{"id":92568,"date":"2026-08-10T16:17:00","date_gmt":"2026-08-10T08:17:00","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/92568.html"},"modified":"2026-08-10T16:17:00","modified_gmt":"2026-08-10T08:17:00","slug":"%e3%80%90python%e5%85%a5%e9%97%a8%e5%88%b0%e7%b2%be%e9%80%9a%e3%80%91%e5%9f%ba%e7%a1%80%e7%af%87","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/92568.html","title":{"rendered":"\u3010Python\u5165\u95e8\u5230\u7cbe\u901a\u3011\u57fa\u7840\u7bc7"},"content":{"rendered":"

\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\u8d70\u8fdbPython\u7f16\u7a0b\u4e16\u754c：\u5f00\u542f\u4f60\u7684\u4ee3\u7801\u5f81\u9014<\/h2>\n

001 Python\u7f16\u7a0b\u4e16\u754c\u7684\u7405\u740a\u699c<\/h3>\n

\u5728\u767e\u82b1\u9f50\u653e\u7684\u7f16\u7a0b\u8bed\u8a00\u7248\u56fe\u91cc，Python\u7a33\u7a33\u5360\u636e\u4e00\u5e2d\u9ad8\u5730，\u79f0\u5f97\u4e0a\u7f16\u7a0b\u754c\u5bb6\u55bb\u6237\u6653\u7684\u201c\u7405\u740a\u699c\u540d\u58eb\u201d\u3002C\/C++\u6df1\u8015\u5e95\u5c42\u6027\u80fd\u3001Java\u7a33\u56fa\u4f01\u4e1a\u5f00\u53d1\u3001Go\u8bed\u8a00\u64c5\u957f\u9ad8\u5e76\u53d1，\u800cPython\u51ed\u501f\u72ec\u6709\u7684\u6c14\u8d28，\u4fd8\u83b7\u4e86\u5b66\u751f\u3001\u5de5\u7a0b\u5e08\u3001\u6570\u636e\u5206\u6790\u5e08\u3001\u81ea\u52a8\u5316\u5f00\u53d1\u8005\u65e0\u6570\u7231\u597d\u8005\u3002\u5b83\u4e0d\u8ffd\u6c42\u6666\u6da9\u96be\u61c2\u7684\u8bed\u6cd5\u70ab\u6280，\u4e3b\u6253\u7b80\u6d01\u901a\u900f\u3001\u4e0a\u624b\u53cb\u597d，\u6a2a\u8de8\u811a\u672c\u5f00\u53d1\u3001\u4eba\u5de5\u667a\u80fd\u3001\u6570\u636e\u5206\u6790\u3001Web\u7f51\u7ad9\u3001\u81ea\u52a8\u5316\u4eff\u771f\u3001\u722c\u866b\u56fe\u5f62\u5f00\u53d1\u5404\u5927\u8d5b\u9053，\u9002\u914d\u7edd\u5927\u591a\u6570\u666e\u901a\u4eba\u7684\u5b66\u4e60\u76ee\u6807\u3002\u60f3\u8981\u8bfb\u61c2\u5f53\u4e0b\u6280\u672f\u6d6a\u6f6e，Python\u4fbf\u662f\u503c\u5f97\u4f18\u5148\u8ba4\u8bc6\u7684\u7b2c\u4e00\u540d\u3002<\/p>\n

002 Python\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u706b<\/h3>\n

Python\u80fd\u591f\u6301\u7eed\u8d70\u7ea2，\u4ece\u6765\u4e0d\u662f\u5076\u7136\u3002
\n\u7b2c\u4e00，\u5165\u95e8\u95e8\u69db\u4f4e，\u8bed\u6cd5\u8d34\u8fd1\u81ea\u7136\u8bed\u8a00，\u4e0d\u7528\u7ea0\u7ed3\u7e41\u6742\u7684\u8bed\u6cd5\u683c\u5f0f，\u65b0\u624b\u53ef\u4ee5\u5feb\u901f\u5199\u51fa\u53ef\u8fd0\u884c\u4ee3\u7801；
\n\u7b2c\u4e8c，\u751f\u6001\u6781\u5ea6\u5b8c\u5584，\u6d77\u91cf\u7b2c\u4e09\u65b9\u5f00\u6e90\u5e93\u8986\u76d6\u5404\u884c\u5404\u4e1a，\u6570\u636e\u5206\u6790\u3001\u56fe\u50cf\u5904\u7406\u3001\u7f51\u7edc\u722c\u866b\u3001Web\u5f00\u53d1\u7686\u6709\u6210\u719f\u5de5\u5177；
\n\u7b2c\u4e09，\u5c31\u4e1a\u8d5b\u9053\u5bbd\u5e7f，\u4eba\u5de5\u667a\u80fd\u3001\u5927\u6570\u636e\u81ea\u52a8\u5316\u3001\u6d4b\u8bd5\u8fd0\u7ef4\u3001\u540e\u7aef\u5f00\u53d1\u5927\u91cf\u5c97\u4f4d\u5c06Python\u5217\u4e3a\u6838\u5fc3\u6280\u80fd；
\n\u7b2c\u56db，\u8de8\u5e73\u53f0\u901a\u7528，\u4e00\u4efd\u4ee3\u7801\u7a0d\u52a0\u9002\u914d，\u5373\u53ef\u5728Windows\u3001Mac\u3001Linux\u7cfb\u7edf\u8fd0\u884c；
\n\u7b2c\u4e94，\u5f00\u6e90\u793e\u533a\u6d3b\u8dc3，\u9047\u5230\u95ee\u9898\u6781\u6613\u627e\u5230\u8d44\u6599\u3001\u6559\u7a0b\u4e0e\u89e3\u51b3\u65b9\u6848\u3002
\n\u591a\u91cd\u4f18\u52bf\u53e0\u52a0，\u8ba9Python\u6210\u4e3a\u5f53\u4e0b\u5b66\u4e60\u4eba\u6570\u589e\u957f\u6700\u5feb\u7684\u7f16\u7a0b\u8bed\u8a00\u3002<\/p>\n

003 Python\u8bed\u8a00\u7684\u7279\u70b9<\/h3>\n
  • \u7b80\u6d01\u6613\u8bfb：\u5f3a\u5236\u7f29\u8fdb\u89c4\u8303\u4ee3\u7801\u7ed3\u6784，\u51cf\u5c11\u5927\u91cf\u62ec\u53f7\u3001\u5206\u53f7\u5197\u4f59\u4ee3\u7801，\u53ef\u8bfb\u6027\u62c9\u6ee1；<\/li>\n
  • \u89e3\u91ca\u578b\u8bed\u8a00：\u65e0\u9700\u63d0\u524d\u7f16\u8bd1，\u5199\u5b8c\u76f4\u63a5\u8fd0\u884c，\u8c03\u8bd5\u9ad8\u6548，\u9002\u5408\u5feb\u901f\u9a8c\u8bc1\u60f3\u6cd5；<\/li>\n
  • \u9762\u5411\u5bf9\u8c61+\u9762\u5411\u8fc7\u7a0b\u53cc\u652f\u6301，\u7075\u6d3b\u9002\u914d\u4e0d\u540c\u5f00\u53d1\u573a\u666f；<\/li>\n
  • \u53ef\u6269\u5c55\u6027\u5f3a，\u652f\u6301\u8c03\u7528C\u3001C++\u7f16\u5199\u7684\u5e95\u5c42\u6a21\u5757，\u517c\u987e\u5f00\u53d1\u6548\u7387\u4e0e\u8fd0\u884c\u6027\u80fd；<\/li>\n
  • \u4e30\u5bcc\u6807\u51c6\u5e93，\u6587\u4ef6\u64cd\u4f5c\u3001\u7f51\u7edc\u8bbf\u95ee\u3001\u65e5\u671f\u8ba1\u7b97\u7b49\u5e38\u7528\u529f\u80fd\u5f00\u7bb1\u5373\u7528；<\/li>\n
  • \u5f00\u6e90\u514d\u8d39，\u4efb\u4f55\u4eba\u53ef\u4ee5\u81ea\u7531\u4e0b\u8f7d\u3001\u4f7f\u7528\u3001\u4fee\u6539\u6e90\u7801，\u65e0\u5546\u4e1a\u6388\u6743\u538b\u529b\u3002<\/li>\n

    004 \u9009\u62e9Python\u7248\u672c<\/h3>\n

    Python\u4e3b\u6d41\u5206\u4e3aPython2\u4e0ePython3\u4e24\u5927\u5206\u652f，Python2\u5df2\u7ecf\u5168\u9762\u505c\u6b62\u7ef4\u62a4，\u65b0\u9879\u76ee\u4e00\u5f8b\u9009\u62e9Python3\u3002
    \nPython3\u5185\u90e8\u5c0f\u7248\u672c\u6301\u7eed\u8fed\u4ee3，\u4f18\u5148\u9009\u62e9\u5b98\u65b9\u957f\u671f\u652f\u6301\u7a33\u5b9a\u7248（\u59823.9~3.12\u7cfb\u5217）\u3002
    \n\u4e0d\u5efa\u8bae\u76f2\u76ee\u8ffd\u6c42\u6700\u65b0\u6d4b\u8bd5\u7248\u672c，\u65b0\u7248\u672c\u5bb9\u6613\u51fa\u73b0\u7b2c\u4e09\u65b9\u5e93\u517c\u5bb9bug；\u4e5f\u4e0d\u8981\u9009\u7528\u5e74\u4ee3\u8fc7\u4e8e\u8001\u65e7\u7684\u7248\u672c，\u7f3a\u5c11\u65b0\u8bed\u6cd5\u7279\u6027\u4e0e\u5b89\u5168\u66f4\u65b0\u3002
    \n\u786e\u5b9a\u7248\u672c\u540e，\u5168\u7a0b\u7edf\u4e00\u73af\u5883，\u907f\u514d\u540e\u671f\u56e0\u4e3a\u7248\u672c\u5dee\u5f02\u5bfc\u81f4\u4ee3\u7801\u62a5\u9519\u3002<\/p>\n

    005 Windows\u7cfb\u7edf\u4e0b\u8f7d\u5b89\u88c5Python<\/h3>\n

    \u6253\u5f00Python\u5b98\u65b9\u7f51\u7ad9，\u8fdb\u5165\u4e0b\u8f7d\u9875\u9762\u83b7\u53d6\u5bf9\u5e94\u7a33\u5b9a\u7248\u672c\u5b89\u88c5\u5305\u3002
    \n\u8fd0\u884c\u5b89\u88c5\u7a0b\u5e8f\u65f6，\u52a1\u5fc5\u52fe\u9009Add Python to PATH，\u81ea\u52a8\u914d\u7f6e\u7cfb\u7edf\u73af\u5883\u53d8\u91cf，\u7701\u53bb\u624b\u52a8\u914d\u7f6e\u9ebb\u70e6\u3002
    \n\u9009\u62e9\u81ea\u5b9a\u4e49\u5b89\u88c5\u8def\u5f84，\u6839\u636e\u5411\u5bfc\u5b8c\u6210pip\u5de5\u5177\u3001\u6587\u6863\u3001\u5f00\u53d1\u7ec4\u4ef6\u5b89\u88c5\u3002
    \n\u5b89\u88c5\u7ed3\u675f\u540e\u6253\u5f00CMD\u7ec8\u7aef，\u8f93\u5165python –version，\u80fd\u591f\u6b63\u5e38\u8f93\u51fa\u7248\u672c\u53f7，\u4ee3\u8868\u5b89\u88c5\u6210\u529f\u3002<\/p>\n

    006 Mac\u7cfb\u7edf\u4e0b\u8f7d\u5b89\u88c5Python<\/h3>\n

    Mac\u7cfb\u7edf\u9884\u88c5Python，\u4f46\u7cfb\u7edf\u81ea\u5e26\u7248\u672c\u591a\u4e3aPython2，\u4e0d\u5efa\u8bae\u76f4\u63a5\u4f7f\u7528\u3002
    \n\u65b9\u5f0f\u4e00：\u5b98\u7f51\u4e0b\u8f7dmacOS\u5b89\u88c5\u5305\u56fe\u5f62\u5316\u5b89\u88c5；
    \n\u65b9\u5f0f\u4e8c：\u501f\u52a9Homebrew\u5305\u7ba1\u7406\u5668，\u7ec8\u7aef\u6267\u884c\u547d\u4ee4\u4e00\u952e\u5b89\u88c5\u3002
    \n\u5b89\u88c5\u5b8c\u6210\u540e\u533a\u5206\u7cfb\u7edf\u81ea\u5e26Python\u4e0e\u65b0\u7248Python3，\u591a\u6570\u73af\u5883\u4e0b\u4f7f\u7528python3\u547d\u4ee4\u8c03\u7528\u3002
    \n\u540c\u6837\u5728\u7ec8\u7aef\u6821\u9a8c\u7248\u672c，\u786e\u8ba4\u73af\u5883\u53d8\u91cf\u6b63\u5e38，pip\u5de5\u5177\u53ef\u7528\u3002<\/p>\n

    007 Linux\u7cfb\u7edf\u4e0b\u8f7d\u5b89\u88c5Python<\/h3>\n

    Ubuntu\u3001CentOS\u7b49Linux\u53d1\u884c\u7248\u81ea\u5e26Python\u73af\u5883，\u4f46\u7248\u672c\u7ecf\u5e38\u504f\u65e7\u3002
    \n\u53ef\u4ee5\u901a\u8fc7\u7cfb\u7edf\u8f6f\u4ef6\u5305\u7ba1\u7406\u5668\u76f4\u63a5\u5b89\u88c5\u7a33\u5b9a\u7248；\u82e5\u9700\u8981\u6307\u5b9a\u9ad8\u7248\u672c，\u5219\u4e0b\u8f7d\u6e90\u7801\u5305\u624b\u52a8\u7f16\u8bd1\u5b89\u88c5\u3002
    \n\u7f16\u8bd1\u5b89\u88c5\u9700\u8981\u63d0\u524d\u914d\u7f6egcc\u7b49\u4f9d\u8d56\u5de5\u5177\u3002
    \nLinux\u73af\u5883\u4e0b\u9ed8\u8ba4\u4f7f\u7528python3\u6307\u4ee4\u8fd0\u884c\u7a0b\u5e8f，\u5b66\u4f1a\u4f7f\u7528\u865a\u62df\u73af\u5883\u9694\u79bb\u4e0d\u540c\u9879\u76ee\u4f9d\u8d56，\u907f\u514d\u5e93\u7248\u672c\u51b2\u7a81\u3002<\/p>\n

    008 \u4f7f\u7528IDLE\u5f00\u53d1\u5de5\u5177<\/h3>\n

    IDLE\u662fPython\u81ea\u5e26\u7684\u8f7b\u91cfIDE，\u5b89\u88c5Python\u540e\u81ea\u52a8\u914d\u5907，\u65e0\u9700\u989d\u5916\u4e0b\u8f7d\u3002
    \n\u5b83\u5206\u4e3a\u4ea4\u4e92\u5f0f\u547d\u4ee4\u7a97\u53e3\u4e0e\u4ee3\u7801\u7f16\u8f91\u7a97\u53e3：\u4ea4\u4e92\u7a97\u53e3\u9002\u5408\u5355\u884c\u4ee3\u7801\u5373\u65f6\u6d4b\u8bd5，\u7528\u6765\u7b80\u5355\u8fd0\u7b97\u3001\u9a8c\u8bc1\u8bed\u6cd5；\u65b0\u5efa\u6587\u4ef6\u7a97\u53e3\u53ef\u4ee5\u7f16\u5199\u5b8c\u6574.py\u811a\u672c，\u4fdd\u5b58\u540e\u76f4\u63a5\u8fd0\u884c\u3002
    \n\u4f18\u70b9：\u96f6\u914d\u7f6e\u3001\u5f00\u7bb1\u5373\u7528，\u975e\u5e38\u9002\u5408\u96f6\u57fa\u7840\u65b0\u624b\u7ec3\u4e60；\u7f3a\u70b9：\u7f3a\u5c11\u9879\u76ee\u7ba1\u7406\u3001\u4ee3\u7801\u63d0\u793a\u3001\u8c03\u8bd5\u9ad8\u7ea7\u529f\u80fd，\u9002\u5408\u5165\u95e8\u7ec3\u4e60，\u5927\u578b\u9879\u76ee\u540e\u7eed\u5efa\u8bae\u66f4\u6362\u4e13\u4e1a\u7f16\u8f91\u5668\u3002<\/p>\n

