6<\/span><br \/>\n<span class=\"token comment\"># find() \u8fd4\u56de -1<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span>find<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Python&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa: -1<\/span><br \/>\n<span class=\"token comment\"># index() \u629b\u51fa\u5f02\u5e38&#xff1a;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>s<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Python&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u629b\u51fa ValueError: substring not found<\/span><\/p>\n<p><span class=\"token comment\"># 3.index() \u7684\u6269\u5c55\u7528\u6cd5<\/span><br \/>\n<span class=\"token comment\"># index() \u8fd8\u53ef\u7528\u4e8e \u5217\u8868&#xff08;list&#xff09; \u548c \u5143\u7ec4&#xff08;tuple&#xff09;&#xff0c;\u800c find() \u4ec5\u9650\u5b57\u7b26\u4e32&#xff1a;<\/span><br \/>\n<span class=\"token comment\"># \u5217\u8868\u4e2d\u4f7f\u7528 index()<\/span><br \/>\nlst <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>lst<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">(<\/span><span class=\"token number\">20<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa: 1<\/span><\/p>\n<p><span class=\"token comment\"># \u5143\u7ec4\u4e2d\u4f7f\u7528 index()<\/span><br \/>\ntup <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>tup<span class=\"token punctuation\">.<\/span>index<span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># \u8f93\u51fa: 2<\/span><\/p>\n<p>find()\u548cindex()\u533a\u522b\u5bf9\u6bd4<\/p>\n<table>\n<tr>\u65b9\u6cd5\u9002\u7528\u7c7b\u578b\u627e\u5230\u5b50\u4e32\u65f6\u672a\u627e\u5230\u5b50\u4e32\u65f6\u9519\u8bef\u5904\u7406<\/tr>\n<tbody>\n<tr>\n<td>find()<\/td>\n<td>\u5b57\u7b26\u4e32&#xff08;str&#xff09;<\/td>\n<td>\u8fd4\u56de\u5b50\u4e32\u7684\u8d77\u59cb\u7d22\u5f15&#xff08;\u22650&#xff09;<\/td>\n<td>\u8fd4\u56de -1<\/td>\n<td>\u4e0d\u62a5\u9519<\/td>\n<\/tr>\n<tr>\n<td>index()<\/td>\n<td>\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4<\/td>\n<td>\u8fd4\u56de\u5b50\u4e32\u7684\u8d77\u59cb\u7d22\u5f15&#xff08;\u22650&#xff09;<\/td>\n<td>\u629b\u51fa ValueError<\/td>\n<td>\u62a5\u9519<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5176\u5b83\u51fd\u6570&#xff1a;<\/p>\n<table>\n<tr>\u51fd\u6570\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>str.replace(old,new[,max])<\/td>\n<td>\u628a\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684old\u66ff\u6362\u6210new,\u5982\u679c\u6307\u5b9amax&#xff0c;\u5219\u66ff\u6362\u4e0d\u8d85\u8fc7max\u6b21<\/td>\n<\/tr>\n<tr>\n<td>str.split([x][,n])<\/td>\n<td>\u6309x\u5206\u9694\u5b57\u7b26\u4e32&#xff0c;\u9ed8\u8ba4\u6309\u4efb\u4f55\u7a7a\u767d\u5b57\u7b26\u4e32\u5206\u9694\u5e76\u5728\u7ed3\u679c\u4e2d\u4e22\u5f03\u7a7a\u5b57\u7b26\u4e32\u3002\u53ef\u6307\u5b9a\u6700\u5927\u5206\u9694\u6b21\u6570<\/td>\n<\/tr>\n<tr>\n<td>str.rsplit([x][,n])<\/td>\n<td>\u4e0esplit()\u7c7b\u4f3c&#xff0c;\u4ece\u53f3\u8fb9\u5f00\u59cb\u5206\u9694<\/td>\n<\/tr>\n<tr>\n<td>x.join(seq)<\/td>\n<td>\u4ee5x\u4f5c\u4e3a\u5206\u9694\u7b26&#xff0c;\u5c06\u5e8f\u5217\u4e2d\u6240\u6709\u7684\u5b57\u7b26\u4e32\u5408\u5e76\u4e3a\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32<\/td>\n<\/tr>\n<tr>\n<td>str.strip([x])<\/td>\n<td>\u622a\u6389\u5b57\u7b26\u4e32\u4e24\u8fb9\u7684\u7a7a\u683c\u6216\u6307\u5b9a\u5b57\u7b26<\/td>\n<\/tr>\n<tr>\n<td>str.lstrip([x])<\/td>\n<td>\u622a\u6389\u5b57\u7b26\u4e32\u5de6\u8fb9\u7684\u7a7a\u683c\u6216\u6307\u5b9a\u5b57\u7b26<\/td>\n<\/tr>\n<tr>\n<td>str.rstrip([x])<\/td>\n<td>\u622a\u6389\u5b57\u7b26\u4e32\u53f3\u8fb9\u7684\u7a7a\u683c\u6216\u6307\u5b9a\u5b57\u7b26<\/td>\n<\/tr>\n<tr>\n<td>str.removeprefix()<\/td>\n<td>\u622a\u6389\u5b57\u7b26\u4e32\u6307\u5b9a\u524d\u7f00<\/td>\n<\/tr>\n<tr>\n<td>str.removesuffix()<\/td>\n<td>\u622a\u6389\u5b57\u7b26\u4e32\u6307\u5b9a\u540e\u7f00<\/td>\n<\/tr>\n<tr>\n<td>str.upper()<\/td>\n<td>\u5c06\u6240\u6709\u5b57\u7b26\u8f6c\u4e3a\u5927\u5199<\/td>\n<\/tr>\n<tr>\n<td>str.lower()<\/td>\n<td>\u5c06\u6240\u6709\u5b57\u7b26\u8f6c\u4e3a\u5c0f\u5199<\/td>\n<\/tr>\n<tr>\n<td>str.swapcase()<\/td>\n<td>\u53cd\u8f6c\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u5927\u5c0f\u5199<\/td>\n<\/tr>\n<tr>\n<td>str.capitalize()<\/td>\n<td>\u5c06\u5b57\u7b26\u4e32\u7b2c\u4e00\u4e2a\u5b57\u6bcd\u53d8\u4e3a\u5927\u5199&#xff0c;\u5176\u4ed6\u5b57\u6bcd\u53d8\u4e3a\u5c0f\u5199<\/td>\n<\/tr>\n<tr>\n<td>str.title()<\/td>\n<td>\u5c06\u5b57\u7b26\u4e32\u6bcf\u4e2a\u5355\u8bcd\u9996\u5b57\u6bcd\u5927\u5199<\/td>\n<\/tr>\n<tr>\n<td>str.casefold()<\/td>\n<td>\u8fd4\u56de\u9002\u5408\u65e0\u5927\u5c0f\u5199\u6bd4\u8f83\u7684\u5b57\u7b26\u4e32\u7248\u672c<\/td>\n<\/tr>\n<tr>\n<td>len(str)<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u957f\u5ea6<\/td>\n<\/tr>\n<tr>\n<td>max(str)<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u6700\u5927\u503c<\/td>\n<\/tr>\n<tr>\n<td>min(str)<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u6700\u5c0f\u503c<\/td>\n<\/tr>\n<tr>\n<td>str.find(x[,start][,end])<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u4e2ax\u7684\u7d22\u5f15\u503c&#xff0c;\u4e0d\u5b58\u5728\u5219\u8fd4\u56de-1&#xff0c;\u53ef\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u59cb\u7ed3\u675f\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>str.rfind(x[,start][,end])<\/td>\n<td>\u4e0efind()\u7c7b\u4f3c&#xff0c;\u4ece\u53f3\u8fb9\u5f00\u59cb\u67e5\u627e<\/td>\n<\/tr>\n<tr>\n<td>str.index(x[,start][,end])<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u4e2ax\u7684\u7d22\u5f15\u503c&#xff0c;\u4e0d\u5b58\u5728\u5219\u62a5\u9519&#xff0c;\u53ef\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u59cb\u7ed3\u675f\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>str.rindex(x[,start][,end])<\/td>\n<td>\u4e0eindex()\u7c7b\u4f3c&#xff0c;\u4ece\u53f3\u8fb9\u5f00\u59cb\u67e5\u627e<\/td>\n<\/tr>\n<tr>\n<td>str.count(x[,start][,end])<\/td>\n<td>\u8fd4\u56de\u5b57\u7b26\u4e32\u4e2dx\u7684\u4e2a\u6570&#xff0c;\u53ef\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u59cb\u7ed3\u675f\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>str.startswith(x[,start][,end])<\/td>\n<td>\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u4ee5x\u5f00\u5934&#xff0c;\u53ef\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u59cb\u7ed3\u675f\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>str.endswith(x[,start][,end])<\/td>\n<td>\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u4ee5x\u7ed3\u5c3e&#xff0c;\u53ef\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u59cb\u7ed3\u675f\u8303\u56f4<\/td>\n<\/tr>\n<tr>\n<td>str.isspace()<\/td>\n<td>\u68c0\u67e5\u5b57\u7b26\u4e32\u662f\u5426\u975e\u7a7a\u4e14\u53ea\u5305\u542b\u7a7a\u767d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>5.\u8f93\u5165\u4e0e\u8f93\u51fa<\/h4>\n<h5>5.1 \u8f93\u5165<\/h5>\n<p>\u8f93\u5165&#xff1a;\u5982\u679c\u63a5\u6536\u7528\u6237\u5728\u952e\u76d8\u4e0a\u8f93\u5165\u4e00\u4e9b\u5b57\u7b26&#xff0c;Python\u63d0\u4f9b\u4e86\u4e00\u4e2ainput()\u51fd\u6570&#xff0c;\u53ef\u4ee5\u8ba9\u7528\u6237\u8f93\u5165\u5b57\u7b26\u4e32&#xff0c;\u5e76\u5b58\u653e\u5230\u4e00\u4e2a\u5b57\u7b26\u4e32\u53d8\u91cf\u91cc\u3002<\/p>\n<p>\u8bed\u6cd5&#xff1a;\u5b57\u7b26\u4e32\u53d8\u91cf &#061; input(\u201c\u63d0\u793a\u4fe1\u606f\u201d)<\/p>\n<p><span class=\"token comment\"># Python\u5f00\u59cb\u7b49\u5f85\u4f60\u7684\u8f93\u5165\u3002\u8fd9\u65f6&#xff0c;\u4f60\u53ef\u4ee5\u8f93\u5165\u4efb\u610f\u5b57\u7b26&#xff0c;\u7136\u540e\u6309\u56de\u8f66\u540e\u5b8c\u6210\u8f93\u5165\u3002<\/span><br \/>\ninput_str <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">input<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8f93\u5165\u5b8c\u6210\u540e&#xff0c;\u4e0d\u4f1a\u6709\u4efb\u4f55\u63d0\u793a&#xff0c;\u521a\u624d\u8f93\u5165\u7684\u5185\u5bb9\u5b58\u653e\u5230input_str\u53d8\u91cf\u91cc\u4e86<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;input_str\u6570\u636e\u7c7b\u578b\u4e3a:&#034;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token builtin\">type<\/span><span class=\"token punctuation\">(<\/span>input_str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8f93\u51fainput_str\u67e5\u770b\u53d8\u91cf\u5185\u5bb9<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>input_str<span class=\"token punctuation\">)<\/span><\/p>\n<h5>5.2 \u8f93\u51fa<\/h5>\n<ul>\n<li>\n<p>\u666e\u901a\u8f93\u51fa<\/p>\n<p> <span class=\"token comment\"># \u4f7f\u7528 print() \u53ef\u5c06\u5185\u5bb9\u6253\u5370\u3002<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Hello Python&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u591a\u4e2a\u5185\u5bb9\u4e4b\u95f4\u53ef\u4ee5\u4f7f\u7528\u9017\u53f7\u9694\u5f00\u3002<\/span><br \/>\nint1<span class=\"token operator\">&#061;<\/span><span class=\"token number\">10<\/span><br \/>\nfloat1<span class=\"token operator\">&#061;<\/span><span class=\"token number\">10.0<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;int1&#061;&#034;<\/span><span