    009 \u4f7f\u7528Emacs\u5f00\u53d1\u5de5\u5177<\/h3>\n

    Emacs\u662f\u7ecf\u5178\u8001\u724c\u53ef\u7f16\u7a0b\u7f16\u8f91\u5668，\u5c5e\u4e8e\u8d44\u6df1\u5f00\u53d1\u8005\u559c\u7231\u7684\u5de5\u5177\u3002
    \n\u5b89\u88c5Python\u5f00\u53d1\u76f8\u5173\u63d2\u4ef6\u540e，\u652f\u6301\u8bed\u6cd5\u9ad8\u4eae\u3001\u4ee3\u7801\u8865\u5168\u3001\u811a\u672c\u4e00\u952e\u8fd0\u884c\u3001\u65ad\u70b9\u8c03\u8bd5\u3002
    \nEmacs\u9ad8\u5ea6\u81ea\u5b9a\u4e49，\u7528\u6237\u53ef\u4ee5\u81ea\u7531\u914d\u7f6e\u5feb\u6377\u952e\u3001\u754c\u9762\u5e03\u5c40\u3001\u4ee3\u7801\u683c\u5f0f\u5316\u89c4\u5219\u3002
    \n\u5b66\u4e60\u6210\u672c\u76f8\u5bf9\u66f4\u9ad8，\u9002\u5408\u613f\u610f\u6df1\u8015\u5de5\u5177\u3001\u8ffd\u6c42\u9ad8\u5ea6\u4e2a\u6027\u5316\u5f00\u53d1\u73af\u5883\u7684\u5b66\u4e60\u8005\u3002\u9664\u6b64\u4e4b\u5916VS Code\u3001PyCharm\u4e5f\u662f\u5f53\u4e0b\u4e3b\u6d41\u7684Python\u5f00\u53d1\u5de5\u5177，\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u5907\u9009\u3002<\/p>\n

    010 \u7f16\u7801\u5e76\u8fd0\u884c\u7b2c\u4e00\u6bb5Python\u7a0b\u5e8f<\/h3>\n

    \u4e07\u4e8b\u4ff1\u5907，\u6b63\u5f0f\u4e66\u5199\u7b2c\u4e00\u884c\u4ee3\u7801\u3002
    \n\u6253\u5f00\u5f00\u53d1\u5de5\u5177，\u65b0\u5efa\u4ee3\u7801\u6587\u4ef6，\u8f93\u5165\u7ecf\u5178\u5165\u95e8\u8bed\u53e5：<\/p>\n

    print<\/span>(<\/span>"Hello Python！\u5f00\u542f\u6211\u7684\u7f16\u7a0b\u4e4b\u65c5"<\/span>)<\/span><\/p>\n

    \u4fdd\u5b58\u4e3ahello.py，\u5728\u7ec8\u7aef\u6216\u8005\u7f16\u8f91\u5668\u5185\u7f6e\u8fd0\u884c\u529f\u80fd\u6267\u884c\u811a\u672c\u3002
    \n\u5f53\u5c4f\u5e55\u6210\u529f\u6253\u5370\u51fa\u6587\u5b57，\u610f\u5473\u7740\u5b8c\u6574\u94fe\u8def\u5168\u90e8\u6253\u901a：\u73af\u5883\u5b89\u88c5\u3001\u7f16\u8f91\u5668\u914d\u7f6e\u3001\u4ee3\u7801\u7f16\u5199\u3001\u7a0b\u5e8f\u8fd0\u884c\u5168\u90e8\u5b8c\u6210\u3002
    \n\u770b\u4f3c\u7b80\u5355\u7684\u4e00\u884c\u8f93\u51fa，\u5374\u662f\u6574\u4e2aPython\u5b66\u4e60\u4e4b\u8def\u7684\u8d77\u70b9\u3002\u540e\u7eed\u53d8\u91cf\u3001\u5faa\u73af\u3001\u51fd\u6570\u3001\u7c7b\u3001\u7b2c\u4e09\u65b9\u5e93，\u6240\u6709\u590d\u6742\u529f\u80fd，\u90fd\u5c06\u4ece\u8fd9\u4e00\u6bb5\u5c0f\u7a0b\u5e8f\u5f00\u59cb\u5ef6\u4f38\u62d3\u5c55\u3002<\/p>\n

    011 Python\u7a0b\u5e8f\u5176\u4ed6\u8fd0\u884c\u65b9\u5f0f<\/h3>\n

    \u5f88\u591a\u65b0\u624b\u53ea\u77e5\u9053\u5728\u7f16\u8f91\u5668\u5185\u70b9\u51fb\u8fd0\u884c，\u5176\u5b9ePython\u811a\u672c\u62e5\u6709\u591a\u79cd\u6267\u884c\u9014\u5f84\u3002\u9664IDE\u5185\u7f6e\u8fd0\u884c\u6309\u94ae\u5916，\u53ef\u4ee5\u76f4\u63a5\u53cc\u51fb.py\u6587\u4ef6\u6267\u884c；\u5728Windows\u3001Mac\u3001Linux\u5404\u81ea\u7684\u7ec8\u7aef\u3001\u547d\u4ee4\u63d0\u793a\u7b26\u3001Shell\u4e2d\u8f93\u5165\u6307\u4ee4\u8fd0\u884c；\u8fd8\u80fd\u591f\u5c06\u811a\u672c\u6253\u5305\u6210\u53ef\u6267\u884c\u6587\u4ef6\u8131\u79bbPython\u73af\u5883\u76f4\u63a5\u6253\u5f00\u3002\u540c\u65f6\u652f\u6301\u4ee5\u4ea4\u4e92\u5f0f\u6a21\u5f0f\u9010\u884c\u6267\u884c\u4ee3\u7801，\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7b2c\u4e09\u65b9\u5de5\u5177\u3001\u6279\u5904\u7406\u811a\u672c\u5b9a\u65f6\u8c03\u7528Python\u7a0b\u5e8f\u3002\u4e0d\u540c\u8fd0\u884c\u65b9\u5f0f\u9002\u7528\u4e8e\u8c03\u8bd5\u3001\u65e5\u5e38\u5f00\u53d1\u3001\u81ea\u52a8\u5316\u4efb\u52a1\u7b49\u4e0d\u540c\u573a\u666f，\u719f\u7ec3\u638c\u63e1\u53ef\u4ee5\u6781\u5927\u63d0\u5347\u7075\u6d3b\u5ea6\u3002<\/p>\n

    012 \u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u2014\u2014\u5b89\u88c5\u6587\u672c\u7f16\u8f91\u5668<\/h3>\n

    \u81ea\u5e26\u7684IDLE\u4ec5\u9002\u5408\u5165\u95e8\u7ec3\u4e60，\u957f\u671f\u5f00\u53d1\u9700\u8981\u4e13\u4e1a\u6587\u672c\u7f16\u8f91\u5668\u3002\u4e3b\u6d41\u9009\u62e9\u5305\u542bVS Code\u3001Sublime Text\u3001Atom\u7b49\u5de5\u5177\u3002\u8fd9\u7c7b\u7f16\u8f91\u5668\u62e5\u6709\u8bed\u6cd5\u9ad8\u4eae\u3001\u81ea\u52a8\u7f29\u8fdb\u3001\u4ee3\u7801\u8865\u5168\u3001\u591a\u6587\u4ef6\u7ba1\u7406\u3001\u63d2\u4ef6\u6269\u5c55\u7b49\u80fd\u529b\u3002\u5b89\u88c5Python\u914d\u5957\u63d2\u4ef6\u540e，\u53ef\u5b9e\u73b0\u4e00\u952e\u8fd0\u884c\u4ee3\u7801\u3001\u8bed\u6cd5\u5b9e\u65f6\u68c0\u67e5\u3001\u683c\u5f0f\u5316\u4ee3\u7801\u3002\u8f7b\u91cf\u5316\u7f16\u8f91\u5668\u542f\u52a8\u8fc5\u901f，\u8d44\u6e90\u5360\u7528\u4f4e，\u517c\u987e\u7b80\u5355\u811a\u672c\u4e0e\u4e2d\u5c0f\u578b\u9879\u76ee，\u662f\u4ecb\u4e8e\u7b80\u6613IDLE\u548c\u91cd\u578bIDE\u4e4b\u95f4\u7684\u6700\u4f18\u9009\u62e9，\u4e5f\u662f\u7edd\u5927\u591a\u6570Python\u5b66\u4e60\u8005\u8fc7\u6e21\u9636\u6bb5\u7684\u9996\u9009\u5de5\u5177\u3002<\/p>\n

    013 \u5feb\u901f\u8fd0\u884cHello World\u7a0b\u5e8f<\/h3>\n

    \u642d\u5efa\u597d\u7f16\u8f91\u5668\u73af\u5883\u540e，\u518d\u6b21\u4e0a\u624b\u7ecf\u5178Hello World\u7a0b\u5e8f\u3002\u65b0\u5efa\u7a7a\u767d\u6587\u4ef6，\u5199\u5165\u8f93\u51fa\u4ee3\u7801，\u4fdd\u5b58\u4e3a.py\u540e\u7f00\u6587\u4ef6\u3002\u501f\u52a9\u7f16\u8f91\u5668\u5185\u7f6e\u8fd0\u884c\u5feb\u6377\u952e，\u65e0\u9700\u624b\u52a8\u5207\u6362\u7ec8\u7aef，\u4e00\u952e\u6267\u884c\u67e5\u770b\u7ed3\u679c\u3002\u719f\u7ec3\u638c\u63e1\u6587\u4ef6\u4fdd\u5b58\u8def\u5f84\u89c4\u8303，\u907f\u514d\u56e0\u4e2d\u6587\u8def\u5f84\u3001\u7a7a\u683c\u8def\u5f84\u5bfc\u81f4\u7a0b\u5e8f\u8fd0\u884c\u5931\u8d25\u3002\u5feb\u901f\u8fd0\u884c\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u9ad8\u9891\u9a8c\u8bc1\u4ee3\u7801\u601d\u8def，\u517b\u6210\u201c\u5199\u5b8c\u4e00\u5c0f\u6bb5，\u7acb\u523b\u6d4b\u8bd5\u201d\u7684\u826f\u597d\u4e60\u60ef，\u4e3a\u4e4b\u540e\u590d\u6742\u4ee3\u7801\u8c03\u8bd5\u6253\u4e0b\u57fa\u7840\u3002<\/p>\n

    014 \u5728\u7ec8\u7aef\u4f1a\u8bdd\u4e2d\u8fd0\u884cPython\u4ee3\u7801<\/h3>\n

    \u7ec8\u7aef\u662f\u7a0b\u5e8f\u5458\u5fc5\u5907\u64cd\u4f5c\u73af\u5883\u3002\u6253\u5f00\u7cfb\u7edf\u7ec8\u7aef，\u8f93\u5165python\u6216python3\u5373\u53ef\u8fdb\u5165Python\u4ea4\u4e92\u5f0f\u4f1a\u8bdd\u3002\u5728\u4ea4\u4e92\u73af\u5883\u4e2d\u53ef\u4ee5\u5373\u65f6\u8f93\u5165\u5355\u884c\u4ee3\u7801\u5e76\u9a6c\u4e0a\u5f97\u5230\u7ed3\u679c，\u9002\u5408\u6d4b\u8bd5\u8bed\u6cd5\u3001\u7b80\u5355\u8fd0\u7b97\u3001\u4e34\u65f6\u9a8c\u8bc1\u51fd\u6570\u6548\u679c\u3002
    \n\u4e5f\u53ef\u4ee5\u4e0d\u8fdb\u5165\u4ea4\u4e92\u6a21\u5f0f，\u76f4\u63a5\u6267\u884c\u6307\u4ee4：python hello.py\u8fd0\u884c\u672c\u5730\u811a\u672c\u3002\u5b66\u4f1a\u770b\u61c2\u7ec8\u7aef\u62a5\u9519\u4fe1\u606f，\u5f53\u4ee3\u7801\u51fa\u9519\u65f6，\u7ec8\u7aef\u4f1a\u7cbe\u51c6\u63d0\u793a\u9519\u8bef\u4f4d\u7f6e\u4e0e\u9519\u8bef\u7c7b\u578b，\u8fd9\u662f\u6392\u67e5BUG\u6700\u91cd\u8981\u7684\u624b\u6bb5\u3002<\/p>\n

    015 \u5b57\u7b26\u7f16\u7801<\/h3>\n

    \u8ba1\u7b97\u673a\u5e95\u5c42\u53ea\u80fd\u8bc6\u522b\u4e8c\u8fdb\u5236\u6570\u5b57，\u65e0\u6cd5\u76f4\u63a5\u5b58\u50a8\u6587\u5b57\u3001\u7b26\u53f7\u3002\u5b57\u7b26\u7f16\u7801\u5c31\u662f\u4e00\u5957\u89c4\u5219：\u628a\u4eba\u7c7b\u6587\u5b57\u6620\u5c04\u6210\u4e8c\u8fdb\u5236\u6570\u636e\u3002\u65e9\u671f\u8bde\u751f\u4e86ASCII\u7f16\u7801，\u4ec5\u652f\u6301\u82f1\u6587\u5b57\u6bcd\u3001\u6570\u5b57\u4e0e\u57fa\u7840\u7b26\u53f7，\u65e0\u6cd5\u5b58\u50a8\u4e2d\u6587\u3002\u4e3a\u4e86\u5bb9\u7eb3\u5404\u56fd\u8bed\u8a00，\u9646\u7eed\u51fa\u73b0GB2312\u3001GBK\u7b49\u4e2d\u6587\u7f16\u7801\u3002\u4e0d\u540c\u7f16\u7801\u6807\u51c6\u4e92\u4e0d\u517c\u5bb9，\u4e00\u65e6\u7f16\u7801\u548c\u89e3\u7801\u89c4\u5219\u4e0d\u4e00\u81f4，\u5c31\u4f1a\u51fa\u73b0\u4e71\u7801\u3002\u4e71\u7801\u662f\u5f00\u53d1\u4e2d\u9ad8\u9891\u8e29\u5751\u95ee\u9898，\u60f3\u8981\u5f7b\u5e95\u89e3\u51b3，\u5fc5\u987b\u7406\u89e3\u7f16\u7801\u5e95\u5c42\u539f\u7406\u3002<\/p>\n

    016 Unicode\u7f16\u7801\u548cUTF-8\u7f16\u7801<\/h3>\n

    Unicode\u76f8\u5f53\u4e8e\u4e00\u5f20\u5168\u7403\u7edf\u4e00\u7684\u5b57\u7b26\u767b\u8bb0\u8868，\u4e3a\u4e16\u754c\u4e0a\u51e0\u4e4e\u6240\u6709\u6587\u5b57\u5206\u914d\u552f\u4e00\u7f16\u53f7，\u4f46\u5b83\u53ea\u5b9a\u4e49\u5b57\u7b26\u7f16\u53f7，\u6ca1\u6709\u89c4\u5b9a\u5982\u4f55\u5b58\u50a8\u4f20\u8f93\u3002
    \nUTF-8\u662fUnicode\u6700\u6d41\u884c\u7684\u5b9e\u73b0\u65b9\u5f0f，\u662f\u4e00\u79cd\u53ef\u53d8\u957f\u5ea6\u7f16\u7801：\u82f1\u6587\u3001\u7b26\u53f7\u5360\u75281\u5b57\u8282，\u4e2d\u6587\u5360\u75283\u5b57\u8282\u3002\u4f18\u52bf\u662f\u517c\u5bb9ASCII\u3001\u8282\u7701\u5b58\u50a8\u7a7a\u95f4，\u4e5f\u662f\u4e92\u8054\u7f51\u3001Python\u3001\u7f51\u9875\u901a\u7528\u6807\u51c6\u3002
    \n\u7b80\u5355\u533a\u5206：Unicode\u662f\u5b57\u7b26\u96c6，UTF-8\u662f\u7f16\u7801\u65b9\u6848\u3002\u65e5\u5e38\u5f00\u53d1\u7edf\u4e00\u4f7f\u7528UTF-8，\u80fd\u4ece\u6839\u6e90\u89c4\u907f\u7edd\u5927\u591a\u6570\u4e2d\u6587\u4e71\u7801\u95ee\u9898\u3002<\/p>\n

    017 Python\u4e2d\u7684\u7f16\u7801<\/h3>\n

    Python3\u505a\u51fa\u91cd\u5927\u4f18\u5316：\u5b57\u7b26\u4e32str\u9ed8\u8ba4\u91c7\u7528Unicode\u5b58\u50a8；\u5b57\u8282\u7c7b\u578bbytes\u4f7f\u7528\u5177\u4f53\u7f16\u7801（\u901a\u5e38\u4e3aUTF-8）\u3002
    \n\u5b57\u7b26\u4e32\u4e0e\u5b57\u8282\u4e4b\u95f4\u4f9d\u9760encode()\u7f16\u7801\u3001decode()\u89e3\u7801\u76f8\u4e92\u8f6c\u6362\u3002
    \n\u7f16\u5199\u6e90\u4ee3\u7801\u6587\u4ef6\u65f6，\u63a8\u8350\u6587\u4ef6\u5934\u90e8\u7edf\u4e00\u58f0\u660e\u7f16\u7801# -*- coding: utf-8 -*-\u3002\u867d\u7136\u65b0\u7248Python3\u9ed8\u8ba4\u6e90\u6587\u4ef6\u7f16\u7801\u5c31\u662fUTF-8，\u4f46\u517b\u6210\u663e\u5f0f\u58f0\u660e\u7684\u89c4\u8303，\u53ef\u4ee5\u517c\u5bb9\u8001\u65e7\u8fd0\u884c\u73af\u5883，\u907f\u514d\u79fb\u690d\u4ee3\u7801\u65f6\u51fa\u73b0\u83ab\u540d\u4e71\u7801\u3002\u8bfb\u5199\u6587\u4ef6\u65f6，\u52a1\u5fc5\u4e3b\u52a8\u6307\u5b9aencoding=\u201cutf-8\u201d\u3002<\/p>\n

    018 \u5b9e\u73b0\u8f93\u5165\u529f\u80fd<\/h3>\n

    \u7a0b\u5e8f\u4e0d\u5e94\u8be5\u53ea\u80fd\u5355\u5411\u8f93\u51fa，input()\u51fd\u6570\u8d1f\u8d23\u63a5\u6536\u7528\u6237\u4ece\u63a7\u5236\u53f0\u8f93\u5165\u7684\u5185\u5bb9\u3002\u8fd0\u884c\u4ee3\u7801\u540e\u7a0b\u5e8f\u6682\u505c，\u7b49\u5f85\u7528\u6237\u952e\u5165\u6587\u5b57\u5e76\u56de\u8f66\u786e\u8ba4，\u6240\u6709\u63a5\u6536\u5f97\u5230\u7684\u6570\u636e\u9ed8\u8ba4\u90fd\u662f\u5b57\u7b26\u4e32\u7c7b\u578b\u3002
    \n\u6211\u4eec\u53ef\u4ee5\u63a5\u6536\u7528\u6237\u540d\u3001\u6570\u5b57\u3001\u6587\u672c\u4fe1\u606f，\u518d\u7ed3\u5408\u540e\u7eed\u903b\u8f91\u8fdb\u884c\u5904\u7406\u3002\u540c\u65f6\u9700\u8981\u6ce8\u610f，\u5982\u679c\u9700\u8981\u83b7\u53d6\u6570\u5b57，\u5fc5\u987b\u624b\u52a8\u4f7f\u7528int()\u3001float()\u5b8c\u6210\u7c7b\u578b\u8f6c\u6362\u3002\u8f93\u5165\u529f\u80fd\u642d\u5efa\u8d77\u4eba\u4e0e\u7a0b\u5e8f\u4ea4\u4e92\u7684\u6865\u6881，\u662f\u5236\u4f5c\u4ea4\u4e92\u5f0f\u5c0f\u7a0b\u5e8f\u7684\u57fa\u7840\u3002<\/p>\n

    \u793a\u4f8b：<\/p>\n

    name =<\/span> input<\/span>(<\/span>"\u8bf7\u8f93\u5165\u4f60\u7684\u540d\u5b57："<\/span>)<\/span>
    \nprint<\/span>(<\/span>f"\u4f60\u597d，<\/span>{<\/span>name}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

    019 \u5b9e\u73b0\u8f93\u51fa\u529f\u80fd<\/h3>\n

    print()\u662fPython\u6700\u57fa\u7840\u7684\u8f93\u51fa\u51fd\u6570，\u53ef\u4ee5\u5728\u63a7\u5236\u53f0\u6253\u5370\u4fe1\u606f\u3002\u5b83\u652f\u6301\u540c\u65f6\u8f93\u51fa\u591a\u4e2a\u6570\u636e，\u7528\u9017\u53f7\u9694\u5f00；\u652f\u6301\u683c\u5f0f\u5316\u8f93\u51fa，\u62fc\u63a5\u53d8\u91cf\u4e0e\u6587\u672c\u3002
    \n\u5e38\u89c1\u4e09\u79cd\u683c\u5f0f\u5316\u65b9\u5f0f：\u5b57\u7b26\u4e32\u62fc\u63a5\u3001%\u683c\u5f0f\u5316\u3001str.format()，\u4ee5\u53caPython3.6\u4e4b\u540e\u63a8\u8350\u4f7f\u7528\u7684f-string\u3002
    \n\u540c\u65f6\u53ef\u4ee5\u4fee\u6539print\u9ed8\u8ba4\u884c\u4e3a：\u8c03\u6574\u672b\u5c3e\u6362\u884c\u7b26\u3001\u8bbe\u7f6e\u591a\u4e2a\u5185\u5bb9\u4e4b\u95f4\u7684\u5206\u9694\u7b26\u3002\u719f\u7ec3\u7075\u6d3b\u8fd0\u7528\u8f93\u51fa\u65b9\u5f0f，\u80fd\u591f\u6e05\u6670\u5c55\u793a\u8fd0\u884c\u7ed3\u679c，\u65b9\u4fbf\u8c03\u8bd5\u67e5\u770b\u53d8\u91cf\u6570\u636e\u3002<\/p>\n

    020 \u4f7f\u7528\u6ce8\u91ca\u65f6\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n

    \u6ce8\u91ca\u7528\u4e8e\u7ed9\u5f00\u53d1\u8005\u9605\u8bfb，Python\u89e3\u91ca\u5668\u4f1a\u76f4\u63a5\u5ffd\u7565\u6ce8\u91ca\u5185\u5bb9，\u4e0d\u4f1a\u6267\u884c\u3002
    \n\u5355\u884c\u6ce8\u91ca\u4f7f\u7528#，\u591a\u884c\u6ce8\u91ca\u4f7f\u7528\u4e09\u5f15\u53f7""" """\u3002
    \n\u7f16\u5199\u6ce8\u91ca\u6709\u51e0\u6761\u6838\u5fc3\u51c6\u5219：<\/p>\n

  • \u4e0d\u8981\u590d\u8ff0\u4ee3\u7801\u672c\u8eab\u5df2\u7ecf\u663e\u800c\u6613\u89c1\u7684\u903b\u8f91；<\/li>\n
  • \u91cd\u70b9\u8bf4\u660e\u4e3a\u4ec0\u4e48\u8fd9\u4e48\u5199，\u800c\u4e0d\u662f\u63cf\u8ff0\u4ee3\u7801\u505a\u4e86\u4ec0\u4e48；<\/li>\n
  • \u53ca\u65f6\u7ef4\u62a4\u6ce8\u91ca，\u4ee3\u7801\u4fee\u6539\u540e\u540c\u6b65\u66f4\u65b0\u6ce8\u91ca，\u9632\u6b62\u6ce8\u91ca\u548c\u4ee3\u7801\u8131\u8282\u8bef\u5bfc\u4ed6\u4eba；<\/li>\n
  • \u907f\u514d\u5927\u91cf\u5197\u4f59\u6ce8\u91ca，\u4fdd\u6301\u4ee3\u7801\u81ea\u8eab\u53ef\u8bfb\u6027\u4f18\u5148；<\/li>\n
  • \u6b63\u5f0f\u9879\u76ee\u4e0d\u8981\u9057\u7559\u5927\u91cf\u8c03\u8bd5\u7528\u6ce8\u91ca\u4ee3\u7801，\u53d1\u5e03\u524d\u6e05\u7406\u5e72\u51c0\u3002
    \n\u89c4\u8303\u7684\u6ce8\u91ca\u662f\u56e2\u961f\u534f\u4f5c\u3001\u957f\u671f\u7ef4\u62a4\u9879\u76ee\u4e0d\u53ef\u6216\u7f3a\u7684\u597d\u4e60\u60ef\u3002<\/li>\n

    021 \u6ce8\u610f\u53d8\u91cf\u7684\u547d\u540d\u89c4\u5219\u548c\u5efa\u8bae<\/h3>\n

    \u53d8\u91cf\u540d\u662f\u4ee3\u7801\u6700\u57fa\u7840\u7684\u6807\u8bc6，\u5fc5\u987b\u9075\u5b88\u786c\u6027\u8bed\u6cd5\u89c4\u5219，\u540c\u65f6\u9075\u5faa\u884c\u4e1a\u89c4\u8303\u3002
    \n\u786c\u6027\u89c4\u5219：\u53d8\u91cf\u540d\u53ea\u80fd\u7531\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\u6784\u6210；\u4e0d\u80fd\u4ee5\u6570\u5b57\u5f00\u5934；\u4e25\u683c\u533a\u5206\u5927\u5c0f\u5199；\u4e0d\u53ef\u4ee5\u4f7f\u7528Python\u5185\u7f6e\u5173\u952e\u5b57，\u4f8b\u5982if\u3001for\u3001def\u3001class\u7b49\u3002
    \n\u5f00\u53d1\u89c4\u8303\u5efa\u8bae：Python\u53d8\u91cf\u63a8\u8350\u86c7\u5f62\u547d\u540d\u6cd5（\u5c0f\u5199\u5b57\u6bcd+\u4e0b\u5212\u7ebf，\u5982user_name）；\u4e0d\u8981\u4f7f\u7528\u65e0\u610f\u4e49\u5355\u5b57\u6bcd\u540d\u79f0（\u9664\u5faa\u73af\u4e34\u65f6\u53d8\u91cfi,j），\u5c3d\u91cf\u89c1\u540d\u77e5\u610f；\u7981\u6b62\u4f7f\u7528\u4e2d\u6587\u53d8\u91cf\u540d（\u867d\u7136\u8bed\u6cd5\u652f\u6301，\u4f46\u8de8\u73af\u5883\u6781\u6613\u5f15\u53d1\u7f16\u7801\u5f02\u5e38）；\u5e38\u91cf\u5168\u90e8\u5927\u5199，\u4f8b\u5982MAX_NUM\u3002\u89c4\u8303\u547d\u540d\u80fd\u5927\u5e45\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027，\u65b9\u4fbf\u540e\u7eed\u81ea\u67e5\u4e0e\u56e2\u961f\u534f\u4f5c\u3002<\/p>\n

    022 \u6ce8\u610fPython\u8bed\u8a00\u7684\u7f29\u8fdb\u89c4\u5219<\/h3>\n

    \u4e0eC\u3001Java\u4f9d\u9760\u5927\u62ec\u53f7\u5212\u5206\u4ee3\u7801\u5757\u4e0d\u540c，Python\u4f9d\u9760\u7f29\u8fdb\u533a\u5206\u4ee3\u7801\u5c42\u7ea7，\u8fd9\u662f\u65b0\u624b\u6700\u5bb9\u6613\u51fa\u9519\u7684\u5173\u952e\u70b9\u3002
    \n\u9ed8\u8ba4\u89c4\u8303\u4f7f\u75284\u4e2a\u7a7a\u683c\u4f5c\u4e3a\u4e00\u5c42\u7f29\u8fdb，\u4e0d\u5efa\u8bae\u6df7\u7528Tab\u5236\u8868\u7b26\u4e0e\u7a7a\u683c，\u6df7\u7528\u4f1a\u76f4\u63a5\u89e6\u53d1\u8bed\u6cd5\u62a5\u9519\u3002if\u3001for\u3001while\u3001def\u3001class\u7b49\u5192\u53f7\u7ed3\u5c3e\u8bed\u53e5，\u4e0b\u4e00\u884c\u5fc5\u987b\u7f29\u8fdb\u3002\u540c\u4e00\u4ee3\u7801\u5757\u4fdd\u6301\u7f29\u8fdb\u5bf9\u9f50；\u7f29\u8fdb\u5c42\u7ea7\u9519\u8bef，\u4e0d\u4ec5\u8fd0\u884c\u62a5\u9519，\u8fd8\u4f1a\u76f4\u63a5\u6539\u53d8\u7a0b\u5e8f\u903b\u8f91\u3002\u5f88\u591a\u65b0\u624b\u903b\u8f91\u6b63\u786e\u5374\u4ee3\u7801\u5d29\u6e83，\u6839\u6e90\u5f80\u5f80\u5c31\u662f\u7f29\u8fdb\u6df7\u4e71\u3002\u517b\u6210\u7edf\u4e00\u7f29\u8fdb\u4e60\u60ef，\u662f\u5b66\u597dPython\u7684\u5fc5\u4fee\u8bfe\u3002<\/p>\n

    023 \u53d8\u91cf\u8d4b\u503c\u7684\u771f\u6b63\u610f\u4e49<\/h3>\n

    \u5f88\u591a\u521d\u5b66\u8005\u8bef\u4ee5\u4e3a\u8d4b\u503c\u662f\u201c\u628a\u6570\u503c\u88c5\u8fdb\u53d8\u91cf\u76d2\u5b50\u201d，\u5728Python\u4e2d\u8fd9\u4e2a\u7406\u89e3\u5e76\u4e0d\u51c6\u786e\u3002
    \na = 10\u672c\u8d28\u6d41\u7a0b：\u5728\u5185\u5b58\u4e2d\u521b\u5efa\u5bf9\u8c6110，\u53d8\u91cfa\u4f5c\u4e3a\u6807\u7b7e\u3001\u5f15\u7528\u6307\u5411\u8fd9\u4e2a\u5185\u5b58\u5bf9\u8c61\u3002\u6267\u884cb = a\u5e76\u4e0d\u662f\u590d\u5236\u6570\u636e，\u800c\u662f\u8ba9\u6807\u7b7eb\u548ca\u6307\u5411\u540c\u4e00\u4e2a\u5bf9\u8c61\u3002
    \n\u533a\u5206\u53ef\u53d8\u5bf9\u8c61\u4e0e\u4e0d\u53ef\u53d8\u5bf9\u8c61：\u6570\u5b57\u3001\u5b57\u7b26\u4e32\u5c5e\u4e8e\u4e0d\u53ef\u53d8\u7c7b\u578b，\u91cd\u65b0\u8d4b\u503c\u4f1a\u8ba9\u53d8\u91cf\u6307\u5411\u65b0\u5bf9\u8c61；\u5217\u8868\u3001\u5b57\u5178\u7b49\u53ef\u53d8\u5bf9\u8c61，\u591a\u4e2a\u53d8\u91cf\u6307\u5411\u540c\u4e00\u5bf9\u8c61\u65f6，\u4e00\u5904\u4fee\u6539\u5168\u90e8\u540c\u6b65\u751f\u6548\u3002\u7406\u89e3\u5f15\u7528\u673a\u5236，\u624d\u80fd\u641e\u61c2\u51fd\u6570\u4f20\u53c2\u3001\u6df1\u6d45\u62f7\u8d1d\u7b49\u540e\u7eed\u96be\u70b9\u3002<\/p>\n