class=\"token punctuation\">,<\/span> int1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u53ef\u4ee5\u4f7f\u7528 end&#061; \u6765\u63a7\u5236 print() \u4ee5\u4ec0\u4e48\u7ed3\u5c3e<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4f7f\u7528\\\\\\\\n\u7ed3\u5c3e&#034;<\/span><span class=\"token punctuation\">,<\/span> end<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7528\\\\n\u7ed3\u5c3e&#xff0c;\u9ed8\u8ba4\u5c31\u662f \\\\n&#xff08;\u6362\u884c&#xff09;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4f7f\u7528&#034;&#034;\u7ed3\u5c3e&#039;<\/span><span class=\"token punctuation\">,<\/span> end<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u7528\u7a7a\u5b57\u7b26\u4e32\u7ed3\u5c3e<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n\u4f7f\u7528\\\\n\u7ed3\u5c3e<br \/>\n\u4f7f\u7528<span class=\"token string\">&#034;&#034;<\/span>\u7ed3\u5c3eHello\n <\/li>\n<li>\n<p>\u683c\u5f0f\u5316\u8f93\u51fa<\/p>\n<p>&#xff08;1&#xff09;\u5b57\u7b26\u4e32\u4e2d\u4f7f\u7528 % \u5360\u4f4d<\/p>\n<p> int1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nfloat1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.14159<\/span><br \/>\n<span class=\"token comment\"># %d&#xff1a;d \u662f decimal&#xff08;\u5341\u8fdb\u5236\u6574\u6570&#xff09;\u7684\u7f29\u5199&#xff0c;\u7528\u4e8e\u5c06\u6570\u636e\u683c\u5f0f\u5316\u4e3a\u6574\u6570 %.3f \u8868\u793a\u4fdd\u7559 3 \u4f4d\u5c0f\u6570<\/span><br \/>\nstr1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;int1 &#061; %d, float1 &#061; %.3f&#034;<\/span> <span class=\"token operator\">%<\/span> <span class=\"token punctuation\">(<\/span>int1<span class=\"token punctuation\">,<\/span> float1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># int1 &#061; 10, float1 &#061; 3.141590<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\nint1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> float1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.142<\/span><\/p>\n<p>&#xff08;2&#xff09;\u5b57\u7b26\u4e32.format()<\/p>\n<li>\n<p>\u663e\u793a\u6307\u5b9a\u7d22\u5f15,\u53ef\u7075\u6d3b\u8c03\u6574\u8f93\u51fa\u987a\u5e8f\u3002<\/p>\n<p> <span class=\"token comment\"># 1.\u91cd\u590d\u5f15\u7528\u540c\u4e00\u53d8\u91cf<\/span><br \/>\nname <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Alice&#034;<\/span><br \/>\nage <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">25<\/span><br \/>\ngreeting <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;Hi {0}! {0} is {1} years old.&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">,<\/span> age<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>greeting<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8f93\u51fa: Hi Alice! Alice is 25 years old.<\/span><\/p>\n<p><span class=\"token comment\"># 2.\u8c03\u6574\u53c2\u6570\u987a\u5e8f<\/span><br \/>\nx<span class=\"token punctuation\">,<\/span> y <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">20<\/span><br \/>\nresult <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;y &#061; {1}, x &#061; {0}&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>x<span class=\"token punctuation\">,<\/span> y<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>result<span class=\"token punctuation\">)<\/span>\n <\/li>\n<li>\n<p>\u9690\u5f0f\u7d22\u5f15<\/p>\n<p> <span class=\"token comment\">#  \u9690\u5f0f\u7d22\u5f15,\u76f4\u63a5\u6309\u987a\u5e8f\u586b\u5145&#xff0c;\u907f\u514d\u7d22\u5f15\u5e72\u6270\u683c\u5f0f\u5316\u7b26\u53f7&#xff08;\u5982 &#096;:02d&#096;&#xff09;<\/span><br \/>\n<span class=\"token comment\"># 1.\u7b80\u5355\u987a\u5e8f\u62fc\u63a5<\/span><br \/>\nfruit <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;apple&#034;<\/span><br \/>\nprice <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1.5<\/span><br \/>\nmsg <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;The {} costs ${:.2f}.&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>fruit<span class=\"token punctuation\">,<\/span> price<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>msg<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8f93\u51fa: The apple costs $1.50.<\/span><br \/>\n<span class=\"token comment\"># 2.\u7ed3\u5408\u6570\u5b57\u683c\u5f0f\u5316<\/span><br \/>\nhours<span class=\"token punctuation\">,<\/span> minutes <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><br \/>\ntime <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;{:02d}:{:02d}&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>hours<span class=\"token punctuation\">,<\/span> minutes<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>time<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u8f93\u51fa: 03:05<\/span>\n <\/li>\n<li>\n<p>\u8bbe\u7f6e\u53c2\u6570<\/p>\n<p> int1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nfloat1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.14159<\/span><br \/>\nbool1 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;int1 &#061; {i1}, float1 &#061; {f1}, bool1 &#061; {b1}&#034;<\/span><span class=\"token punctuation\">.<\/span><span class=\"token builtin\">format<\/span><span class=\"token punctuation\">(<\/span>i1<span class=\"token operator\">&#061;<\/span>int1<span class=\"token punctuation\">,<\/span> f1<span class=\"token operator\">&#061;<\/span>float1<span class=\"token punctuation\">,<\/span> b1<span class=\"token operator\">&#061;<\/span>bool1<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># int1 &#061; 10, float1 &#061; 3.14159, bool1 &#061; True<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token comment\"># int1 &#061; 10, float1 &#061; 3.14159, bool1 &#061; True<\/span>\n <\/li>\n<li>\n<p>f-string(\u5b57\u7b26\u4e32)<\/p>\n<p>\u73b0\u4ee3 Python \u4ee3\u7801\u4e2d&#xff0c;f-string \u662f\u66f4\u7b80\u6d01\u3001\u9ad8\u6548\u7684\u683c\u5f0f\u5316\u65b9\u6848&#xff1a;<\/p>\n<p>\u5b57\u7b26\u4e32\u524d\u52a0\u4e0a\u4e00\u4e2a f &#xff0c;\u5b57\u7b26\u4e32\u4e2d\u7684{}\u5185\u5199\u5165\u53d8\u91cf\u540d<\/p>\n<p> <span class=\"token comment\"># \u76f4\u63a5\u5728\u5b57\u7b26\u4e32\u4e2d\u5d4c\u5165\u53d8\u91cf\u540d&#xff0c;\u53ef\u8bfb\u6027\u6781\u5f3a\u3002<\/span><br \/>\n<span class=\"token comment\"># \u652f\u6301\u8868\u8fbe\u5f0f\u548c\u51fd\u6570\u8c03\u7528<\/span><br \/>\nint1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nfloat1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.14159<\/span><br \/>\nstr1 <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;int1 &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>int1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, float1 &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>float1<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><br \/>\nstr2 <span class=\"token operator\">&#061;<\/span> <span class=\"token string-interpolation\"><span class=\"token string\">f&#034;int1 &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>int1<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str1<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># int1 &#061; 10, float1 &#061; 3.14159<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>str2<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># 11<\/span><br \/>\n<span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token comment\"># int1 &#061; 10, float1 &#061; 3.14159<\/span><br \/>\n<span class=\"token comment\"># 11<\/span>\n <\/li>\n<\/li>\n<\/ul>\n<h3>\u7b2c\u56db\u7ae0 Python\u8fd0\u7b97\u7b26<\/h3>\n<h4>1. \u7b97\u6570\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e\u5b9e\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>&#043;<\/td>\n<td>\u52a0<\/td>\n<td>a &#043; b<\/td>\n<\/tr>\n<tr>\n<td>&#8211;<\/td>\n<td>\u51cf\u3001\u6216\u53d6\u8d1f<\/td>\n<td>a &#8211; b\u3001-a<\/td>\n<\/tr>\n<tr>\n<td>*<\/td>\n<td>\u4e58<\/td>\n<td>a * b<\/td>\n<\/tr>\n<tr>\n<td>\/<\/td>\n<td>\u9664<\/td>\n<td>a \/ b<\/td>\n<\/tr>\n<tr>\n<td>\/\/<\/td>\n<td>\u6574\u9664&#xff0c;\u9664\u540e\u5411\u4e0b\u53d6\u6574<\/td>\n<td>a \/\/ b<\/td>\n<\/tr>\n<tr>\n<td>%<\/td>\n<td>\u6a21&#xff0c;\u8fd4\u56de\u9664\u6cd5\u7684\u4f59\u6570<\/td>\n<td>a % b<\/td>\n<\/tr>\n<tr>\n<td>**<\/td>\n<td>\u5e42<\/td>\n<td>a ** b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>a <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">&#043;<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;&#043;&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">&#8211;<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;-&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">*<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;*&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">\/<\/span> b  <span class=\"token comment\">#\u6ce8\u610f&#xff1a;\u7ed3\u679c\u4e3a\u6d6e\u70b9\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\/&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">%<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;%&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\na <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">**<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u6b21\u65b9\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\na <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><br \/>\nc <span class=\"token operator\">&#061;<\/span> a <span class=\"token operator\">\/\/<\/span> b<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>a <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\/\/&#034;<\/span> <span class=\"token punctuation\">,<\/span> b <span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;\u7684\u7ed3\u679c\u4e3a&#034;<\/span> <span class=\"token punctuation\">,<\/span> c<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token number\">20<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">10<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">30<\/span><br \/>\n<span class=\"token number\">20<\/span> <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">10<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">10<\/span><br \/>\n<span class=\"token number\">20<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">10<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">200<\/span><br \/>\n<span class=\"token number\">20<\/span> <span class=\"token operator\">\/<\/span> <span class=\"token number\">10<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">2.0<\/span><br \/>\n<span class=\"token number\">20<\/span> <span class=\"token operator\">%<\/span> <span class=\"token number\">10<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">0<\/span><br \/>\n<span class=\"token number\">2<\/span> \u7684 <span class=\"token number\">3<\/span> \u6b21\u65b9\u7ed3\u679c\u4e3a <span class=\"token number\">8<\/span><br \/>\n<span class=\"token number\">10<\/span> <span class=\"token operator\">\/\/<\/span> <span class=\"token number\">3<\/span> \u7684\u7ed3\u679c\u4e3a <span class=\"token number\">3<\/span><\/p>\n<h4>2. \u8d4b\u503c\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e\u5b9e\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>&#061;<\/td>\n<td>\u8d4b\u503c<\/td>\n<td>a &#061; 1<\/td>\n<\/tr>\n<tr>\n<td>&#043;&#061;<\/td>\n<td>\u52a0\u6cd5\u8d4b\u503c<\/td>\n<td>a &#043;&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a &#043; 2<\/td>\n<\/tr>\n<tr>\n<td>-&#061;<\/td>\n<td>\u51cf\u6cd5\u8d4b\u503c<\/td>\n<td>a -&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a &#8211; 2<\/td>\n<\/tr>\n<tr>\n<td>*&#061;<\/td>\n<td>\u4e58\u6cd5\u8d4b\u503c<\/td>\n<td>a *&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a * 2<\/td>\n<\/tr>\n<tr>\n<td>\/&#061;<\/td>\n<td>\u9664\u6cd5\u8d4b\u503c<\/td>\n<td>a \/&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a \/ 2<\/td>\n<\/tr>\n<tr>\n<td>\/\/&#061;<\/td>\n<td>\u6574\u9664\u8d4b\u503c<\/td>\n<td>a \/\/&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a \/\/ 2<\/td>\n<\/tr>\n<tr>\n<td>%&#061;<\/td>\n<td>\u6a21\u8d4b\u503c<\/td>\n<td>a %&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a % 2<\/td>\n<\/tr>\n<tr>\n<td>**&#061;<\/td>\n<td>\u5e42\u8d4b\u503c<\/td>\n<td>a **&#061; 2&#xff0c;\u7b49\u540c\u4e8ea &#061; a ** 2<\/td>\n<\/tr>\n<tr>\n<td>:&#061;<\/td>\n<td>\u6d77\u8c61\u8fd0\u7b97\u7b26&#xff0c;\u5728\u8868\u8fbe\u5f0f\u4e2d\u540c\u65f6\u8fdb\u884c\u8d4b\u503c\u548c\u8fd4\u56de\u8fd0\u7b97\u7ed3\u679c\u3002Python3.8 \u7248\u672c\u65b0\u589e<\/td>\n<td>num1 &#061; 20 print((num2 :&#061; 3**2) &gt; num1) print(num2)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>3. \u6bd4\u8f83\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e\u5b9e\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>&#061;&#061;<\/td>\n<td>\u76f8\u7b49&#xff0c;\u6bd4\u8f83\u4e24\u8005\u7684\u503c<\/td>\n<td>a &#061;&#061; b<\/td>\n<\/tr>\n<tr>\n<td>!&#061;<\/td>\n<td>\u4e0d\u76f8\u7b49<\/td>\n<td>a !&#061; b<\/td>\n<\/tr>\n<tr>\n<td>&gt;<\/td>\n<td>\u5927\u4e8e<\/td>\n<td>a &gt; b<\/td>\n<\/tr>\n<tr>\n<td>&lt;<\/td>\n<td>\u5c0f\u4e8e<\/td>\n<td>a &lt; b<\/td>\n<\/tr>\n<tr>\n<td>&gt;&#061;<\/td>\n<td>\u5927\u4e8e\u7b49\u4e8e<\/td>\n<td>a &gt;&#061; b<\/td>\n<\/tr>\n<tr>\n<td>&lt;&#061;<\/td>\n<td>\u5c0f\u4e8e\u7b49\u4e8e<\/td>\n<td>a &lt;&#061; b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>num1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">10<\/span><br \/>\nnum2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&#061;&#061;<\/span> num2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">!&#061;<\/span> num2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&gt;<\/span> num2<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># Flase<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&lt;<\/span> num2<span class=\"token punctuation\">)<\/span>   <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&gt;&#061;<\/span> num2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&lt;&#061;<\/span> num2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\nnum3 <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;abc&#039;<\/span><br \/>\n<span class=\"token comment\"># \u6ce8\u610f&#xff1a;\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u4e0d\u80fd\u8fdb\u884c\u5927\u5c0f\u7684\u6bd4\u8f83<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num1 <span class=\"token operator\">&gt;<\/span> num3<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u5982\u679c\u662f\u5b57\u7b26\u4e32\u6bd4\u8f83\u5927\u5c0f&#xff0c;\u662f\u4ece\u6700\u5de6\u8fb9\u5f00\u59cb\u9010\u4e2a\u6bd4\u8f83\u5b57\u7b26\u4e32\u4e2d\u76f8\u5e94\u4f4d\u7f6e\u7684\u5b57\u7b26\u7684ASCII\u7801<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;5&#039;<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token string\">&#039;6&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># False # \u20195\u2018&#xff08;ASCII\u7801&#xff09;53 \u20196\u2018&#xff08;ASCII\u7801&#xff09;54 <\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;15&#039;<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token string\">&#039;6&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># False # &#039;1&#039; \u7684 ASCII \u7801\u662f 49\u3002 &#039;6&#039; \u7684 ASCII \u7801\u662f 54\u300249 &lt; 54&#xff0c;\u6240\u4ee5 &#039;1&#039; &lt; &#039;6&#039;&#xff0c;\u6b64\u65f6\u5df2\u7ecf\u53ef\u4ee5\u786e\u5b9a &#039;15&#039; &lt; &#039;6&#039;&#xff0c;\u76f4\u63a5\u8fd4\u56de False,\u4e0d\u4f1a\u7ee7\u7eed\u6bd4\u8f83\u540e\u9762\u7684\u5b57\u7b26&#xff08;\u5373\u4f7f &#039;15&#039; \u6bd4 &#039;6&#039; \u957f&#xff09;<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><\/p>\n<p>TypeError<span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#039;&gt;&#039;<\/span> <span class=\"token keyword\">not<\/span> supported between instances of <span class=\"token string\">&#039;int&#039;<\/span> <span class=\"token keyword\">and<\/span> <span class=\"token string\">&#039;str&#039;<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">False<\/span><\/p>\n<h4>4. \u903b\u8f91\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e<\/tr>\n<tbody>\n<tr>\n<td>and<\/td>\n<td>\u4e0e&amp;&#xff0c;x and y&#xff0c;\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u6c42\u503c&#xff0c;\u5982\u679c \u6240\u6709\u64cd\u4f5c\u6570\u4e3a\u771f&#xff0c;\u8fd4\u56de \u6700\u540e\u4e00\u4e2a\u771f\u503c\u5982\u9047\u5230\u5047\u503c&#xff0c;\u76f4\u63a5\u8fd4\u56de \u7b2c\u4e00\u4e2a\u5047\u503c&#xff0c;\u5e76\u505c\u6b62\u540e\u7eed\u8ba1\u7b97\u3002<\/td>\n<\/tr>\n<tr>\n<td>or<\/td>\n<td>\u6216&#xff0c;x or y&#xff0c;\u4ece\u5de6\u5230\u53f3\u4f9d\u6b21\u6c42\u503c&#xff0c;\u5982\u679c \u9047\u5230\u7b2c\u4e00\u4e2a\u771f\u503c&#xff0c;\u76f4\u63a5\u8fd4\u56de\u5b83&#xff0c;\u5e76\u505c\u6b62\u540e\u7eed\u8ba1\u7b97\u3002\u5982\u679c \u6240\u6709\u64cd\u4f5c\u6570\u4e3a\u5047&#xff0c;\u8fd4\u56de \u6700\u540e\u4e00\u4e2a\u5047\u503c<\/td>\n<\/tr>\n<tr>\n<td>not<\/td>\n<td>\u975e&#xff0c;not x&#xff0c;\u82e5x\u4e3aTrue\u8fd4\u56deFalse&#xff0c;\u82e5x\u4e3aFalse\u8fd4\u56deTrue<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>b1 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><br \/>\nb2 <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b1 <span class=\"token keyword\">and<\/span> b2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b1 <span class=\"token keyword\">or<\/span> b2<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">not<\/span><span class=\"token punctuation\">(<\/span>b1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span> <span class=\"token keyword\">and<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># 8 \u975e0\u8868\u793aTrue&#xff0c;0\u8868\u793aFalse \u6700\u540e\u4e00\u4e2a\u4e3a\u771f&#xff0c;\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u771f\u503c<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span> <span class=\"token keyword\">and<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># 0 \u9047\u5230\u5047\u503c \u76f4\u63a5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u5047\u503c&#xff0c;\u505c\u6b62\u540e\u9762\u8ba1\u7b97<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span> <span class=\"token keyword\">or<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># 5 \u9047\u5230\u771f\u503c \u76f4\u63a5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u771f\u503c&#xff0c;\u505c\u6b62\u540e\u9762\u8ba1\u7b97<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span> <span class=\"token keyword\">or<\/span> <span class=\"token number\">8<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># 8 \u9047\u5230\u771f\u503c \u76f4\u63a5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u771f\u503c<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span> <span class=\"token keyword\">or<\/span> <span class=\"token number\">0.0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># 0.0 \u9047\u5230\u4ef7\u503c \u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5047\u503c  <\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">not<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False<\/span><\/p>\n<p><span class=\"token comment\">### \u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token number\">8<\/span><br \/>\n<span class=\"token number\">0<\/span><br \/>\n<span class=\"token number\">5<\/span><br \/>\n<span class=\"token number\">8<\/span><br \/>\n<span class=\"token number\">0.0<\/span><br \/>\n<span class=\"token boolean\">False<\/span><\/p>\n<h4>5. \u6210\u5458\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e\u5b9e\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>in<\/td>\n<td>\u5728\u6307\u5b9a\u7684\u5e8f\u5217\u4e2d\u627e\u5230\u503c\u8fd4\u56de True&#xff0c;\u5426\u5219\u8fd4\u56de False<\/td>\n<td>a in [\u2018a\u2019, \u2018b\u2019, \u2018c\u2019]<\/td>\n<\/tr>\n<tr>\n<td>not in<\/td>\n<td>\u5728\u6307\u5b9a\u7684\u5e8f\u5217\u4e2d\u6ca1\u6709\u627e\u5230\u503c\u8fd4\u56de True&#xff0c;\u5426\u5219\u8fd4\u56de False<\/td>\n<td>a not in [\u2018a\u2019, \u2018b\u2019, \u2018c\u2019]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>num6 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\nnum7 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><br \/>\ntest_list <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>test_list<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num6 <span class=\"token keyword\">in<\/span> test_list<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># True \u5224\u65ad1\u662f\u4e0d\u662f\u5217\u8868\u4e2d\u7684\u7684\u6210\u5458<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>num7 <span class=\"token keyword\">not<\/span> <span class=\"token keyword\">in<\/span> test_list<span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># True<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">True<\/span><\/p>\n<h4>6. \u8eab\u4efd\u8fd0\u7b97\u7b26<\/h4>\n<table>\n<tr>\u8fd0\u7b97\u7b26\u8bf4\u660e\u5b9e\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>is<\/td>\n<td>\u5224\u65ad\u4e24\u4e2a\u6807\u8bc6\u7b26\u662f\u4e0d\u662f\u5f15\u7528\u81ea\u76f8\u540c\u5bf9\u8c61<\/td>\n<td>a is b&#xff0c;\u7c7b\u4f3cid(a) &#061;&#061; id(b)\u3002\u5982\u679c\u5f15\u7528\u7684\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\u5219\u8fd4\u56deTrue&#xff0c;\u5426\u5219\u8fd4\u56deFalse<\/td>\n<\/tr>\n<tr>\n<td>not is<\/td>\n<td>\u5224\u65ad\u4e24\u4e2a\u6807\u8bc6\u7b26\u662f\u4e0d\u662f\u5f15\u7528\u81ea\u4e0d\u540c\u5bf9\u8c61<\/td>\n<td>a is not b&#xff0c;\u7c7b\u4f3cid(a) !&#061; id(b)\u3002\u5982\u679c\u5f15\u7528\u7684\u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61\u5219\u8fd4\u56deTrue&#xff0c;\u5426\u5219\u8fd4\u56deFalse<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span class=\"token comment\"># &#8212;&#8212;&#8212;&#8212;-\u8eab\u4efd\u8fd0\u7b97\u7b26&#8212;&#8212;&#8212;&#8212;&#8212;<\/span><br \/>\nm <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><br \/>\nn <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">20<\/span><br \/>\nq <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">30<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>m <span class=\"token keyword\">is<\/span> n<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True \u5224\u65adm\u548cn\u5728\u5185\u5b58\u4e2d\u662f\u5426\u6307\u5411\u540c\u4e00\u4e2a\u5730\u5740<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>n <span class=\"token keyword\">is<\/span> q<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>n <span class=\"token keyword\">is<\/span> <span class=\"token keyword\">not<\/span> q<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token comment\"># id() \u7528\u4e8e\u83b7\u53d6\u5bf9\u8c61\u5728\u5185\u5b58\u4e2d\u7684\u5730\u5740<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token builtin\">id<\/span><span class=\"token punctuation\">(<\/span>m<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token builtin\">id<\/span><span class=\"token punctuation\">(<\/span>n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\"># True<\/span><\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;-&#034;<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># &#8212;&#8212;&#8212;&#8212;-is\u548c&#061;&#061;\u7684\u533a\u522b&#8212;&#8212;&#8212;&#8212;&#8212;<\/span><br \/>\na <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><br \/>\nb <span class=\"token operator\">&#061;<\/span> a<\/p>\n<p><span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token keyword\">is<\/span> a<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#061;&#061;<\/span> a<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True<\/span><\/p>\n<p>b <span class=\"token operator\">&#061;<\/span> a<span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">:<\/span><span class=\"token punctuation\">]<\/span>  <span class=\"token comment\">#\u7b80\u5355\u5217\u8868\u7684\u590d\u5236<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token keyword\">is<\/span> a<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># False b \u662f\u4e00\u4e2a\u65b0\u7684\u5217\u8868\u5bf9\u8c61&#xff0c;\u548c a \u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61&#xff08;b is a \u8fd4\u56de False&#xff09;<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>b <span class=\"token operator\">&#061;&#061;<\/span> a<span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># True \u4e24\u4e2a\u5217\u8868\u7684\u5143\u7d20\u503c\u662f\u4e00\u6837<\/span><\/p>\n<p><span class=\"token comment\">###\u8f93\u51fa\u7ed3\u679c###<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token operator\">&#8211;<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token boolean\">True<\/span><br \/>\n<span class=\"token punctuation\">[<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token boolean\">False<\/span><br \/>\n<span class=\"token boolean\">True<\/span><\/p>\n<hr \/>\n<h3>\u7b2c\u4e94\u7ae0 \u6d41\u7a0b\u63a7\u5236\u8bed\u53e5<\/h3>\n<h4>1. \u987a\u5e8f<\/h4>\n<p>\u6309\u7167\u7a0b\u5e8f\u6b63\u5e38\u7684\u6267\u884c\u987a\u5e8f&#xff0c;\u4e00\u6761\u7ebf\u76f4\u63a5\u8d70\u5b8c&#xff0c;\u4f9d\u6b21\u6267\u884c\u6bcf\u6761\u8bed\u53e5\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055127-6aaa2e5ff15e8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2. \u5206\u652f<\/h4>\n<p>\u5206\u652f\u6d41\u7a0b\u53c8\u53eb\u6761\u4ef6\u63a7\u5236\u8bed\u53e5\u6216\u8005\u5206\u652f\u8bed\u53e5\u6216\u8005\u9009\u62e9\u8bed\u53e5&#xff0c;\u662f\u901a\u8fc7\u6761\u4ef6\u5224\u65ad\u6765\u51b3\u5b9a\u6267\u884c\u7684\u4ee3\u7801\u3002\u4e00\u6761\u7ebf\u4e0d\u80fd\u76f4\u63a5\u8d70\u5b8c\u3002<\/p>\n<h5>2.1 \u5355\u5206\u652f<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055128-6aaa2e601ac2b.