    024 \u89e3\u7801\u5b57\u8282\u6d41<\/h3>\n

    \u7f51\u7edc\u4f20\u8f93\u3001\u6587\u4ef6\u8bfb\u5199\u3001\u4e8c\u8fdb\u5236\u6570\u636e\u4ea4\u4e92\u65f6，\u6570\u636e\u5927\u591a\u4ee5\u5b57\u8282\u6d41（bytes）\u5f62\u5f0f\u5b58\u5728\u3002
    \n\u5b57\u8282\u6d41\u65e0\u6cd5\u76f4\u63a5\u5f53\u4f5c\u6b63\u5e38\u6587\u672c\u4f7f\u7528，\u5fc5\u987b\u901a\u8fc7decode()\u89e3\u7801\u8f6c\u4e3a\u5b57\u7b26\u4e32str\u3002
    \n\u8bed\u6cd5\u793a\u4f8b：b'python'.decode("utf-8")\u3002\u89e3\u7801\u65f6\u5fc5\u987b\u660e\u786e\u7f16\u7801\u683c\u5f0f，\u5e38\u7528UTF-8\u3001GBK；\u5982\u679c\u7f16\u7801\u683c\u5f0f\u4e0d\u5339\u914d，\u76f4\u63a5\u629b\u51faUnicodeDecodeError\u4e71\u7801\u6216\u62a5\u9519\u3002\u4e0e\u4e4b\u5bf9\u5e94，\u5b57\u7b26\u4e32\u4f7f\u7528encode()\u7f16\u7801\u5f97\u5230\u5b57\u8282\u6d41\u3002\u7f16\u7801\u4e0e\u89e3\u7801\u6210\u5bf9\u51fa\u73b0，\u662f\u5904\u7406\u722c\u866b\u3001\u6587\u4ef6\u3001\u7f51\u7edc\u63a5\u53e3\u6570\u636e\u7684\u9ad8\u9891\u64cd\u4f5c\u3002<\/p>\n

    025 \u8bbf\u95ee\u5b57\u7b26\u4e32\u4e2d\u7684\u503c<\/h3>\n

    Python\u5b57\u7b26\u4e32\u5c5e\u4e8e\u6709\u5e8f\u5e8f\u5217，\u652f\u6301\u4e0b\u6807\u7d22\u5f15\u53d6\u503c\u3002\u7d22\u5f15\u4ece0\u5f00\u59cb，\u4ee3\u8868\u7b2c\u4e00\u4e2a\u5b57\u7b26；\u540c\u65f6\u652f\u6301\u8d1f\u7d22\u5f15，-1\u4ee3\u8868\u5b57\u7b26\u4e32\u6700\u540e\u4e00\u4f4d\u5b57\u7b26\u3002
    \n\u4f7f\u7528\u5b57\u7b26\u4e32[\u7d22\u5f15]\u83b7\u53d6\u5355\u4e2a\u5b57\u7b26；\u4f7f\u7528\u5207\u7247[\u8d77\u59cb:\u7ed3\u675f:\u6b65\u957f]\u622a\u53d6\u4e00\u6bb5\u5b50\u4e32\u3002\u6ce8\u610f\u5207\u7247\u89c4\u5219：\u5de6\u95ed\u53f3\u5f00，\u7ed3\u675f\u7d22\u5f15\u4f4d\u7f6e\u5b57\u7b26\u4e0d\u4f1a\u88ab\u5305\u542b\u3002
    \n\u793a\u4f8b：<\/p>\n

    s =<\/span> "Python"<\/span>
    \nprint<\/span>(<\/span>s[<\/span>0<\/span>]<\/span>)<\/span>
    \nprint<\/span>(<\/span>s[<\/span>–<\/span>1<\/span>]<\/span>)<\/span>
    \nprint<\/span>(<\/span>s[<\/span>0<\/span>:<\/span>4<\/span>]<\/span>)<\/span><\/p>\n

    \u719f\u7ec3\u638c\u63e1\u7d22\u5f15\u548c\u5207\u7247，\u662f\u5b57\u7b26\u4e32\u3001\u5217\u8868\u6570\u636e\u5904\u7406\u7684\u57fa\u7840\u3002<\/p>\n

    026 \u66f4\u65b0\u5b57\u7b26\u4e32<\/h3>\n

    \u65b0\u624b\u5e38\u4f1a\u5c1d\u8bd5s[0] = "A"\u4fee\u6539\u5b57\u7b26\u4e32\u6307\u5b9a\u5b57\u7b26，\u8fd0\u884c\u540e\u76f4\u63a5\u62a5\u9519\u3002
    \n\u539f\u56e0：Python\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u5e8f\u5217，\u521b\u5efa\u5b8c\u6210\u540e，\u5185\u5b58\u4e2d\u7684\u539f\u59cb\u5185\u5bb9\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u3002
    \n\u60f3\u8981\u5b9e\u73b0\u5b57\u7b26\u4e32\u66f4\u65b0，\u6b63\u786e\u601d\u8def：\u901a\u8fc7\u5207\u7247\u62fc\u63a5\u3001replace\u66ff\u6362\u3001\u5206\u5272\u91cd\u7ec4\u7b49\u65b9\u5f0f\u751f\u6210\u4e00\u6bb5\u5168\u65b0\u5b57\u7b26\u4e32，\u518d\u7528\u53d8\u91cf\u63a5\u6536\u65b0\u5bf9\u8c61\u3002\u65e7\u5b57\u7b26\u4e32\u82e5\u65e0\u5176\u4ed6\u53d8\u91cf\u5f15\u7528，\u6700\u7ec8\u4f1a\u88ab\u5783\u573e\u56de\u6536\u3002\u7406\u89e3\u5b57\u7b26\u4e32\u4e0d\u53ef\u53d8\u7279\u6027，\u53ef\u4ee5\u89c4\u907f\u5927\u91cf\u521d\u5b66\u8005\u5e38\u89c1bug\u3002<\/p>\n

    027 \u8f6c\u4e49\u5b57\u7b26<\/h3>\n

    \u5b57\u7b26\u4e32\u4e2d\u90e8\u5206\u5b57\u7b26\u62e5\u6709\u7279\u6b8a\u542b\u4e49，\u65e0\u6cd5\u76f4\u63a5\u4e66\u5199，\u4f9d\u9760\u8f6c\u4e49\u5b57\u7b26\\\\\u5b9e\u73b0\u3002
    \n\u5e38\u7528\u8f6c\u4e49\u5b57\u7b26：\\\\n\u6362\u884c\u3001\\\\t\u5236\u8868\u7b26\u3001\\\\\\\\\u8f93\u51fa\u53cd\u659c\u6760\u3001\\\\"\u4e0e\\\\'\u5728\u5f15\u53f7\u5185\u8f93\u51fa\u5f15\u53f7\u3002
    \n\u5982\u679c\u4e00\u6bb5\u6587\u672c\u5b58\u5728\u5927\u91cf\u53cd\u659c\u6760（\u4f8b\u5982\u6587\u4ef6\u8def\u5f84\u3001\u6b63\u5219\u8868\u8fbe\u5f0f），\u9891\u7e41\u8f6c\u4e49\u5341\u5206\u7e41\u7410，\u53ef\u4ee5\u4f7f\u7528\u539f\u59cb\u5b57\u7b26\u4e32r""，\u539f\u59cb\u5b57\u7b26\u4e32\u5185\u90e8\u6240\u6709\u5b57\u7b26\u539f\u6837\u8f93\u51fa，\u4e0d\u518d\u89e3\u6790\u8f6c\u4e49\u7b26\u53f7\u3002\u7075\u6d3b\u8fd0\u7528\u8f6c\u4e49\u5b57\u7b26\u4e0e\u539f\u59cb\u5b57\u7b26\u4e32，\u89e3\u51b3\u8def\u5f84\u3001\u6587\u672c\u6392\u7248\u76f8\u5173\u95ee\u9898\u3002<\/p>\n

    028 \u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/h3>\n

    \u5f00\u53d1\u4e2d\u7ecf\u5e38\u9700\u8981\u628a\u53d8\u91cf\u5d4c\u5165\u6587\u672c\u8f93\u51fa，\u4e5f\u5c31\u662f\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3002
    \nPython\u4e3b\u6d41\u56db\u79cd\u65b9\u6848：<\/p>\n

  • %\u683c\u5f0f\u5316：\u65e9\u671f\u4f20\u7edf\u5199\u6cd5；<\/li>\n
  • str.format()：\u517c\u5bb9\u6027\u66f4\u5f3a；<\/li>\n
  • f-string（\u683c\u5f0f\u5316\u5b57\u9762\u91cf）：Python3.6+\u63a8\u8350\u65b9\u6848，\u5199\u6cd5\u7b80\u6d01\u76f4\u89c2，\u76f4\u63a5\u5728\u5b57\u7b26\u4e32\u5185{\u53d8\u91cf}\u53d6\u503c，\u652f\u6301\u7b80\u5355\u8fd0\u7b97；<\/li>\n
  • \u5b57\u7b26\u4e32\u62fc\u63a5+：\u53ea\u9002\u5408\u5c11\u91cf\u5b57\u7b26\u4e32\u5408\u5e76，\u4e0d\u5efa\u8bae\u6df7\u7528\u5b57\u7b26\u4e32\u4e0e\u6570\u5b57\u3002
    \n\u65e5\u5e38\u5f00\u53d1\u4f18\u5148\u9009\u62e9f-string，\u517c\u987e\u53ef\u8bfb\u6027\u4e0e\u8fd0\u884c\u6548\u7387\u3002<\/li>\n

    029 \u5b57\u7b26\u4e32\u5904\u7406\u51fd\u6570<\/h3>\n

    Python\u5185\u7f6e\u5927\u91cf\u5b57\u7b26\u4e32\u65b9\u6cd5，\u65e0\u9700\u989d\u5916\u5b89\u88c5\u5e93，\u5f00\u7bb1\u5373\u7528\u3002
    \n\u5e38\u7528\u529f\u80fd：strip()\u53bb\u9664\u9996\u5c3e\u7a7a\u767d\u5b57\u7b26；split()\u5206\u5272\u5b57\u7b26\u4e32\u751f\u6210\u5217\u8868；join()\u5c06\u5e8f\u5217\u62fc\u63a5\u4e3a\u5b57\u7b26\u4e32；replace()\u5185\u5bb9\u66ff\u6362；upper()\/lower()\u5927\u5c0f\u5199\u8f6c\u6362；find()\/index()\u67e5\u627e\u5b50\u4e32\u4f4d\u7f6e；startswith()\u3001endswith()\u5224\u65ad\u9996\u5c3e\u6587\u672c\u3002
    \n\u5b57\u7b26\u4e32\u5904\u7406\u662f\u722c\u866b\u3001\u6587\u672c\u5206\u6790\u3001\u6570\u636e\u6e05\u6d17\u6700\u5e38\u7528\u7684\u64cd\u4f5c，\u719f\u7ec3\u638c\u63e1\u5185\u7f6e\u65b9\u6cd5，\u53ef\u4ee5\u907f\u514d\u5927\u91cf\u91cd\u590d\u624b\u5199\u5faa\u73af\u903b\u8f91\u3002<\/p>\n

    030 \u6574\u578b\u6570\u5b57\u7c7b\u578b<\/h3>\n

    int\u6574\u578b，\u7528\u6765\u8868\u793a\u6ca1\u6709\u5c0f\u6570\u7684\u6574\u6570，\u598210\u3001-256\u3002
    \nPython3\u7684\u6574\u578b\u4e0d\u518d\u9650\u5236\u6570\u503c\u5927\u5c0f，\u53ef\u4ee5\u8f7b\u677e\u5904\u7406\u8d85\u5927\u6574\u6570，\u4e0d\u7528\u62c5\u5fc3\u6ea2\u51fa\u95ee\u9898\u3002
    \n\u652f\u6301\u5341\u8fdb\u5236\u3001\u4e8c\u8fdb\u52360b\u3001\u516b\u8fdb\u52360o\u3001\u5341\u516d\u8fdb\u52360x\u591a\u79cd\u8fdb\u5236\u5199\u6cd5；\u63d0\u4f9bbin()\u3001oct()\u3001hex()\u5b9e\u73b0\u8fdb\u5236\u4e92\u76f8\u8f6c\u6362\u3002
    \n\u53ef\u4ee5\u4f7f\u7528int()\u51fd\u6570\u628a\u5408\u6cd5\u6570\u5b57\u5b57\u7b26\u4e32\u3001\u6d6e\u70b9\u6570\u5f3a\u5236\u8f6c\u4e3a\u6574\u6570（\u6d6e\u70b9\u6570\u8f6c\u6362\u76f4\u63a5\u820d\u5f03\u5c0f\u6570\u90e8\u5206，\u4e0d\u4f1a\u56db\u820d\u4e94\u5165）\u3002\u6574\u6570\u662f\u6570\u503c\u8fd0\u7b97\u3001\u8ba1\u6570\u903b\u8f91\u6700\u57fa\u7840\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n

    031 \u6d6e\u70b9\u578b\u6570\u5b57\u7c7b\u578b<\/h3>\n

    \u6d6e\u70b9\u578bfloat\u7528\u6765\u5b58\u50a8\u5e26\u5c0f\u6570\u7684\u6570\u503c，\u4f8b\u5982 3.14\u3001-0.618\u3002
    \nPython\u6d6e\u70b9\u6570\u9075\u5faaIEEE 754\u6807\u51c6，\u5b58\u5728\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898，\u4e0d\u8981\u76f4\u63a5\u7528==\u5224\u65ad\u4e24\u4e2a\u6d6e\u70b9\u6570\u662f\u5426\u76f8\u7b49\u3002<\/p>\n

    a =<\/span> 0.1<\/span> +<\/span> 0.2<\/span>
    \nprint<\/span>(<\/span>a)<\/span> # \u8f93\u51fa 0.30000000000000004<\/span>
    \nprint<\/span>(<\/span>a ==<\/span> 0.3<\/span>)<\/span> # False<\/span><\/p>\n

    # \u6b63\u786e\u505a\u6cd5：\u5224\u65ad\u5dee\u503c\u662f\u5426\u5c0f\u4e8e\u6781\u5c0f\u503c<\/span>
    \nprint<\/span>(<\/span>abs<\/span>(<\/span>a –<\/span> 0.3<\/span>)<\/span> <<\/span> 1e-9<\/span>)<\/span><\/p>\n

    \u53ef\u4ee5\u4f7f\u7528float()\u5c06\u5b57\u7b26\u4e32\u3001\u6574\u6570\u8f6c\u4e3a\u6d6e\u70b9\u6570；\u79d1\u5b66\u8ba1\u6570\u6cd5\u4e5f\u5c5e\u4e8e\u6d6e\u70b9\u7c7b\u578b\u3002<\/p>\n

    num1 =<\/span> 1.68<\/span>
    \nnum2 =<\/span> 2e3<\/span> # 2000.0<\/span>
    \nnum3 =<\/span> float<\/span>(<\/span>"9.99"<\/span>)<\/span>
    \nprint<\/span>(<\/span>num1,<\/span> num2,<\/span> num3)<\/span><\/p>\n