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token punctuation\">:<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e5<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>Python\u7a0b\u5e8f\u8bed\u8a00\u6307\u5b9a\u4efb\u4f55\u975e0\u548c\u975e\u7a7a&#xff08;null&#xff09;\u503c\u4e3aTrue&#xff0c;0 \u6216\u8005 null\u4e3aFalse\u3002<\/p>\n<p>if\u8bed\u53e5\u7684\u5224\u65ad\u6761\u4ef6\u53ef\u4ee5\u7528\u6761\u4ef6\u8868\u8fbe\u5f0f\u6765\u8868\u793a\u5176\u5173\u7cfb&#xff0c;\u540e\u9762\u7684:\u5fc5\u987b\u52a0\u3002\u5176\u4e2d&#034;\u5224\u65ad\u6761\u4ef6&#034;\u6210\u7acb\u65f6&#xff08;\u975e\u96f6&#xff09;&#xff0c;\u5219\u6267\u884c\u540e\u9762\u7684\u8bed\u53e5&#xff0c;\u800c\u6267\u884c\u5185\u5bb9\u53ef\u4ee5\u591a\u884c&#xff0c;\u4ee5\u7f29\u8fdb\u6765\u533a\u5206\u8868\u793a\u540c\u4e00\u8303\u56f4&#xff0c;\u7f29\u8fdb\u53d6\u6d88\u540e&#xff0c;\u5c31\u4e0d\u5728\u5206\u652f\u8303\u56f4\u4e86\u3002\u5982\u679c\u6761\u4ef6\u4e0d\u6210\u7acb&#xff0c;\u4e0d\u6267\u884c\u8bed\u53e5\u5757\u5185\u5bb9\u3002<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u5546\u54c1\u4ef7\u683c50&#xff0c;\u82e5\u4f59\u989d\u5c0f\u4e8e50\u5219\u63d0\u793a\u201c\u4f59\u989d\u4e0d\u8db3&#xff0c;\u8bf7\u5145\u503c\u201d&#xff0c;\u6700\u540e\u6253\u5370\u201c\u6b22\u8fce\u4e0b\u6b21\u5149\u4e34\u201d\u3002<\/p>\n<\/li>\n<\/ul>\n<p><span class=\"token keyword\">from<\/span> random <span class=\"token keyword\">import<\/span> randint<\/p>\n<p><span class=\"token comment\"># \u4f59\u989d<\/span><br \/>\nbalance <span class=\"token operator\">&#061;<\/span> randint<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u4ef7\u683c<\/span><br \/>\nprice <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">50<\/span><br \/>\n<span class=\"token comment\"># \u6253\u5370\u4f59\u989d<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u4f59\u989d&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>balance<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u6bd4\u8f83\u4f59\u989d\u548c\u4ef7\u683c<\/span><br \/>\n<span class=\"token keyword\">if<\/span> balance <span class=\"token operator\">&lt;<\/span> price<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4f59\u989d\u4e0d\u8db3&#xff0c;\u8bf7\u5145\u503c&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6b22\u8fce\u4e0b\u6b21\u5149\u4e34&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u7b80\u5355\u7684\u8bed\u53e5\u7ec4:\u4f60\u4e5f\u53ef\u4ee5\u5728\u540c\u4e00\u884c\u7684\u4f4d\u7f6e\u4e0a\u4f7f\u7528if\u6761\u4ef6\u5224\u65ad\u8bed\u53e5&#xff0c;\u4f8b\u5982<\/span><br \/>\nvar <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">100<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span> var  <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">100<\/span> <span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">:<\/span> <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u53d8\u91cf var \u7684\u503c\u4e3a100&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h5>2.2 \u53cc\u5206\u652f<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055128-6aaa2e6041408.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token punctuation\">:<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e51<\/span><\/p>\n<p><span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e52<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>\u5148\u8fdb\u884c\u6761\u4ef6\u5224\u65ad&#xff0c;\u5982\u679c\u6761\u4ef6\u5224\u65ad\u6210\u7acb\u5c31\u6267\u884cstep1&#xff0c; \u6761\u4ef6\u4e0d\u6210\u7acb\u5c31\u6267\u884cstep2<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u4f59\u989d\u968f\u673a&#xff0c;\u5546\u54c1\u4ef7\u683c50\u3002<\/p>\n<p>\u82e5\u4f59\u989d\u5c0f\u4e8e50\u5219\u63d0\u793a\u201c\u4f59\u989d\u4e0d\u8db3&#xff0c;\u8bf7\u5145\u503c\u201d\u3002<\/p>\n<p>\u5426\u5219\u63d0\u793a\u6d88\u8d39\u6210\u529f\u3002<\/p>\n<p>\u6700\u540e\u6253\u5370\u201c\u6b22\u8fce\u4e0b\u6b21\u5149\u4e34\u201d\u3002<\/p>\n<p> <span class=\"token keyword\">from<\/span> random <span class=\"token keyword\">import<\/span> randint<\/p>\n<p><span class=\"token comment\"># \u4f59\u989d<\/span><br \/>\nbalance <span class=\"token operator\">&#061;<\/span> randint<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u4ef7\u683c<\/span><br \/>\nprice <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">50<\/span><br \/>\n<span class=\"token comment\"># \u6253\u5370\u4f59\u989d<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u4f59\u989d&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>balance<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u6bd4\u8f83\u4f59\u989d\u548c\u4ef7\u683c<\/span><br \/>\n<span class=\"token keyword\">if<\/span> balance <span class=\"token operator\">&lt;<\/span> price<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c\u4f59\u989d\u5c0f\u4e8e\u4ef7\u683c<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4f59\u989d\u4e0d\u8db3&#xff0c;\u8bf7\u5145\u503c&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c\u4f59\u989d\u5927\u4e8e\u4ef7\u683c<\/span><br \/>\n    balance <span class=\"token operator\">&#061;<\/span> balance <span class=\"token operator\">&#8211;<\/span> price<br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u6d88\u8d39\u6210\u529f&#xff0c;\u4f59\u989d&#xff1a;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>balance<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6b22\u8fce\u4e0b\u6b21\u5149\u4e34&#034;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h5>2.3 \u591a\u5206\u652f<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055128-6aaa2e60798f8.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token number\">1<\/span><span class=\"token punctuation\">:<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e51 # \u6761\u4ef61\u6ee1\u8db3\u65f6\u6267\u884c<\/span><\/p>\n<p><span class=\"token keyword\">elif<\/span> \u6761\u4ef6<span class=\"token number\">2<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token comment\">#\u6761\u4ef61\u4e0d\u6ee1\u8db3\u65f6\u68c0\u67e5\u6761\u4ef62<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e52   # \u6761\u4ef62\u6ee1\u8db3\u65f6\u6267\u884c<\/span><\/p>\n<p><span class=\"token keyword\">elif<\/span> \u6761\u4ef6<span class=\"token number\">3<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token comment\">#\u6761\u4ef61\u6761\u4ef62\u90fd\u4e0d\u6ee1\u8db3\u65f6\u68c0\u67e5\u6761\u4ef63<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e53 # \u6761\u4ef62\u6ee1\u8db3\u65f6\u6267\u884c<\/span><\/p>\n<p><span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># else\u5982\u4e0d\u9700\u8981\u53ef\u4ee5\u7701\u7565 #\u6240\u6709\u6761\u4ef6\u90fd\u4e0d\u6ee1\u8db3\u6267\u884c<\/span><\/p>\n<p>  <span class=\"token comment\"># \u8bed\u53e54<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>if \u8bed\u53e5\u540e\u9762\u53ef\u4ee5\u8ddf elif\u2026else \u8bed\u53e5&#xff0c;\u8fd9\u79cd\u8bed\u53e5\u53ef\u4ee5\u68c0\u6d4b\u5230\u591a\u79cd\u53ef\u80fd\u7684\u60c5\u51b5&#xff0c;\u6240\u4ee5\u4e5f\u79f0\u4e4b\u4e3a\u591a\u5206\u652f\u7ed3\u6784\u3002<\/p>\n<p>\u5982\u679c\u6761\u4ef6\u5224\u65ad1\u6210\u7acb&#xff0c;\u90a3\u4e48\u6267\u884c\u8bed\u53e5\u57571\u7684\u5185\u5bb9&#xff1b;\u5982\u679c\u6761\u4ef6\u5224\u65ad2\u6210\u7acb&#xff0c;\u90a3\u4e48\u6267\u884c\u8bed\u53e5\u57572\u7684\u5185\u5bb9&#xff1b;\u5982\u679c\u6761\u4ef6\u5224\u65ad3\u6210\u7acb&#xff0c;\u90a3\u4e48\u6267\u884c\u8bed\u53e5\u57573\u7684\u5185\u5bb9&#xff1b;\u5982\u679c\u6761\u4ef6\u5224\u65ad1&#xff0c;2&#xff0c;3\u90fd\u4e0d\u6210\u7acb&#xff0c;\u90a3\u4e48\u6267\u884c\u8bed\u53e5\u57574\u7684\u5185\u5bb9&#xff1b;<\/p>\n<p>\u4f7f\u7528\u591a\u5206\u652f\u8bed\u53e5\u7684\u65f6\u5019&#xff0c;\u9700\u8981\u6ce8\u610f\u4e0b\u9762\u51e0\u70b9&#xff1a;<\/p>\n<p>1&#xff09; if \u8bed\u53e5\u81f3\u591a\u67091\u4e2aelse\u8bed\u53e5&#xff0c;else\u8bed\u53e5\u5728\u6240\u6709\u7684else if\u8bed\u53e5\u4e4b\u540e\u3002<\/p>\n<p>2&#xff09;if\u8bed\u53e5\u53ef\u4ee5\u6709\u82e5\u5e72\u4e2a elif \u8bed\u53e5&#xff0c;\u5b83\u4eec\u5fc5\u987b\u5728else\u8bed\u53e5\u4e4b\u524d\u3002<\/p>\n<p>3&#xff09;\u4e00\u65e6\u5176\u4e2d\u4e00\u4e2a\u5206\u652f\u8bed\u53e5\u68c0\u6d4b\u4e3a true&#xff0c;\u5176\u4ed6\u7684elif\u4ee5\u53caelse\u8bed\u53e5\u90fd\u5c06\u4e0d\u518d\u6267\u884c\u3002<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u5224\u65ad\u5904\u4e8e\u4eba\u751f\u54ea\u4e2a\u9636\u6bb5\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u5c0f\u4e8e2\u5c81&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u5a74\u513f\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u4e3a2&#xff08;\u542b&#xff09;&#xff5e;4\u5c81&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u5e7c\u513f\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u4e3a4&#xff08;\u542b&#xff09;&#xff5e;13\u5c81&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u513f\u7ae5\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u4e3a13&#xff08;\u542b&#xff09;&#xff5e;20\u5c81&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u9752\u5c11\u5e74\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u4e3a20&#xff08;\u542b&#xff09;&#xff5e;65\u5c81&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u6210\u5e74\u4eba\u3002<\/p>\n<p>\u2192\u5982\u679c\u5e74\u9f84\u8d85\u8fc765\u5c81&#xff08;\u542b&#xff09;&#xff0c;\u5c31\u6253\u5370\u4e00\u6761\u6d88\u606f&#xff0c;\u6307\u51fa\u8fd9\u4e2a\u4eba\u662f\u8001\u5e74\u4eba\u3002<\/p>\n<p> <span class=\"token keyword\">from<\/span> random <span class=\"token keyword\">import<\/span> randint<\/p>\n<p><span class=\"token comment\"># \u5b9a\u4e49\u5e74\u9f84\u5e76\u6253\u5370<\/span><br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6b64\u4eba\u5e74\u9f84\u4e3a&#034;<\/span><span class=\"token punctuation\">,<\/span> age <span class=\"token operator\">:&#061;<\/span> randint<span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> age <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c\u5e74\u9f84&lt;2<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u5a74\u513f&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">elif<\/span> age <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c2&lt;&#061;\u5e74\u9f84&lt;4<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u5e7c\u513f&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">elif<\/span> age <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">13<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c4&lt;&#061;\u5e74\u9f84&lt;13<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u513f\u7ae5&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">elif<\/span> age <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">20<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c13&lt;&#061;\u5e74\u9f84&lt;20<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u9752\u5c11\u5e74&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">elif<\/span> age <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">65<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u5982\u679c20&lt;&#061;\u5e74\u9f84&lt;65<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u6210\u5e74\u4eba&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\"># \u5982\u679c65&gt;&#061;\u5e74\u9f84<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fd9\u662f\u4e2a\u8001\u4eba&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<\/li>\n<\/ul>\n<h5>2.4 \u5d4c\u5957\u5206\u652f<\/h5>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055128-6aaa2e60d65b9.