    032 \u5e03\u5c14\u578b\u6570\u5b57\u7c7b\u578b<\/h3>\n

    \u5e03\u5c14\u7c7b\u578bbool\u53ea\u6709\u4e24\u4e2a\u53d6\u503c：True\u548cFalse\u3002
    \n\u672c\u8d28\u662f\u7279\u6b8a\u6574\u6570：True == 1，False == 0\u3002<\/p>\n

    print<\/span>(<\/span>True<\/span> +<\/span> 1<\/span>)<\/span> # 2<\/span>
    \nprint<\/span>(<\/span>False<\/span> *<\/span> 5<\/span>)<\/span> # 0<\/span>
    \nprint<\/span>(<\/span>True<\/span> ==<\/span> 1<\/span>)<\/span> # True<\/span>
    \nprint<\/span>(<\/span>False<\/span> ==<\/span> 0<\/span>)<\/span> # True<\/span><\/p>\n

    \u4efb\u610f\u6570\u636e\u90fd\u53ef\u4ee5\u7528bool()\u8f6c\u6362\u6210\u5e03\u5c14\u503c：\u7a7a\u5b57\u7b26\u4e32\u30010\u3001\u7a7a\u5217\u8868\u3001None\u90fd\u4f1a\u5f97\u5230False，\u5176\u4f59\u4e00\u822c\u4e3aTrue\u3002<\/p>\n

    print<\/span>(<\/span>bool<\/span>(<\/span>0<\/span>)<\/span>)<\/span>
    \nprint<\/span>(<\/span>bool<\/span>(<\/span>""<\/span>)<\/span>)<\/span>
    \nprint<\/span>(<\/span>bool<\/span>(<\/span>"python"<\/span>)<\/span>)<\/span>
    \nprint<\/span>(<\/span>bool<\/span>(<\/span>[<\/span>1<\/span>,<\/span>2<\/span>]<\/span>)<\/span>)<\/span>
    \nprint<\/span>(<\/span>bool<\/span>(<\/span>[<\/span>]<\/span>)<\/span>)<\/span><\/p>\n

    033 \u590d\u6570\u578b\u6570\u5b57\u7c7b\u578b<\/h3>\n

    Python\u539f\u751f\u652f\u6301\u590d\u6570complex，\u683c\u5f0f：\u5b9e\u90e8 + \u865a\u90e8j，j\u4ee3\u8868\u865a\u6570\u5355\u4f4d\u3002<\/p>\n

    c1 =<\/span> 3<\/span> +<\/span> 4j<\/span>
    \nc2 =<\/span> complex<\/span>(<\/span>2<\/span>,<\/span> 5<\/span>)<\/span>
    \nprint<\/span>(<\/span>c1)<\/span>
    \nprint<\/span>(<\/span>c2)<\/span>
    \nprint<\/span>(<\/span>c1.<\/span>real)<\/span> # \u83b7\u53d6\u5b9e\u90e8<\/span>
    \nprint<\/span>(<\/span>c1.<\/span>imag)<\/span> # \u83b7\u53d6\u865a\u90e8<\/span>
    \nprint<\/span>(<\/span>c1.<\/span>conjugate(<\/span>)<\/span>)<\/span> # \u83b7\u53d6\u5171\u8f6d\u590d\u6570<\/span><\/p>\n

    \u590d\u6570\u4e4b\u95f4\u652f\u6301\u52a0\u51cf\u4e58\u9664\u8fd0\u7b97，\u591a\u7528\u4e8e\u4fe1\u53f7\u5904\u7406\u3001\u79d1\u5b66\u8ba1\u7b97\u3002<\/p>\n

    034 \u603b\u7ed3\u6574\u6570\u652f\u6301\u7684\u8fd0\u7b97\u7b26<\/h3>\n

    \u6574\u578b\u652f\u6301\u5168\u5957\u7b97\u672f\u8fd0\u7b97：+ – * \/ \/\/ % **<\/p>\n

    a =<\/span> 10<\/span>
    \nb =<\/span> 3<\/span>
    \nprint<\/span>(<\/span>a +<\/span> b)<\/span> # \u52a0 13<\/span>
    \nprint<\/span>(<\/span>a –<\/span> b)<\/span> # \u51cf 7<\/span>
    \nprint<\/span>(<\/span>a *<\/span> b)<\/span> # \u4e58 30<\/span>
    \nprint<\/span>(<\/span>a \/<\/span> b)<\/span> # \u9664，\u7ed3\u679c\u6d6e\u70b9\u6570 3.333…<\/span>
    \nprint<\/span>(<\/span>a \/\/<\/span> b)<\/span> # \u5730\u677f\u9664，\u5411\u4e0b\u53d6\u6574 3<\/span>
    \nprint<\/span>(<\/span>a %<\/span> b)<\/span> # \u53d6\u4f59\u6570 1<\/span>
    \nprint<\/span>(<\/span>a **<\/span> b)<\/span> # \u5e42\u8fd0\u7b97 1000<\/span><\/p>\n

    \u6ce8\u610f：\/\u6c38\u8fdc\u8fd4\u56defloat；\u60f3\u8981\u6574\u6570\u7ed3\u679c\u4f18\u5148\u4f7f\u7528\/\/\u3002<\/p>\n

    035 Python\u4e2d\u7684\u6570\u5b66\u51fd\u6570<\/h3>\n

    \u5185\u7f6e\u57fa\u7840\u6570\u5b66\u51fd\u6570\u65e0\u9700\u5bfc\u5165\u6a21\u5757；\u9ad8\u7ea7\u51fd\u6570\u9700\u8981import math\u3002<\/p>\n

    # \u5185\u7f6e\u51fd\u6570<\/span>
    \nprint<\/span>(<\/span>abs<\/span>(<\/span>–<\/span>9<\/span>)<\/span>)<\/span> # \u7edd\u5bf9\u503c<\/span>
    \nprint<\/span>(<\/span>round<\/span>(<\/span>3.56<\/span>,<\/span>1<\/span>)<\/span>)<\/span> # \u56db\u820d\u4e94\u5165<\/span><\/p>\n

    import<\/span> math
    \nprint<\/span>(<\/span>math.<\/span>ceil(<\/span>2.1<\/span>)<\/span>)<\/span> # \u5411\u4e0a\u53d6\u6574 3<\/span>
    \nprint<\/span>(<\/span>math.<\/span>floor(<\/span>2.9<\/span>)<\/span>)<\/span> # \u5411\u4e0b\u53d6\u6574 2<\/span>
    \nprint<\/span>(<\/span>math.<\/span>sqrt(<\/span>16<\/span>)<\/span>)<\/span> # \u5e73\u65b9\u6839<\/span>
    \nprint<\/span>(<\/span>math.<\/span>pi)<\/span> # \u5706\u5468\u7387<\/span>
    \nprint<\/span>(<\/span>math.<\/span>sin(<\/span>math.<\/span>pi\/<\/span>2<\/span>)<\/span>)<\/span><\/p>\n

    036 \u5b57\u7b26\u4e32\u7684\u683c\u5f0f\u5316\u6280\u5de7<\/h3>\n

    \u91cd\u70b9\u6f14\u793a f-string\u3001format\u3001\u767e\u5206\u53f7\u683c\u5f0f\u5316，\u63a8\u8350f-string\u3002<\/p>\n

    name =<\/span> "\u5c0f\u660e"<\/span>
    \nage =<\/span> 18<\/span>
    \n# f-string（\u63a8\u8350 Python3.6+）<\/span>
    \ns1 =<\/span> f"\u59d3\u540d：<\/span>{<\/span>name}<\/span><\/span>，\u5e74\u9f84：<\/span>{<\/span>age}<\/span><\/span>"<\/span><\/span>
    \nprint<\/span>(<\/span>s1)<\/span><\/p>\n

    # format<\/span>
    \ns2 =<\/span> "\u59d3\u540d：{}，\u5e74\u9f84：{}"<\/span>.<\/span>format<\/span>(<\/span>name,<\/span> age)<\/span>
    \nprint<\/span>(<\/span>s2)<\/span><\/p>\n

    # \u767e\u5206\u53f7\u8001\u5f0f\u5199\u6cd5<\/span>
    \ns3 =<\/span> "\u59d3\u540d：%s，\u5e74\u9f84：%d"<\/span> %<\/span> (<\/span>name,<\/span> age)<\/span>
    \nprint<\/span>(<\/span>s3)<\/span><\/p>\n

    # \u683c\u5f0f\u5316\u6570\u5b57：\u4fdd\u7559\u5c0f\u6570<\/span>
    \npi =<\/span> 3.14159<\/span>
    \nprint<\/span>(<\/span>f"\u5706\u5468\u7387=<\/span>{<\/span>pi:<\/span>.2f<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

    037 \u4ec0\u4e48\u662f\u8fd0\u7b97\u7b26\u548c\u8868\u8fbe\u5f0f<\/h3>\n

    \u8fd0\u7b97\u7b26：\u7528\u6765\u6267\u884c\u8fd0\u7b97\u7684\u7b26\u53f7 + – * > = and；
    \n\u8868\u8fbe\u5f0f：\u7531\u53d8\u91cf\u3001\u5e38\u91cf\u3001\u8fd0\u7b97\u7b26\u7ec4\u5408\u800c\u6210，\u8fd0\u7b97\u540e\u4ea7\u751f\u4e00\u4e2a\u7ed3\u679c\u3002<\/p>\n

    # \u4e0b\u9762\u6574\u884c\u90fd\u662f\u8868\u8fbe\u5f0f<\/span>
    \na =<\/span> 1<\/span> +<\/span> 2<\/span> *<\/span> 3<\/span>
    \nprint<\/span>(<\/span>10<\/span> ><\/span> 5<\/span>)<\/span>
    \nname =<\/span> "py"<\/span> +<\/span> "thon"<\/span><\/p>\n

    \u8868\u8fbe\u5f0f\u53ef\u4ee5\u76f4\u63a5\u653e\u5728print()\u3001if\u5224\u65ad\u3001\u8d4b\u503c\u8bed\u53e5\u4e2d\u4f7f\u7528\u3002<\/p>\n

    038 \u7b97\u672f\u8fd0\u7b97\u7b26\u548c\u7b97\u672f\u8868\u8fbe\u5f0f<\/h3>\n

    \u7b97\u672f\u8fd0\u7b97\u7b26\u7528\u4e8e\u6570\u503c\u8ba1\u7b97，\u6784\u6210\u7b97\u672f\u8868\u8fbe\u5f0f\u3002<\/p>\n

    x =<\/span> 7<\/span>
    \ny =<\/span> 2<\/span>
    \nexpr1 =<\/span> x +<\/span> y
    \nexpr2 =<\/span> x **<\/span> y
    \nexpr3 =<\/span> x \/\/<\/span> y
    \nexpr4 =<\/span> x %<\/span> y
    \nprint<\/span>(<\/span>expr1,<\/span> expr2,<\/span> expr3,<\/span> expr4)<\/span><\/p>\n

    # \u8fd0\u7b97\u4f18\u5148\u7ea7：\u5148\u4e58\u9664\u540e\u52a0\u51cf，\u62ec\u53f7\u4f18\u5148<\/span>
    \nres =<\/span> 2<\/span> +<\/span> 3<\/span> *<\/span> 4<\/span>
    \nres2 =<\/span> (<\/span>2<\/span> +<\/span> 3<\/span>)<\/span> *<\/span> 4<\/span>
    \nprint<\/span>(<\/span>res,<\/span> res2)<\/span><\/p>\n

    039 \u6bd4\u8f83\u8fd0\u7b97\u7b26\u548c\u6bd4\u8f83\u8868\u8fbe\u5f0f<\/h3>\n

    \u6bd4\u8f83\u8fd0\u7b97\u7b26：> < >= <= == !=
    \n\u8fd0\u7b97\u7ed3\u679c\u6c38\u8fdc\u662f\u5e03\u5c14\u503c True \/ False\u3002<\/p>\n

    a =<\/span> 10<\/span>
    \nb =<\/span> 6<\/span>
    \nprint<\/span>(<\/span>a ><\/span> b)<\/span>
    \nprint<\/span>(<\/span>a ==<\/span> b)<\/span>
    \nprint<\/span>(<\/span>a !=<\/span> b)<\/span>
    \nprint<\/span>(<\/span>5<\/span> <=<\/span> 5<\/span>)<\/span><\/p>\n

    # Python\u652f\u6301\u8fde\u7eed\u6bd4\u8f83（\u7279\u8272\u8bed\u6cd5）<\/span>
    \nnum =<\/span> 8<\/span>
    \nprint<\/span>(<\/span>5<\/span> <<\/span> num <<\/span> 10<\/span>)<\/span> # \u7b49\u4ef7\u4e8e 5 < num and num <10<\/span><\/p>\n

    040 \u57fa\u672c\u8d4b\u503c\u8fd0\u7b97\u7b26\u548c\u8868\u8fbe\u5f0f<\/h3>\n

    \u57fa\u7840\u8d4b\u503c\u7b26\u53f7 =，\u884d\u751f\u590d\u5408\u8d4b\u503c：+= -= *= \/= \/\/= %= **=<\/p>\n

    n =<\/span> 5<\/span>
    \nn +=<\/span> 2<\/span> # n = n + 2<\/span>
    \nprint<\/span>(<\/span>n)<\/span><\/p>\n

    n -=<\/span> 1<\/span> # n = n -1<\/span>
    \nprint<\/span>(<\/span>n)<\/span><\/p>\n

    n *=<\/span> 3<\/span>
    \nprint<\/span>(<\/span>n)<\/span><\/p>\n

    n \/\/=<\/span> 2<\/span>
    \nprint<\/span>(<\/span>n)<\/span><\/p>\n

    n **=<\/span> 2<\/span>
    \nprint<\/span>(<\/span>n)<\/span><\/p>\n

    \u26a0\ufe0f\u6ce8\u610f：=\u662f\u8d4b\u503c，==\u624d\u662f\u5224\u65ad\u76f8\u7b49，\u65b0\u624b\u6781\u6613\u6df7\u6dc6\u3002<\/p>\n

    041 \u590d\u5408\u8d4b\u503c\u8fd0\u7b97\u7b26\u548c\u8868\u8fbe\u5f0f<\/h3>\n

    \u590d\u5408\u8d4b\u503c\u8fd0\u7b97\u7b26\u5c06\u7b97\u672f\u8fd0\u7b97\u4e0e\u8d4b\u503c\u5408\u5e76\u4e66\u5199，\u7b80\u5316\u4ee3\u7801\u3002\u5305\u542b：+= -= *= \/= \/\/= %= **=\u3002<\/p>\n

    a =<\/span> 10<\/span>
    \na +=<\/span> 3<\/span> # a = a + 3<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    a -=<\/span> 2<\/span> # a = a – 2<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    a *=<\/span> 2<\/span> # a = a * 2<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    a \/\/=<\/span> 3<\/span> # a = a \/\/ 3<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    a %=<\/span> 2<\/span> # a = a % 2<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    a **=<\/span> 4<\/span> # a = a ** 4<\/span>
    \nprint<\/span>(<\/span>a)<\/span><\/p>\n

    \u6ce8\u610f：\u590d\u5408\u8d4b\u503c\u4e0d\u80fd\u76f4\u63a5\u5199 a += 1 + 2 \u4ee5\u5916\u7684\u8fde\u7eed\u94fe\u5f0f\u7b49\u5f0f，\u5e76\u4e14\u4e0d\u652f\u6301\u50cfC\u8bed\u8a00\u4e00\u6837\u81ea\u589ea++\u3001\u81ea\u51cfa–\u3002<\/p>\n