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token number\">1<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token number\">2<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token comment\"># \u5d4c\u5957\u5728\u6761\u4ef61\u5185\u90e8<\/span><br \/>\n       <span class=\"token comment\"># \u8bed\u53e51 # \u6761\u4ef61\u548c\u6761\u4ef62\u540c\u65f6\u6ee1\u8db3\u65f6\u6267\u884c<\/span><br \/>\n    <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n       <span class=\"token comment\"># \u8bed\u53e52 # \u6761\u4ef61\u6ee1\u8db3\u4f46\u6761\u4ef62\u4e0d\u6ee1\u8db3\u65f6\u6267\u884c<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token comment\"># \u6761\u4ef61\u4e0d\u6ee1\u8db3\u65f6\u6267\u884c<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> \u6761\u4ef6<span class=\"token number\">3<\/span><span class=\"token punctuation\">:<\/span><br \/>\n       <span class=\"token comment\"># \u8bed\u53e53 #\u6761\u4ef61\u4e0d\u6ee1\u8db3\u6761\u4ef63\u6ee1\u8db3\u65f6\u6267\u884c<\/span><br \/>\n    <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n       <span class=\"token comment\"># \u8bed\u53e54 #\u6761\u4ef61\u4e0d\u6ee1\u8db3\u6761\u4ef63\u4e0d\u6ee1\u8db3\u65f6\u6267\u884c<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>\u5728\u4e00\u4e2aif\u8bed\u53e5\u4e2d&#xff0c;\u53c8\u5305\u542b\u53e6\u5916\u4e00\u4e2aif\u8bed\u53e5&#xff0c;\u8fd9\u5c31\u662fif\u8bed\u53e5\u7684\u5d4c\u5957<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u7528\u6237\u6743\u9650\u68c0\u67e5,\u5982\u679c\u662f\u7ba1\u7406\u5458&#xff0c;\u8fdb\u4e00\u6b65\u5224\u65ad\u662f\u5426\u6709\u6743\u9650&#xff0c;\u5bf9\u5e94\u4e0d\u540c\u7ba1\u7406\u5458\u6743\u9650\u64cd\u4f5c&#xff0c;\u5982\u679c\u4e0d\u662f\u666e\u901a\u7528\u6237&#xff0c;\u4e5f\u8fdb\u4e00\u6b65\u5224\u65ad\u662f\u5426\u6709\u6743\u9650&#xff0c;\u5bf9\u5e94\u4e0d\u540c\u666e\u901a\u6743\u9650\u64cd\u4f5c<\/p>\n<p> is_admin <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">False<\/span><br \/>\nis_verified <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">True<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> is_admin<span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u5916\u5c42\u6761\u4ef6<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> is_verified<span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u5185\u5c42\u6761\u4ef6<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ba1\u7406\u5458\u4e14\u5df2\u9a8c\u8bc1&#xff0c;\u5141\u8bb8\u8bbf\u95ee\u6240\u6709\u529f\u80fd&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bed\u53e51<\/span><br \/>\n    <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7ba1\u7406\u5458\u672a\u9a8c\u8bc1&#xff0c;\u4ec5\u5f00\u653e\u90e8\u5206\u529f\u80fd&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bed\u53e52<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> is_verified<span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u5185\u5c42\u6761\u4ef6<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u666e\u901a\u7528\u6237\u5df2\u9a8c\u8bc1&#xff0c;\u5141\u8bb8\u57fa\u7840\u64cd\u4f5c&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bed\u53e53<\/span><br \/>\n    <span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u672a\u9a8c\u8bc1\u7528\u6237&#xff0c;\u7981\u6b62\u8bbf\u95ee&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bed\u53e54<\/span>\n <\/li>\n<\/ul>\n<h5>2.5 match case\u8bed\u53e5<\/h5>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">match<\/span> x<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> a<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u8bed\u53e51<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> b<span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u8bed\u53e52<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token keyword\">_<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token comment\"># \u8bed\u53e53<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>Python3.10\u65b0\u589e\u4e86match case\u7684\u6761\u4ef6\u5224\u65ad\u65b9\u5f0f&#xff0c;match\u540e\u7684\u5bf9\u8c61\u4f1a\u4f9d\u6b21\u4e0ecase\u540e\u7684\u5185\u5bb9\u5339\u914d&#xff0c;\u5339\u914d\u6210\u529f\u5219\u6267\u884c\u76f8\u5e94\u8bed\u53e5&#xff0c;\u5426\u5219\u8df3\u8fc7\u3002\u5176\u4e2d_\u53ef\u4ee5\u5339\u914d\u4e00\u5207\u3002match \u540e\u7684\u5bf9\u8c61\u53ef\u4ee5\u662f\u4efb\u4f55 Python \u7c7b\u578b\u3002<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u7ed9\u5b9a\u6708\u4efd&#xff0c;\u6c42\u8be5\u6708\u6709\u591a\u5c11\u5929\u3002<\/p>\n<p>| \u662f\u4e13\u95e8\u7528\u4e8e\u6a21\u5f0f\u5339\u914d\u7684\u64cd\u4f5c\u7b26&#xff0c;\u5b83\u80fd\u628a\u591a\u4e2a\u5e38\u91cf\u6216\u8005\u6a21\u5f0f\u7ec4\u5408\u8d77\u6765&#xff0c;\u5b9e\u73b0 \u201c\u6216\u201d \u903b\u8f91\u3002<\/p>\n<p> <span class=\"token comment\"># \u5339\u914d\u57fa\u672c\u7c7b\u578b<\/span><br \/>\n<span class=\"token keyword\">match<\/span> month <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token number\">1<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">3<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">5<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">7<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">8<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">10<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">12<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>month<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u6708\u670931\u5929&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token number\">4<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">6<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">9<\/span> <span class=\"token operator\">|<\/span> <span class=\"token number\">11<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>month<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u6708\u670930\u5929&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>month<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u6708\u53ef\u80fd\u670928\u5929&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token keyword\">_<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>month<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u6708\u6709?\u5929&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u5339\u914d\u6570\u636e\u7c7b\u578b        <\/span><br \/>\nvalue <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3.14<\/span><br \/>\n<span class=\"token keyword\">match<\/span> value<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6574\u6570&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token builtin\">float<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6d6e\u70b9\u6570&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa: \u6d6e\u70b9\u6570     <\/span><\/p>\n<p><span class=\"token comment\"># \u5339\u914d\u5b57\u5178\u7c7b\u578b<\/span><br \/>\ndata <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;Alice&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">match<\/span> data<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">str<\/span><span class=\"token punctuation\">(<\/span>name<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">(<\/span>age<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u7c7b\u578b&#043;\u89e3\u6784&#xff08;\u5339\u914d\u7ed3\u6784 &#043; \u63d0\u53d6\u53d8\u91cf\u201d&#xff09;<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>age<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u5c81&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8f93\u51fa: Alice, 30\u5c81<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token