    042 \u4f4d\u8fd0\u7b97\u7b26\u548c\u4f4d\u8868\u8fbe\u5f0f<\/h3>\n

    \u4f4d\u8fd0\u7b97\u7b26\u76f4\u63a5\u64cd\u4f5c\u6570\u5b57\u4e8c\u8fdb\u5236\u8865\u7801：&\u6309\u4f4d\u4e0e\u3001|\u6309\u4f4d\u6216\u3001^\u6309\u4f4d\u5f02\u6216\u3001~\u6309\u4f4d\u53d6\u53cd\u3001<<\u5de6\u79fb\u3001>>\u53f3\u79fb\u3002<\/p>\n

    a =<\/span> 6<\/span> # 0110<\/span>
    \nb =<\/span> 3<\/span> # 0011<\/span>
    \nprint<\/span>(<\/span>a &<\/span> b)<\/span> # 0010 \u2192 2<\/span>
    \nprint<\/span>(<\/span>a |<\/span> b)<\/span> # 0111 \u2192 7<\/span>
    \nprint<\/span>(<\/span>a ^<\/span> b)<\/span> # 0101 \u2192 5<\/span>
    \nprint<\/span>(<\/span>~<\/span>a)<\/span> # \u6309\u4f4d\u53d6\u53cd -7<\/span>
    \nprint<\/span>(<\/span>a <<<\/span> 1<\/span>)<\/span> # \u5de6\u79fb\u4e00\u4f4d 12<\/span>
    \nprint<\/span>(<\/span>a >><\/span> 1<\/span>)<\/span> # \u53f3\u79fb\u4e00\u4f4d 3<\/span><\/p>\n

    \u5e38\u7528\u4e8e\u5e95\u5c42\u786c\u4ef6\u5f00\u53d1\u3001\u6743\u9650\u63a9\u7801\u3001\u9ad8\u6548\u4e58\u9664\u8fd0\u7b97，\u5de6\u79fb\u7b49\u4ef7\u4e58\u4ee52，\u53f3\u79fb\u7b49\u4ef7\u6574\u96642\u3002<\/p>\n

    043 \u903b\u8f91\u8fd0\u7b97\u7b26\u548c\u903b\u8f91\u8868\u8fbe\u5f0f<\/h3>\n

    \u903b\u8f91\u8fd0\u7b97\u7b26：and\u3001or\u3001not，\u7528\u4e8e\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6，\u652f\u6301\u77ed\u8def\u6c42\u503c\u3002<\/p>\n

    a =<\/span> 10<\/span>
    \nb =<\/span> 0<\/span>
    \n# and：\u5168\u771f\u624d\u771f，\u9047\u5230\u5047\u7acb\u523b\u77ed\u8def<\/span>
    \nprint<\/span>(<\/span>a ><\/span> 5<\/span> and<\/span> b ><\/span> 1<\/span>)<\/span>
    \n# or：\u4e00\u771f\u5373\u771f，\u9047\u5230\u771f\u7acb\u523b\u77ed\u8def<\/span>
    \nprint<\/span>(<\/span>a ><\/span> 5<\/span> or<\/span> b ><\/span> 1<\/span>)<\/span>
    \n# not：\u53d6\u53cd<\/span>
    \nprint<\/span>(<\/span>not<\/span> a ><\/span> 5<\/span>)<\/span><\/p>\n

    # \u77ed\u8def\u7279\u6027\u6f14\u793a<\/span>
    \ndef<\/span> test<\/span>(<\/span>)<\/span>:<\/span>
    \n print<\/span>(<\/span>"\u51fd\u6570\u6267\u884c"<\/span>)<\/span>
    \n return<\/span> False<\/span>
    \nprint<\/span>(<\/span>0<\/span> and<\/span> test(<\/span>)<\/span>)<\/span> # \u524d\u9762\u4e3aFalse，test\u4e0d\u4f1a\u8fd0\u884c<\/span>
    \nprint<\/span>(<\/span>1<\/span> or<\/span> test(<\/span>)<\/span>)<\/span> # \u524d\u9762\u4e3aTrue，test\u4e0d\u4f1a\u8fd0\u884c<\/span><\/p>\n

    044 \u6210\u5458\u8fd0\u7b97\u7b26\u548c\u6210\u5458\u8868\u8fbe\u5f0f<\/h3>\n

    in \u548c not in，\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\u4e8e\u5e8f\u5217（\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u3001\u96c6\u5408\u3001\u5b57\u5178\u952e）\u4e2d\u3002<\/p>\n

    lst =<\/span> [<\/span>10<\/span>,<\/span>20<\/span>,<\/span>30<\/span>]<\/span>
    \nprint<\/span>(<\/span>20<\/span> in<\/span> lst)<\/span>
    \nprint<\/span>(<\/span>40<\/span> not<\/span> in<\/span> lst)<\/span><\/p>\n

    s =<\/span> "python"<\/span>
    \nprint<\/span>(<\/span>"yt"<\/span> in<\/span> s)<\/span><\/p>\n

    d =<\/span> {<\/span>"name"<\/span>:<\/span>"Tom"<\/span>}<\/span>
    \nprint<\/span>(<\/span>"name"<\/span> in<\/span> d)<\/span> # \u5b57\u5178\u53ea\u68c0\u7d22key，\u4e0d\u68c0\u7d22value<\/span>
    \nprint<\/span>(<\/span>"Tom"<\/span> not<\/span> in<\/span> d)<\/span><\/p>\n

    045 \u8eab\u4efd\u8fd0\u7b97\u7b26\u548c\u8eab\u4efd\u8868\u8fbe\u5f0f<\/h3>\n

    \u8eab\u4efd\u8fd0\u7b97\u7b26：is\u3001is not，\u5224\u65ad\u4e24\u4e2a\u53d8\u91cf\u662f\u5426\u6307\u5411\u540c\u4e00\u4e2a\u5bf9\u8c61（\u5185\u5b58\u5730\u5740\u4e00\u81f4）\u3002<\/p>\n

    a =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
    \nb =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
    \nc =<\/span> a
    \nprint<\/span>(<\/span>a is<\/span> c)<\/span>
    \nprint<\/span>(<\/span>a is<\/span> b)<\/span>
    \nprint<\/span>(<\/span>a is<\/span> not<\/span> b)<\/span>
    \n# \u4f7f\u7528id()\u67e5\u770b\u5185\u5b58\u5730\u5740<\/span>
    \nprint<\/span>(<\/span>id<\/span>(<\/span>a)<\/span>)<\/span>
    \nprint<\/span>(<\/span>id<\/span>(<\/span>b)<\/span>)<\/span>
    \nprint<\/span>(<\/span>id<\/span>(<\/span>c)<\/span>)<\/span><\/p>\n

    046 \u8fd0\u7b97\u7b26\u7684\u4f18\u5148\u7ea7<\/h3>\n

    \u4f18\u5148\u7ea7\u4ece\u9ad8\u5230\u4f4e\u7b80\u8981\u6392\u5e8f：
    \n\u62ec\u53f7() > \u4f4d\u8fd0\u7b97 > \u7b97\u672f\u8fd0\u7b97 > \u6bd4\u8f83\u8fd0\u7b97 > \u8eab\u4efd\u8fd0\u7b97\u7b26 > \u6210\u5458\u8fd0\u7b97\u7b26 > not > and > or
    \n\u540c\u4e00\u4f18\u5148\u7ea7\u4ece\u5de6\u5411\u53f3\u8ba1\u7b97\u3002<\/p>\n

    # \u793a\u4f8b：\u4f18\u5148\u987a\u5e8f\u9a8c\u8bc1<\/span>
    \nres =<\/span> 3<\/span> +<\/span> 5<\/span> ><\/span> 2<\/span> and<\/span> 10<\/span> <<<\/span> 1<\/span> ==<\/span> 20<\/span>
    \nprint<\/span>(<\/span>res)<\/span>
    \n# \u63a8\u8350：\u590d\u6742\u8868\u8fbe\u5f0f\u5c3d\u91cf\u4f7f\u7528\u62ec\u53f7，\u63d0\u9ad8\u53ef\u8bfb\u6027，\u4e0d\u8981\u4f9d\u9760\u8bb0\u5fc6\u4f18\u5148\u7ea7<\/span>
    \nres2 =<\/span> (<\/span>(<\/span>3<\/span> +<\/span> 5<\/span>)<\/span> ><\/span> 2<\/span>)<\/span> and<\/span> (<\/span>(<\/span>10<\/span> <<<\/span> 1<\/span>)<\/span> ==<\/span> 20<\/span>)<\/span>
    \nprint<\/span>(<\/span>res2)<\/span><\/p>\n

    047 \u201c==\u201d\u8fd0\u7b97\u7b26\u7684\u79d8\u5bc6<\/h3>\n

    == \u4f5c\u7528\u662f\u5224\u65ad\u4e24\u4e2a\u5bf9\u8c61\u7684\u503c\u662f\u5426\u76f8\u7b49，\u5e95\u5c42\u8c03\u7528\u5bf9\u8c61\u9b54\u6cd5\u65b9\u6cd5 __eq__()\u3002
    \n\u53ea\u8981\u5bf9\u8c61\u91cd\u5199__eq__，\u5c31\u53ef\u4ee5\u81ea\u5b9a\u4e49\u76f8\u7b49\u5224\u5b9a\u89c4\u5219\u3002<\/p>\n

    list1 =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
    \nlist2 =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
    \nprint<\/span>(<\/span>list1 ==<\/span> list2)<\/span> # True，\u503c\u76f8\u7b49<\/span>
    \nprint<\/span>(<\/span>list1 is<\/span> list2)<\/span> # False，\u4e0d\u662f\u540c\u4e00\u4e2a\u5bf9\u8c61<\/span><\/p>\n

    \u7b80\u5355\u7406\u89e3：==\u5173\u5fc3\u5185\u5bb9，\u4e0d\u5173\u5fc3\u5185\u5b58\u5730\u5740\u3002<\/p>\n

    048 \u8eab\u4efd\u8fd0\u7b97\u7b26\u7684\u7279\u8d28<\/h3>\n

    is \u4e0d\u5bf9\u6bd4\u6570\u503c，\u76f4\u63a5\u5bf9\u6bd4\u5185\u5b58\u5730\u5740 id() \u8fd4\u56de\u503c\u3002
    \nPython\u5bf9\u5c0f\u6574\u6570\u6c60\u3001\u77ed\u5b57\u7b26\u4e32\u5e38\u91cf\u6c60\u505a\u7f13\u5b58\u4f18\u5316，\u4f1a\u51fa\u73b0\u770b\u4f3c\u5947\u602a\u7684\u73b0\u8c61：<\/p>\n

    a =<\/span> 20<\/span>
    \nb =<\/span> 20<\/span>
    \nprint<\/span>(<\/span>a is<\/span> b)<\/span> # True，\u5c0f\u6574\u6570\u7f13\u5b58<\/span><\/p>\n

    m =<\/span> 300<\/span>
    \nn =<\/span> 300<\/span>
    \nprint<\/span>(<\/span>m is<\/span> n)<\/span> # \u4ea4\u4e92\u5f0f\u73af\u5883\u5927\u6982\u7387False，\u8d85\u51fa\u5c0f\u6574\u6570\u8303\u56f4<\/span><\/p>\n

    s1 =<\/span> "hello"<\/span>
    \ns2 =<\/span> "hello"<\/span>
    \nprint<\/span>(<\/span>s1 is<\/span> s2)<\/span><\/p>\n

    \u7f13\u5b58\u673a\u5236\u662f\u89e3\u91ca\u5668\u4f18\u5316\u624b\u6bb5，\u4e0d\u80fd\u4f9d\u9760is\u5224\u65ad\u6570\u503c\u662f\u5426\u76f8\u7b49\u3002<\/p>\n

    049 \u603b\u7ed3and\u548cor\u7684\u7528\u6cd5<\/h3>\n

    and \u548c or \u4e0d\u4e00\u5b9a\u8fd4\u56de\u5e03\u5c14\u503c，\u4f1a\u8fd4\u56de\u5b9e\u9645\u53c2\u4e0e\u8fd0\u7b97\u7684\u5bf9\u8c61，\u8fd9\u662fPython\u72ec\u6709\u7279\u6027\u3002<\/p>\n

      \n
    • and：\u9047\u5230\u5047\u503c，\u8fd4\u56de\u7b2c\u4e00\u4e2a\u5047\u503c；\u5168\u90e8\u4e3a\u771f，\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u771f\u503c<\/li>\n
    • or：\u9047\u5230\u771f\u503c，\u8fd4\u56de\u7b2c\u4e00\u4e2a\u771f\u503c；\u5168\u90e8\u4e3a\u5047，\u8fd4\u56de\u6700\u540e\u4e00\u4e2a\u5047\u503c<\/li>\n<\/ul>\n

      print<\/span>(<\/span>0<\/span> and<\/span> 100<\/span>)<\/span> # 0<\/span>
      \nprint<\/span>(<\/span>20<\/span> and<\/span> 100<\/span>)<\/span> # 100<\/span>
      \nprint<\/span>(<\/span>0<\/span> or<\/span> 100<\/span>)<\/span> # 100<\/span>
      \nprint<\/span>(<\/span>20<\/span> or<\/span> 100<\/span>)<\/span> # 20<\/span><\/p>\n

      # \u5e38\u7528\u5c0f\u6280\u5de7：\u7b80\u6613\u9ed8\u8ba4\u503c<\/span>
      \nname =<\/span> input<\/span>(<\/span>"\u8f93\u5165\u59d3\u540d："<\/span>)<\/span> or<\/span> "\u533f\u540d\u7528\u6237"<\/span>
      \nprint<\/span>(<\/span>name)<\/span><\/p>\n

      050 is\u8fd0\u7b97\u7b26\u548c\u201c==\u201d\u8fd0\u7b97\u7b26\u7684\u533a\u522b<\/h3>\n
    • ==：\u503c\u76f8\u7b49\u5224\u65ad，\u8c03\u7528__eq__；<\/li>\n
    • is：\u540c\u4e00\u6027\u5224\u65ad，\u5224\u65adid()\u5185\u5b58\u5730\u5740\u5b8c\u5168\u4e00\u81f4；<\/li>\n

      x =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>]<\/span>
      \ny =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>]<\/span>
      \nprint<\/span>(<\/span>x ==<\/span> y)<\/span> # True \u5185\u5bb9\u76f8\u540c<\/span>
      \nprint<\/span>(<\/span>x is<\/span> y)<\/span> # False \u4e24\u5757\u5185\u5b58<\/span><\/p>\n

      num1 =<\/span> 5<\/span>
      \nnum2 =<\/span> 5<\/span>
      \nprint<\/span>(<\/span>num1 ==<\/span> num2)<\/span>
      \nprint<\/span>(<\/span>num1 is<\/span> num2)<\/span><\/p>\n

      \u4f7f\u7528\u51c6\u5219：<\/p>\n

        \n
      • \u5224\u65ad\u6570\u503c\u3001\u5b57\u7b26\u4e32\u5185\u5bb9\u76f8\u7b49，\u4f7f\u7528 ==；<\/li>\n
      • \u5224\u65ad\u53d8\u91cf\u662f\u5426\u4e3aNone，\u89c4\u8303\u5199\u6cd5\u5fc5\u987b\u4f7f\u7528 is None\u3002<\/li>\n<\/ul>\n

        051 \u4ec0\u4e48\u662f\u6761\u4ef6\u8bed\u53e5<\/h3>\n

        \u4ee3\u7801\u9ed8\u8ba4\u4ece\u4e0a\u81f3\u4e0b\u987a\u5e8f\u6267\u884c，\u800c\u6761\u4ef6\u8bed\u53e5\u53ef\u4ee5\u6839\u636e\u6761\u4ef6\u771f\u5047，\u9009\u62e9\u6027\u6267\u884c\u4e0d\u540c\u4ee3\u7801\u5206\u652f，\u5b9e\u73b0\u7a0b\u5e8f\u5206\u652f\u903b\u8f91\u3002
        \n\u6761\u4ef6\u8bed\u53e5\u4f9d\u9760\u5e03\u5c14\u8868\u8fbe\u5f0f\u7ed3\u679c\u505a\u5224\u65ad：\u6761\u4ef6\u7ed3\u679c\u4e3aTrue\u6267\u884c\u5bf9\u5e94\u4ee3\u7801；\u7ed3\u679c\u4e3aFalse\u5219\u8df3\u8fc7\u3002Python\u6761\u4ef6\u8bed\u53e5\u6838\u5fc3\u5173\u952e\u5b57：if\u3001elif\u3001else\u3002<\/p>\n

        # \u57fa\u7840\u903b\u8f91\u6f14\u793a<\/span>
        \nscore =<\/span> 80<\/span>
        \n# \u8868\u8fbe\u5f0f\u7ed3\u679c\u51b3\u5b9a\u5206\u652f\u8d70\u5411<\/span>
        \nif<\/span> score >=<\/span> 60<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u8003\u8bd5\u53ca\u683c"<\/span>)<\/span>
        \nprint<\/span>(<\/span>"\u7a0b\u5e8f\u6267\u884c\u7ed3\u675f"<\/span>)<\/span><\/p>\n

        052 \u6700\u7b80\u5355\u7684if\u8bed\u53e5<\/h3>\n

        \u57fa\u7840\u8bed\u6cd5：<\/p>\n

        if<\/span> \u6761\u4ef6\u8868\u8fbe\u5f0f:<\/span>
        \n \u6267\u884c\u8bed\u53e5\u5757<\/p>\n

        \u5192\u53f7\u4e0d\u80fd\u7701\u7565，\u5185\u90e8\u4ee3\u7801\u5fc5\u987b\u7f29\u8fdb\u3002\u53ea\u6709\u6761\u4ef6\u6210\u7acb\u65f6，\u7f29\u8fdb\u5185\u4ee3\u7801\u624d\u8fd0\u884c；\u4e0d\u6210\u7acb\u76f4\u63a5\u8df3\u8fc7\u3002<\/p>\n

        age =<\/span> 20<\/span>
        \nif<\/span> age >=<\/span> 18<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5df2\u6210\u5e74，\u53ef\u4ee5\u89c2\u770b\u6210\u4eba\u5185\u5bb9"<\/span>)<\/span><\/p>\n

        num =<\/span> 5<\/span>
        \nif<\/span> num %<\/span> 2<\/span> ==<\/span> 0<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u8fd9\u662f\u5076\u6570"<\/span>)<\/span>
        \n# 5\u662f\u5947\u6570，\u6761\u4ef6\u4e0d\u6210\u7acb，\u65e0\u4efb\u4f55\u8f93\u51fa<\/span><\/p>\n

        053 \u4f7f\u7528if\u2026else\u8bed\u53e5<\/h3>\n

        \u63d0\u4f9b\u4e24\u6761\u5206\u652f：\u6761\u4ef6\u6210\u7acb\u6267\u884cif\u5757；\u4e0d\u6210\u7acb\u6267\u884celse\u5757，\u4e8c\u9009\u4e00\u3002
        \n\u8bed\u6cd5：<\/p>\n

        if<\/span> \u6761\u4ef6\u8868\u8fbe\u5f0f:<\/span>
        \n \u8bed\u53e5\u57571<\/span>
        \nelse<\/span>:<\/span>
        \n \u8bed\u53e5\u57572<\/span><\/p>\n

        age =<\/span> 16<\/span>
        \nif<\/span> age >=<\/span> 18<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u6210\u5e74\u4eba"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u672a\u6210\u5e74\u4eba"<\/span>)<\/span><\/p>\n

        n =<\/span> 7<\/span>
        \nif<\/span> n %<\/span> 2<\/span> ==<\/span> 0<\/span>:<\/span>
        \n print<\/span>(<\/span>f"<\/span>{<\/span>n}<\/span><\/span> \u662f\u5076\u6570"<\/span><\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>f"<\/span>{<\/span>n}<\/span><\/span> \u662f\u5947\u6570"<\/span><\/span>)<\/span><\/p>\n

        054 \u4f7f\u7528if\u2026elif\u2026else\u8bed\u53e5<\/h3>\n

        \u591a\u5206\u652f\u9009\u62e9\u7ed3\u6784，\u5b9e\u73b0\u591a\u9009\u4e00\u3002\u7a0b\u5e8f\u81ea\u4e0a\u800c\u4e0b\u4f9d\u6b21\u5224\u65ad，\u547d\u4e2d\u7b2c\u4e00\u4e2a\u6210\u7acb\u6761\u4ef6\u540e\u6267\u884c\u5bf9\u5e94\u4ee3\u7801，\u540e\u7eed\u5206\u652f\u4e0d\u518d\u5224\u65ad\u3002else\u4e3a\u53ef\u9009\u515c\u5e95\u5206\u652f\u3002
        \n\u8bed\u6cd5：<\/p>\n

        if<\/span> \u6761\u4ef61<\/span>:<\/span>
        \n \u8bed\u53e5\u57571<\/span>
        \nelif<\/span> \u6761\u4ef62<\/span>:<\/span>
        \n \u8bed\u53e5\u57572<\/span>
        \nelif<\/span> \u6761\u4ef63<\/span>:<\/span>
        \n \u8bed\u53e5\u57573<\/span>
        \nelse<\/span>:<\/span>
        \n \u515c\u5e95\u8bed\u53e5<\/p>\n

        score =<\/span> 85<\/span>
        \nif<\/span> score >=<\/span> 90<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u4f18\u79c0"<\/span>)<\/span>
        \nelif<\/span> score >=<\/span> 80<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u826f\u597d"<\/span>)<\/span>
        \nelif<\/span> score >=<\/span> 60<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u53ca\u683c"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u4e0d\u53ca\u683c"<\/span>)<\/span><\/p>\n

        055 if\u8bed\u53e5\u7684\u5d4c\u5957<\/h3>\n

        \u5728\u4e00\u4e2aif\/elif\/else\u4ee3\u7801\u5757\u5185\u90e8，\u7ee7\u7eed\u4e66\u5199\u6761\u4ef6\u5224\u65ad，\u5f62\u6210\u5d4c\u5957\u7ed3\u6784\u3002\u9002\u5408\u591a\u5c42\u7ea7\u3001\u9012\u8fdb\u5f0f\u5224\u65ad\u3002
        \n\u26a0\ufe0f\u91cd\u70b9：\u4e25\u683c\u63a7\u5236\u7f29\u8fdb\u5c42\u7ea7，\u7f29\u8fdb\u6df7\u4e71\u76f4\u63a5\u5bfc\u81f4\u903b\u8f91\u9519\u8bef\u3002<\/p>\n

        age =<\/span> 22<\/span>
        \nhas_id =<\/span> True<\/span>
        \nif<\/span> age >=<\/span> 18<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5e74\u9f84\u8fbe\u6807"<\/span>)<\/span>
        \n if<\/span> has_id:<\/span>
        \n print<\/span>(<\/span>"\u62e5\u6709\u8bc1\u4ef6，\u53ef\u4ee5\u8fdb\u5165"<\/span>)<\/span>
        \n else<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u7f3a\u5c11\u8bc1\u4ef6，\u7981\u6b62\u8fdb\u5165"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5e74\u9f84\u4e0d\u8db3，\u7981\u6b62\u8fdb\u5165"<\/span>)<\/span><\/p>\n

        056 \u4f7f\u7528elif\u5b9e\u73b0switch\u8bed\u53e5\u529f\u80fd<\/h3>\n

        Java\u3001C\u8bed\u8a00\u62e5\u6709switch\u5339\u914d\u8bed\u6cd5，Python\u539f\u751f\u6ca1\u6709switch（\u65e7\u7248\u672c）\u3002\u6700\u7b80\u5355\u7684\u66ff\u4ee3\u65b9\u6848\u5c31\u662f\u8fde\u7eedelif，\u6839\u636e\u53d8\u91cf\u4e0d\u540c\u53d6\u503c\u5339\u914d\u5206\u652f\u3002<\/p>\n

        day =<\/span> 3<\/span>
        \nif<\/span> day ==<\/span> 1<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u661f\u671f\u4e00"<\/span>)<\/span>
        \nelif<\/span> day ==<\/span> 2<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u661f\u671f\u4e8c"<\/span>)<\/span>
        \nelif<\/span> day ==<\/span> 3<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u661f\u671f\u4e09"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u672a\u77e5\u65e5\u671f"<\/span>)<\/span><\/p>\n

        \u4f18\u70b9：\u5199\u6cd5\u76f4\u89c2\u3001\u65b0\u624b\u5bb9\u6613\u7406\u89e3；\u7f3a\u70b9：\u5206\u652f\u975e\u5e38\u591a\u65f6\u4ee3\u7801\u5197\u957f\u3002<\/p>\n

        057 \u4f7f\u7528\u5b57\u5178\u5b9e\u73b0switch\u8bed\u53e5\u529f\u80fd<\/h3>\n

        \u5229\u7528\u5b57\u5178\u952e\u503c\u6620\u5c04\u6a21\u62df\u5206\u652f，\u952e\u4f5c\u4e3a\u5339\u914d\u6761\u4ef6，\u503c\u7ed1\u5b9a\u51fd\u6570，\u5b9e\u73b0\u7b80\u6d01\u7684\u591a\u5206\u652f\u5206\u53d1，\u4ee3\u7801\u66f4\u52a0\u6e05\u723d\u3002<\/p>\n

        def<\/span> case_one<\/span>(<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u6267\u884c\u5206\u652f1"<\/span>)<\/span><\/p>\n

        def<\/span> case_two<\/span>(<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u6267\u884c\u5206\u652f2"<\/span>)<\/span><\/p>\n

        def<\/span> case_default<\/span>(<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u9ed8\u8ba4\u5206\u652f"<\/span>)<\/span><\/p>\n

        switch_dict =<\/span> {<\/span>
        \n 1<\/span>:<\/span> case_one,<\/span>
        \n 2<\/span>:<\/span> case_two
        \n}<\/span><\/p>\n

        select =<\/span> 2<\/span>
        \n# get\u83b7\u53d6\u5bf9\u5e94\u51fd\u6570，\u627e\u4e0d\u5230\u6267\u884c\u9ed8\u8ba4\u5206\u652f<\/span>
        \nfunc =<\/span> switch_dict.<\/span>get(<\/span>select,<\/span> case_default)<\/span>
        \nfunc(<\/span>)<\/span><\/p>\n

        058 \u81ea\u5b9a\u4e49\u7f16\u5199\u4e00\u4e2a\u7c7b\u5b9e\u73b0switch\u8bed\u53e5\u529f\u80fd<\/h3>\n

        \u5c01\u88c5\u7c7b，\u6253\u9020\u53ef\u590d\u7528\u7684Switch\u5de5\u5177，\u652f\u6301case\u5339\u914d\u4e0edefault\u515c\u5e95，\u9ad8\u5ea6\u6a21\u4eff\u5176\u4ed6\u8bed\u8a00switch\u98ce\u683c\u3002<\/p>\n

        class<\/span> Switch<\/span>:<\/span>
        \n def<\/span> __init__<\/span>(<\/span>self,<\/span> value)<\/span>:<\/span>
        \n self.<\/span>val =<\/span> value
        \n self.<\/span>has_match =<\/span> False<\/span><\/p>\n

        def<\/span> case<\/span>(<\/span>self,<\/span> case_val)<\/span>:<\/span>
        \n if<\/span> self.<\/span>val ==<\/span> case_val and<\/span> not<\/span> self.<\/span>has_match:<\/span>
        \n self.<\/span>has_match =<\/span> True<\/span>
        \n return<\/span> True<\/span>
        \n return<\/span> False<\/span><\/p>\n

        def<\/span> default<\/span>(<\/span>self)<\/span>:<\/span>
        \n if<\/span> not<\/span> self.<\/span>has_match:<\/span>
        \n return<\/span> True<\/span>
        \n return<\/span> False<\/span><\/p>\n

        # \u8c03\u7528\u793a\u4f8b<\/span>
        \ns =<\/span> Switch(<\/span>4<\/span>)<\/span>
        \nif<\/span> s.<\/span>case<\/span>(<\/span>1<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5339\u914d1"<\/span>)<\/span>
        \nelif<\/span> s.<\/span>case<\/span>(<\/span>2<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5339\u914d2"<\/span>)<\/span>
        \nelif<\/span> s.<\/span>default(<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u6267\u884c\u9ed8\u8ba4\u5206\u652f"<\/span>)<\/span><\/p>\n

        059 \u5256\u6790True\u548cFalse\u6761\u4ef6\u5224\u65ad\u7684\u7528\u6cd5<\/h3>\n

        if\u5224\u65ad\u4e2d，\u4e0d\u4ec5\u4ec5\u53ea\u6709True\/False\u53ef\u4ee5\u5145\u5f53\u6761\u4ef6，Python\u5b58\u5728\u9690\u5f0f\u5e03\u5c14\u8f6c\u6362\u89c4\u5219：
        \n\u5047\u503c（Falsy）：0\u30010.0\u3001""\u3001[]\u3001{}\u3001()\u3001None \u2192 \u7b49\u6548False
        \n\u771f\u503c（Truthy）：\u975e0\u6570\u5b57\u3001\u975e\u7a7a\u5b57\u7b26\u4e32\u3001\u975e\u7a7a\u5bb9\u5668\u5bf9\u8c61 \u2192 \u7b49\u6548True<\/p>\n

        # \u9690\u5f0f\u5e03\u5c14\u8f6c\u6362\u6f14\u793a<\/span>
        \nname =<\/span> ""<\/span>
        \nif<\/span> name:<\/span>
        \n print<\/span>(<\/span>"\u8f93\u5165\u6709\u6548\u59d3\u540d"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u59d3\u540d\u4e3a\u7a7a"<\/span>)<\/span><\/p>\n

        nums =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
        \nif<\/span> nums:<\/span>
        \n print<\/span>(<\/span>"\u5217\u8868\u4e0d\u4e3a\u7a7a"<\/span>)<\/span><\/p>\n

        num =<\/span> 0<\/span>
        \nif<\/span> num:<\/span>
        \n print<\/span>(<\/span>"\u771f\u503c"<\/span>)<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5047\u503c"<\/span>)<\/span><\/p>\n

        \u5f00\u53d1\u5e38\u7528\u6280\u5de7：\u76f4\u63a5if lst:\u5224\u65ad\u5217\u8868\u662f\u5426\u975e\u7a7a，\u4e0d\u7528\u5199if len(lst) > 0\u3002<\/p>\n

        060 \u518d\u6b21\u63d0\u9192\u4e0d\u652f\u6301switch\u8bed\u53e5\u7684\u95ee\u9898<\/h3>\n

        \u5728Python3.10\u4e4b\u524d，\u8bed\u8a00\u539f\u751f\u4e0d\u5b58\u5728switch-case\u5173\u952e\u5b57，\u53ea\u80fd\u901a\u8fc7elif\u3001\u5b57\u5178\u3001\u81ea\u5b9a\u4e49\u7c7b\u6a21\u62df\u5b9e\u73b0\u3002<\/p>\n

        \u8865\u5145\u77e5\u8bc6\u70b9：Python3.10\u65b0\u589e match-case \u6a21\u5f0f\u5339\u914d，\u662f\u529f\u80fd\u66f4\u5f3a\u5927\u7684\u5347\u7ea7\u7248switch，\u4f46\u548c\u4f20\u7edfswitch\u4ecd\u6709\u533a\u522b\u3002<\/p>\n

        # Python3.10+ match-case\u793a\u4f8b，\u4f9b\u4e86\u89e3<\/span>
        \nnum =<\/span> 2<\/span>
        \nmatch<\/span> num:<\/span>
        \n case<\/span> 1<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u4e00"<\/span>)<\/span>
        \n case<\/span> 2<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u4e8c"<\/span>)<\/span>
        \n case<\/span> _<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5176\u4ed6"<\/span>)<\/span><\/p>\n