keyword\">_<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u672a\u77e5\u683c\u5f0f&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u89e3\u6784\u6a21\u5f0fvs\u4f20\u7edf\u6a21\u5f0f<\/p>\n<p> data <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token string\">&#034;Alice&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">30<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">if<\/span> <span class=\"token string\">&#034;name&#034;<\/span> <span class=\"token keyword\">in<\/span> data <span class=\"token keyword\">and<\/span> <span class=\"token string\">&#034;age&#034;<\/span> <span class=\"token keyword\">in<\/span> data<span class=\"token punctuation\">:<\/span><br \/>\n    name <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    age <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u59d3\u540d: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, \u5e74\u9f84: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>age<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e0d\u5339\u914d&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">match<\/span> data<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;name&#034;<\/span><span class=\"token punctuation\">:<\/span> name<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;age&#034;<\/span><span class=\"token punctuation\">:<\/span> age<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u59d3\u540d: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>name<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">, \u5e74\u9f84: <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>age<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">case<\/span> <span class=\"token keyword\">_<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u4e0d\u5339\u914d&#034;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h5>2.6 \u4e09\u76ee\u8fd0\u7b97\u7b26<\/h5>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> \u8868\u8fbe\u5f0f<span class=\"token number\">1<\/span> <span class=\"token keyword\">if<\/span> \u5224\u65ad\u6761\u4ef6 <span class=\"token keyword\">else<\/span> \u8868\u8fbe\u5f0f<span class=\"token number\">2<\/span>\n <\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p> num1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><br \/>\nnum2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><br \/>\n<span class=\"token keyword\">if<\/span> num1 <span class=\"token operator\">&gt;<\/span> num2<span class=\"token punctuation\">:<\/span><br \/>\n    max_num <span class=\"token operator\">&#061;<\/span> num1<br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    max_num <span class=\"token operator\">&#061;<\/span> num2<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>max_num<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u4f7f\u7528\u4e09\u76ee\u8fd0\u7b97\u7b26<\/span><br \/>\nnum1 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><br \/>\nnum2 <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">3<\/span><br \/>\nmax_num <span class=\"token operator\">&#061;<\/span> num1 <span class=\"token keyword\">if<\/span> num1 <span class=\"token operator\">&gt;<\/span> num2 <span class=\"token keyword\">else<\/span> num2<br \/>\n<span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>max_num<span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h4>3 .\u5faa\u73af<\/h4>\n<h5>3.1 while\u5faa\u73af<\/h5>\n<p>\u5728\u6ee1\u8db3\u67d0\u4e2a\u6761\u4ef6\u4e0b&#xff0c;\u91cd\u590d\u7684\u6267\u884c\u67d0\u6bb5\u4ee3\u7801\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055129-6aaa2e613fcae.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u6ce8\u610f&#xff1a;python\u4e2d\u6ca1\u6709 do&#8230;while&#xff0c;\u5373 \u201c\u5148\u6267\u884c\u4e00\u6b21&#xff0c;\u518d\u68c0\u67e5\u6761\u4ef6\u201d \u7684\u8bed\u6cd5&#xff0c;\u4f46\u53ef\u4ee5\u7528 while True &#043; break \u6a21\u62df\u5b83\u7684\u884c\u4e3a&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">while<\/span> \u8868\u8fbe\u5f0f<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u8bed\u53e5-\u5faa\u73af\u4f53<\/span><br \/>\n<span class=\"token comment\"># \u6216\u8005\u642d\u914delse\u4f7f\u7528    <\/span><br \/>\n<span class=\"token keyword\">while<\/span> \u8868\u8fbe\u5f0f&#xff1a;<br \/>\n    <span class=\"token comment\"># \u8bed\u53e5-\u5faa\u73af\u4f53<\/span><br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n    <span class=\"token comment\"># \u8bed\u53e5<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>\u5148\u5224\u65ad\u6761\u4ef6\u662f\u5426\u6210\u7acb&#xff0c;\u5982\u679c\u6761\u4ef6\u6210\u7acb\u5c31\u6267\u884c\u5faa\u73af\u4f53\u4e00\u6b21&#xff1b;\u7136\u540e\u518d\u5224\u65ad\u6761\u4ef6\u662f\u5426\u6210\u7acb&#xff0c;\u5982\u679c\u6210\u7acb&#xff0c;\u7ee7\u7eed\u6267\u884c\u5faa\u73af\u4f53&#xff0c;\u76f4\u5230\u5faa\u73af\u6761\u4ef6\u4e0d\u6210\u7acb\u7684\u65f6\u5019&#xff0c;\u624d\u4f1a\u7ed3\u675f\u5faa\u73af&#xff0c;\u6267\u884c\u5faa\u73af\u4e0b\u9762\u7684\u5176\u4ed6\u8bed\u53e5\u3002\u5224\u65ad\u6761\u4ef6\u53ef\u4ee5\u662f\u4efb\u4f55\u8868\u8fbe\u5f0f&#xff0c;\u4efb\u4f55\u975e\u96f6\u3001\u6216\u975e\u7a7a&#xff08;null&#xff09;\u7684\u503c\u5747\u4e3atrue\u3002\u6267\u884c\u8bed\u53e5\u53ef\u4ee5\u662f\u5355\u4e2a\u8bed\u53e5\u6216\u8bed\u53e5\u5757\u3002<\/p>\n<p>\u5982\u679c\u6761\u4ef6\u8868\u8fbe\u5f0f\u4e00\u76f4\u6210\u7acb&#xff0c;\u90a3\u79f0\u4e4b\u4e3a\u65e0\u9650\u5faa\u73af&#xff0c;\u4e5f\u53eb\u6b7b\u5faa\u73af\u3002<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b1<\/p>\n<p> <span class=\"token keyword\">import<\/span> time<br \/>\nnum <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n<span class=\"token keyword\">while<\/span> num <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\\\\r&#034;<\/span> <span class=\"token operator\">&#043;<\/span> <span class=\"token string\">&#034;&#061;&#034;<\/span> <span class=\"token operator\">*<\/span> num<span class=\"token punctuation\">,<\/span>end<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;&#034;<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \\\\r \u56de\u5230\u884c\u9996&#xff0c;\u8986\u76d6\u4e0a\u6b21\u8f93\u51fa<\/span><br \/>\n    num <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">0.05<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u63a7\u5236\u8fdb\u5ea6\u6761\u901f\u5ea6<\/span>\n <\/li>\n<li>\n<p>\u6848\u4f8b2&#xff1a;<\/p>\n<p>\u7b2c1\u5468\u67092\u53ea\u5154\u5b50&#xff0c;\u6b64\u540e\u6bcf\u5468\u5154\u5b50\u7684\u6570\u91cf\u90fd\u589e\u52a0\u4e0a\u5468\u6570\u91cf\u76842\u500d&#xff0c;\u4e14\u671f\u95f4\u6ca1\u6709\u5154\u5b50\u6b7b\u4ea1&#xff0c;\u6c42\u7b2c10\u5468\u5171\u6709\u591a\u5c11\u53ea\u5154\u5b50<\/p>\n<p> rabbit <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">2<\/span><br \/>\nweek <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n<span class=\"token keyword\">while<\/span> week <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    rabbit <span class=\"token operator\">&#061;<\/span> rabbit <span class=\"token operator\">&#043;<\/span> rabbit <span class=\"token operator\">*<\/span> <span class=\"token number\">2<\/span><br \/>\n    week <span class=\"token operator\">&#043;&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n     <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;\u7b2c<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>week<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u5468\u6709<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>rabbit<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">\u53ea\u5154\u5b50&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>\u4e0d\u8fc7\u6b64\u65f6else\u4e2d\u4ee3\u7801&#xff0c;\u5199\u5728else\u4e2d\u548c\u5199\u5728\u5faa\u73af\u5916\u6548\u679c\u4e00\u6837\u3002<\/p>\n<\/li>\n<li>\n<p>\u6848\u4f8b3&#xff1a;<\/p>\n<p>\u5f53\u7528\u6237\u8f93\u5165quit\u9000\u51fa\u5faa\u73af,\u6a21\u62dfdo\u2026while\u2026<\/p>\n<p> <span class=\"token keyword\">while<\/span> <span class=\"token boolean\">True<\/span><span class=\"token punctuation\">:<\/span>  <span class=\"token comment\"># \u65e0\u6761\u4ef6\u8fdb\u5165\u5faa\u73af<\/span><br \/>\n    <span class=\"token comment\"># \u5148\u6267\u884c\u4e00\u6b21\u4ee3\u7801<\/span><br \/>\n    user_input <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">input<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8bf7\u8f93\u5165 &#039;quit&#039; \u9000\u51fa: &#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> user_input <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#034;quit&#034;<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">break<\/span>  <span class=\"token comment\"># \u6ee1\u8db3\u6761\u4ef6\u65f6\u9000\u51fa<\/span>\n <\/li>\n<\/ul>\n<h5>3.2 for\u5faa\u73af<\/h5>\n<p>for \u5faa\u73af\u53ef\u4ee5\u7528\u6765\u904d\u5386\u53ef\u8fed\u4ee3\u5bf9\u8c61&#xff0c;\u5982\u5217\u8868\u6216\u5b57\u7b26\u4e32\u3002<\/p>\n<p>for \u5faa\u73af\u540e\u4e5f\u53ef\u4ee5\u52a0\u4e0a else&#xff0c;\u5faa\u73af\u7ed3\u675f\u540e\u4f1a\u6267\u884c else \u4e2d\u8bed\u53e5\u3002<\/p>\n<ul>\n<li>\n<p>\u8bed\u6cd5<\/p>\n<p> <span class=\"token keyword\">for<\/span> \u4e34\u65f6\u53d8\u91cf <span class=\"token keyword\">in<\/span> \u53ef\u8fed\u4ee3\u5bf9\u8c61<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u8bed\u53e5<\/span><br \/>\n <span class=\"token keyword\">for<\/span> \u4e34\u65f6\u53d8\u91cf <span class=\"token keyword\">in<\/span> \u53ef\u8fed\u4ee3\u5bf9\u8c61<span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u8bed\u53e51<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token comment\"># \u8bed\u53e52<\/span>\n <\/li>\n<li>\n<p>\u8bf4\u660e<\/p>\n<p>\u5173\u952e\u5b57\u8bf4\u660e&#xff1a;<\/p>\n<ul>\n<li>for\u662f\u5173\u952e\u5b57<\/li>\n<li>\u4e34\u65f6\u53d8\u91cf\u662f\u81ea\u5df1\u5b9a\u4e49\u7684\u7528\u6765\u5b58\u50a8\u904d\u5386\u51fa\u6765\u5143\u7d20\u7684\u53d8\u91cf\u540d\u5b57<\/li>\n<li>in\u662f\u5173\u952e\u5b57<\/li>\n<li>\u53ef\u8fed\u4ee3\u5bf9\u8c61\u662f\u8981\u904d\u5386\u7684\u5e8f\u5217<\/li>\n<li>: \u5fc5\u987b\u8981\u6709<\/li>\n<\/ul>\n<p>\u8fd0\u884c\u6d41\u7a0b&#xff1a;<\/p>\n<ul>\n<li>\u9996\u5148\u5224\u65ad\u662f\u5426\u6709\u4e0b\u4e00\u4e2a\u5143\u7d20\u53ef\u4ee5\u83b7\u53d6<\/li>\n<li>\u5982\u679c\u6709&#xff0c;\u5219\u5c06\u5143\u7d20\u53d6\u51fa&#xff0c;\u8d4b\u503c\u7ed9\u4e34\u65f6\u53d8\u91cf<\/li>\n<li>\u7ee7\u7eed\u5224\u65ad\u662f\u5426\u6709\u4e0b\u4e00\u4e2a\u5143\u7d20\u53ef\u4ee5\u8fdb\u884c\u53d6\u51fa<\/li>\n<li>\u76f4\u5230\u5c06\u6240\u6709\u5143\u7d20\u90fd\u53d6\u51fa&#xff0c;\u5faa\u73af\u7ed3\u675f<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>&#xff08;1&#xff09;\u904d\u5386\u5217\u8868<\/p>\n<p> <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">7<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">11<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">13<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">17<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">19<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><\/p>\n<p>&#xff08;2&#xff09;\u904d\u5386\u5b57\u7b26\u4e32<\/p>\n<p> <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token string\">&#034;hello world&#034;<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><\/p>\n<p>&#xff08;3&#xff09;\u904d\u5386range\u6570\u5217<\/p>\n<p> <span class=\"token comment\">#  range(10) \u751f\u6210\u4e00\u4e2a\u4ece 0 \u5f00\u59cb\u5230 9 \u7ed3\u675f\u7684\u6574\u6570\u5e8f\u5217&#xff08;\u5171 10 \u4e2a\u6570\u5b57&#xff09;&#xff0c;\u4e0d\u5305\u542b 10 \u672c\u8eab\u3002<\/span><br \/>\n<span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\"># \u6307\u5b9a\u751f\u6210\u6570\u5217\u7684\u8303\u56f4&#xff0c;\u4ecestart\u5230stop&#xff08;\u4e0d\u5305\u542bstop&#xff09;&#xff0c;\u53ef\u8bbe\u5b9a\u6b65\u957f&#xff0c;\u9ed8\u8ba4\u6b65\u957f\u4e3a1&#xff0c;\u6b65\u957f\u53ef\u6b63\u53ef\u8d1f\u3002   <\/span><br \/>\n<span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&#8211;<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&#8211;<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><\/p>\n<p>(4) \u5d4c\u5957\u5faa\u73af<\/p>\n<p>\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u6253\u5370\u4e5d\u4e5d\u4e58\u6cd5\u8868\u3002<\/p>\n<p> <span class=\"token keyword\">for<\/span> row <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> col <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> row <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string-interpolation\"><span class=\"token string\">f&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>row<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> \u00d7 <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>col<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\"> &#061; <\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span>row <span class=\"token operator\">*<\/span> col<span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">,<\/span> end<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\\\\t&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>end<span class=\"token operator\">&#061;<\/span><span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h5>3.3 continue<\/h5>\n<p>\u8df3\u8fc7\u5f53\u524d\u5faa\u73af\u5757\u4e2d\u7684\u5269\u4f59\u8bed\u53e5&#xff0c;\u7ee7\u7eed\u8fdb\u884c\u4e0b\u4e00\u8f6e\u5faa\u73af\u3002\u4e00\u822c\u5199\u5728if\u5224\u65ad\u4e2d\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260916055129-6aaa2e6171331.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<ul>\n<li>\n<p>\u6848\u4f8b<\/p>\n<p>\u6253\u53700-9&#xff0c;\u8df3\u8fc7\u5076\u6570\u3002<\/p>\n<p> <span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> i <span class=\"token operator\">%<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">continue<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h5>3.4 break<\/h5>\n<p>\u8df3\u51fa\u5f53\u524dfor\u6216while\u7684\u5faa\u73af\u4f53&#xff0c;\u4e00\u822c\u5199\u5728if\u5224\u65ad\u4e2d\u3002\u5982\u679cfor \u6216while\u5faa\u73af\u901a\u8fc7break\u7ec8\u6b62&#xff0c;\u5faa\u73af\u5bf9\u5e94\u7684else \u5c06\u4e0d\u6267\u884c\u3002<\/p>\n<ul>\n<li>\n<p>\u6848\u4f8b&#xff1a;<\/p>\n<p>\u6c420-9\u6bcf\u4e2a\u6570\u81ea\u5df1\u5e42\u81ea\u5df1\u7684\u52a0\u548c&#xff0c;\u5982\u679c\u5927\u4e8e10000000\u5219\u5faa\u73af\u7ec8\u6b62<\/p>\n<p>Sum&#061;0<sup>0&#043;1<\/sup>1&#043;2<sup>2&#043;3<\/sup>3&#043;\u22ef&#043;9^9&gt;10000000<\/p>\n<p> <span class=\"token builtin\">sum<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><br \/>\n<span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token builtin\">sum<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token builtin\">sum<\/span> <span class=\"token operator\">&#043;<\/span> i<span class=\"token operator\">**<\/span>i<br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token builtin\">sum<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">10000000<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token keyword\">break<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">sum<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">else<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5faa\u73af\u5b8c\u6210,sum &#061; &#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token builtin\">sum<\/span><span class=\"token punctuation\">)<\/span>\n <\/li>\n<\/ul>\n<h5>3.5 pass<\/h5>\n<p>pass\u662f\u7a7a\u8bed\u53e5&#xff0c;\u662f\u4e3a\u4e86\u4fdd\u6301\u7a0b\u5e8f\u7ed3\u6784\u7684\u5b8c\u6574\u6027\u3002<\/p>\n<p>pass\u4e0d\u505a\u4efb\u4f55\u4e8b\u60c5&#xff0c;\u4e00\u822c\u7528\u505a\u5360\u4f4d\u8bed\u53e5\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;\u5728\u4e00\u4e2a\u5faa\u73af\u4e2d&#xff0c;\u5982\u679c\u5faa\u73af\u4f53\u4e3a\u7a7a&#xff0c;\u8bed\u6cd5\u4f1a\u63d0\u793a\u62a5\u9519&#xff0c;<\/p>\n<p>\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u5c31\u53ef\u4ee5\u4f7f\u7528pass\u5360\u4f4d<\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token keyword\">in<\/span> <span class=\"token builtin\">range<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">pass<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b2c\u4e00\u7ae0 Python\u7684\u4ecb\u7ecd<br \/>\n1. Python\u662f\u4ec0\u4e48<br \/>\n\u200b Python\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u89e3\u91ca\u578b\u3001\u9ad8\u7ea7\u548c\u901a\u7528\u7684\u7f16\u7a0b\u8bed\u8a00\u3002Python\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8303\u578b&#xff0c;\u5305\u62ec\u7ed3\u6784\u5316\u3001\u8fc7\u7a0b\u5f0f\u3001\u53cd\u5c04\u5f0f\u3001\u9762\u5411\u5bf9\u8c61\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\u3002\u5b83\u62e5\u6709\u52a8\u6001\u7c7b\u578b\u7cfb\u7edf\u548c\u5783\u573e\u56de\u6536\u529f\u80fd&#xff0c;\u80fd\u591f\u81ea\u52a8\u7ba1\u7406\u5185\u5b58\u4f7f\u7528&#xff0c;\u5e76\u4e14\u5176\u672c\u8eab\u62e5\u6709\u4e00\u4e2a\u5de8\u5927\u800c\u5e7f\u6cdb\u7684\u6807\u51c6\u5e93\u3002\u5b83\u7684\u8bed\u8a00\u7ed3\u6784\u4ee5\u53ca\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u6cd5&#xff0c;\u65e8\u5728\u5e2e\u52a9\u7a0b\u5e8f\u5458\u4e3a\u5c0f\u578b\u7684\u548c\u5927\u578b\u7684\u9879\u76ee\u7f16\u5199\u903b\u8f91\u6e05\u6670\u7684\u4ee3\u7801\u3002<br \/>\n\u200b Python\u7684\u8bbe\u8ba1\u54f2\u5b66\u5f3a\u8c03\u4ee3\u7801\u7684\u53ef\u8bfb<\/p>\n","protected":false},"author":2,"featured_media":106003,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190],"topic":[],"class_list":["post-106015","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-python","tag-190"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python\uff08\u4e00\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/106015.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python\uff08\u4e00\uff09 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u7b2c\u4e00\u7ae0 Python\u7684\u4ecb\u7ecd 1. 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