        \u5b66\u4e60\u5efa\u8bae：\u521d\u5b66\u9636\u6bb5\u4e0d\u8981\u4f9d\u8d56match-case，\u4f18\u5148\u719f\u7ec3\u638c\u63e1if-elif-else；\u4fdd\u8bc1\u4ee3\u7801\u62e5\u6709\u66f4\u597d\u7684\u7248\u672c\u517c\u5bb9\u6027\u3002<\/p>\n

        061 \u6700\u7b80\u6d01\u7684\u6761\u4ef6\u5224\u65ad\u8bed\u53e5\u5199\u6cd5<\/h3>\n

        Python\u63d0\u4f9b\u4e09\u5143\u8868\u8fbe\u5f0f，\u628a\u7b80\u5355if-else\u538b\u7f29\u6210\u4e00\u884c，\u9002\u5408\u7b80\u77ed\u8d4b\u503c\u573a\u666f\u3002
        \n\u8bed\u6cd5：\u53d8\u91cf = \u6ee1\u8db3\u6761\u4ef6\u7684\u503c if \u6761\u4ef6 else \u4e0d\u6ee1\u8db3\u6761\u4ef6\u7684\u503c<\/p>\n

        age =<\/span> 20<\/span>
        \nres =<\/span> "\u6210\u5e74"<\/span> if<\/span> age >=<\/span> 18<\/span> else<\/span> "\u672a\u6210\u5e74"<\/span>
        \nprint<\/span>(<\/span>res)<\/span><\/p>\n

        num =<\/span> 7<\/span>
        \nmsg =<\/span> "\u5076\u6570"<\/span> if<\/span> num %<\/span> 2<\/span> ==<\/span> 0<\/span> else<\/span> "\u5947\u6570"<\/span>
        \nprint<\/span>(<\/span>msg)<\/span><\/p>\n

        # \u4e0d\u5efa\u8bae\u591a\u5c42\u4e09\u5143\u8868\u8fbe\u5f0f\u5d4c\u5957，\u53ef\u8bfb\u6027\u4f1a\u6025\u5267\u4e0b\u964d<\/span><\/p>\n

        062 \u4f7f\u7528for\u5faa\u73af\u8bed\u53e5<\/h3>\n

        for\u5faa\u73af\u5c5e\u4e8e\u904d\u5386\u5faa\u73af，\u7528\u4e8e\u4f9d\u6b21\u53d6\u51fa\u5e8f\u5217（\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u5143\u7ec4\u3001range\u7b49）\u91cc\u6bcf\u4e00\u4e2a\u5143\u7d20，\u91cd\u590d\u6267\u884c\u4ee3\u7801\u5757\u3002Python\u7684for\u548cC\/C++\u98ce\u683cfor\u4e0d\u540c，\u662f\u9762\u5411\u53ef\u8fed\u4ee3\u5bf9\u8c61\u904d\u5386\u3002<\/p>\n

        # \u904d\u5386\u5b57\u7b26\u4e32<\/span>
        \nfor<\/span> char in<\/span> "Python"<\/span>:<\/span>
        \n print<\/span>(<\/span>char)<\/span><\/p>\n

        063 \u57fa\u672c\u7684for\u5faa\u73af\u8bed\u53e5<\/h3>\n

        \u6807\u51c6\u57fa\u7840\u5199\u6cd5：<\/p>\n

        fruits =<\/span> [<\/span>"\u82f9\u679c"<\/span>,<\/span> "\u9999\u8549"<\/span>,<\/span> "\u6a59\u5b50"<\/span>]<\/span>
        \nfor<\/span> fruit in<\/span> fruits:<\/span>
        \n print<\/span>(<\/span>f"\u6c34\u679c\u540d\u79f0：<\/span>{<\/span>fruit}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

        \u6267\u884c\u6d41\u7a0b：\u9010\u4e2a\u53d6\u51fafruits\u5185\u5143\u7d20\u8d4b\u503c\u7ed9fruit，\u6267\u884c\u7f29\u8fdb\u5185\u4ee3\u7801；\u5168\u90e8\u904d\u5386\u5b8c\u6bd5，\u5faa\u73af\u7ed3\u675f\u3002<\/p>\n

        064 \u901a\u8fc7\u5e8f\u5217\u7d22\u5f15\u8fed\u4ee3<\/h3>\n

        \u6709\u65f6\u9700\u8981\u540c\u65f6\u62ff\u5230\u5143\u7d20\u4e0b\u6807\u4e0e\u5185\u5bb9，\u53ef\u4ee5\u642d\u914drange()+len()\u5b9e\u73b0\u7d22\u5f15\u904d\u5386\u3002<\/p>\n

        fruits =<\/span> [<\/span>"\u82f9\u679c"<\/span>,<\/span> "\u9999\u8549"<\/span>,<\/span> "\u6a59\u5b50"<\/span>]<\/span>
        \nfor<\/span> i in<\/span> range<\/span>(<\/span>len<\/span>(<\/span>fruits)<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>f"\u7d22\u5f15<\/span>{<\/span>i}<\/span><\/span>，\u5185\u5bb9：<\/span>{<\/span>fruits[<\/span>i]<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span>
        \n# \u66f4\u63a8\u8350enumerate（\u540e\u7eed\u5e38\u7528）<\/span>
        \nfor<\/span> idx,<\/span> val in<\/span> enumerate<\/span>(<\/span>fruits)<\/span>:<\/span>
        \n print<\/span>(<\/span>f"\u7d22\u5f15<\/span>{<\/span>idx}<\/span><\/span>，\u5185\u5bb9：<\/span>{<\/span>val}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

        065 \u4f7f\u7528for\u2026else\u5faa\u73af\u8bed\u53e5<\/h3>\n

        else\u7ed1\u5b9afor\u5faa\u73af：\u6b63\u5e38\u904d\u5386\u7ed3\u675f\u3001\u6ca1\u6709\u88abbreak\u6253\u65ad\u65f6，\u624d\u6267\u884celse\u4ee3\u7801\u5757；break\u8df3\u51fa\u5faa\u73af\u5219else\u4e0d\u8fd0\u884c\u3002<\/p>\n

        nums =<\/span> [<\/span>1<\/span>,<\/span> 3<\/span>,<\/span> 5<\/span>,<\/span> 7<\/span>]<\/span>
        \nfor<\/span> n in<\/span> nums:<\/span>
        \n if<\/span> n ==<\/span> 4<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u627e\u5230\u6570\u5b574"<\/span>)<\/span>
        \n break<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"\u5faa\u73af\u6b63\u5e38\u7ed3\u675f，\u6ca1\u6709\u6267\u884cbreak，\u672a\u627e\u52304"<\/span>)<\/span><\/p>\n

        066 \u5d4c\u5957for\u5faa\u73af\u8bed\u53e5<\/h3>\n

        \u5faa\u73af\u5185\u90e8\u518d\u5199\u5faa\u73af，\u5e38\u7528\u4e8e\u4e8c\u7ef4\u6570\u636e\u3001\u4e5d\u4e5d\u4e58\u6cd5\u8868\u7b49\u573a\u666f\u3002\u5916\u5c42\u5faa\u73af\u8d70\u4e00\u6b21，\u5185\u5c42\u5b8c\u6574\u8dd1\u5b8c\u4e00\u8f6e\u3002<\/p>\n

        # \u4e5d\u4e5d\u4e58\u6cd5\u8868\u793a\u4f8b<\/span>
        \nfor<\/span> i in<\/span> range<\/span>(<\/span>1<\/span>,<\/span> 10<\/span>)<\/span>:<\/span>
        \n for<\/span> j in<\/span> range<\/span>(<\/span>1<\/span>,<\/span> i+<\/span>1<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>f"<\/span>{<\/span>j}<\/span><\/span>\u00d7<\/span>{<\/span>i}<\/span><\/span>=<\/span>{<\/span>i*<\/span>j}<\/span><\/span>"<\/span><\/span>,<\/span> end=<\/span>"\\\\t"<\/span>)<\/span>
        \n print<\/span>(<\/span>)<\/span><\/p>\n

        067 \u4f7f\u7528while\u5faa\u73af\u8bed\u53e5<\/h3>\n

        while\u5c5e\u4e8e\u6761\u4ef6\u5faa\u73af，\u53ea\u8981\u6761\u4ef6\u8868\u8fbe\u5f0f\u7ed3\u679c\u4e3aTrue，\u5c31\u6301\u7eed\u6267\u884c\u5faa\u73af\u4f53；\u9002\u5408\u5faa\u73af\u6b21\u6570\u4e0d\u786e\u5b9a\u7684\u573a\u666f\u3002<\/p>\n

        068 \u57fa\u672c\u7684while\u5faa\u73af\u8bed\u53e5<\/h3>\n

        \u8bed\u6cd5：<\/p>\n

        while<\/span> \u6761\u4ef6:<\/span>
        \n \u5faa\u73af\u4ee3\u7801\u5757<\/p>\n

        i =<\/span> 1<\/span>
        \nwhile<\/span> i <=<\/span> 5<\/span>:<\/span>
        \n print<\/span>(<\/span>i)<\/span>
        \n i =<\/span> i +<\/span> 1<\/span> # \u52a1\u5fc5\u66f4\u65b0\u8ba1\u6570\u5668，\u9632\u6b62\u6b7b\u5faa\u73af<\/span><\/p>\n

        069 \u4f7f\u7528while\u2026else\u5faa\u73af\u8bed\u53e5<\/h3>\n

        \u89c4\u5219\u548cfor\u2026else\u5b8c\u5168\u4e00\u81f4：\u5faa\u73af\u6b63\u5e38\u7ed3\u675f（\u975ebreak\u9000\u51fa）\u6267\u884celse\u3002<\/p>\n

        i =<\/span> 1<\/span>
        \nwhile<\/span> i <=<\/span> 3<\/span>:<\/span>
        \n print<\/span>(<\/span>i)<\/span>
        \n i +=<\/span> 1<\/span>
        \nelse<\/span>:<\/span>
        \n print<\/span>(<\/span>"while\u5faa\u73af\u6b63\u5e38\u6267\u884c\u5b8c\u6bd5"<\/span>)<\/span><\/p>\n

        070 \u6b7b\u5faa\u73af\u95ee\u9898<\/h3>\n

        \u6761\u4ef6\u6c38\u8fdc\u4e3aTrue，\u4ee3\u7801\u65e0\u9650\u5faa\u73af，\u79f0\u4e3a\u6b7b\u5faa\u73af\u3002<\/p>\n

        # \u5178\u578b\u6b7b\u5faa\u73af，\u8c28\u614e\u8fd0\u884c！<\/span>
        \n# while True:<\/span>
        \n# print("\u65e0\u9650\u8f93\u51fa")<\/span><\/p>\n

        # \u610f\u5916\u4ea7\u751f\u6b7b\u5faa\u73af：\u5fd8\u8bb0\u66f4\u65b0\u53d8\u91cf<\/span>
        \n# i = 0<\/span>
        \n# while i < 10:<\/span>
        \n# print(i)<\/span>
        \n# # \u7f3a\u5c11 i +=1<\/span><\/p>\n

        \u5e94\u7528\u573a\u666f：\u670d\u52a1\u5e38\u9a7b\u76d1\u542c\u3001\u83dc\u5355\u4ea4\u4e92；\u8c03\u8bd5\u65f6\u53ef\u7528 Ctrl+C \u5f3a\u5236\u7ec8\u6b62\u3002<\/p>\n

        071 \u4f7f\u7528while\u5faa\u73af\u5d4c\u5957\u8bed\u53e5<\/h3>\n

        while\u5185\u90e8\u5d4c\u5957while\u5faa\u73af\u3002<\/p>\n

        i =<\/span> 1<\/span>
        \nwhile<\/span> i <=<\/span> 3<\/span>:<\/span>
        \n j =<\/span> 1<\/span>
        \n while<\/span> j <=<\/span> 2<\/span>:<\/span>
        \n print<\/span>(<\/span>f"i=<\/span>{<\/span>i}<\/span><\/span>, j=<\/span>{<\/span>j}<\/span><\/span>"<\/span><\/span>,<\/span> end=<\/span>" | "<\/span>)<\/span>
        \n j +=<\/span> 1<\/span>
        \n print<\/span>(<\/span>)<\/span>
        \n i +=<\/span> 1<\/span><\/p>\n

        072 \u4f7f\u7528break\u5faa\u73af\u63a7\u5236\u8bed\u53e5<\/h3>\n

        break \u7acb\u523b\u7ec8\u6b62\u5f53\u524d\u6240\u5728\u5faa\u73af，\u76f4\u63a5\u8df3\u51fa\u5faa\u73af，\u540e\u7eed\u5faa\u73af\u4e0d\u518d\u6267\u884c\u3002<\/p>\n

        for<\/span> i in<\/span> range<\/span>(<\/span>1<\/span>,<\/span> 10<\/span>)<\/span>:<\/span>
        \n if<\/span> i ==<\/span> 5<\/span>:<\/span>
        \n break<\/span>
        \n print<\/span>(<\/span>i)<\/span>
        \n# \u8f93\u51fa：1 2 3 4<\/span><\/p>\n

        073 \u4f7f\u7528continue\u5faa\u73af\u63a7\u5236\u8bed\u53e5<\/h3>\n

        continue \u7ec8\u6b62\u672c\u6b21\u5faa\u73af，\u76f4\u63a5\u8fdb\u5165\u4e0b\u4e00\u8f6e\u6761\u4ef6\u5224\u65ad，\u4e0d\u4f1a\u8df3\u51fa\u6574\u4e2a\u5faa\u73af\u3002<\/p>\n

        for<\/span> i in<\/span> range<\/span>(<\/span>1<\/span>,<\/span>6<\/span>)<\/span>:<\/span>
        \n if<\/span> i ==<\/span> 3<\/span>:<\/span>
        \n continue<\/span>
        \n print<\/span>(<\/span>i)<\/span>
        \n# \u8f93\u51fa：1 2 4 5<\/span><\/p>\n

        074 \u4f7f\u7528pass\u5faa\u73af\u63a7\u5236\u8bed\u53e5<\/h3>\n

        pass\u662f\u7a7a\u8bed\u53e5，\u5360\u4f4d\u7b26，\u4e0d\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002\u4fdd\u6301\u8bed\u6cd5\u5b8c\u6574\u6027，\u9632\u6b62\u4ee3\u7801\u62a5\u9519，\u65b9\u4fbf\u540e\u7eed\u8865\u5145\u903b\u8f91\u3002<\/p>\n

        for<\/span> i in<\/span> range<\/span>(<\/span>3<\/span>)<\/span>:<\/span>
        \n if<\/span> i ==<\/span> 1<\/span>:<\/span>
        \n pass<\/span> # \u6682\u65f6\u9884\u7559\u4f4d\u7f6e，\u540e\u7eed\u5199\u4ee3\u7801<\/span>
        \n else<\/span>:<\/span>
        \n print<\/span>(<\/span>i)<\/span><\/p>\n

        075 \u603b\u7ed3for\u5faa\u73af\u8bed\u53e5<\/h3>\n
      • for\u5faa\u73af\u7528\u4e8e\u904d\u5386\u53ef\u8fed\u4ee3\u5bf9\u8c61：\u5217\u8868\u3001\u5b57\u7b26\u4e32\u3001\u5143\u7ec4\u3001range\u3001\u96c6\u5408\u7b49；<\/li>\n
      • \u4f18\u5148\u7528\u4e8e\u5faa\u73af\u6b21\u6570\u5df2\u77e5\u573a\u666f；<\/li>\n
      • \u642d\u914drange()\u751f\u6210\u8fde\u7eed\u6570\u5b57；enumerate()\u540c\u65f6\u83b7\u53d6\u7d22\u5f15\u548c\u503c；<\/li>\n
      • \u652f\u6301for\u2026else\u7ed3\u6784；<\/li>\n
      • \u53ef\u7528break\u7ec8\u6b62\u3001continue\u8df3\u8fc7\u672c\u6b21\u8fed\u4ee3\u3002<\/li>\n

        # range\u7528\u6cd5\u56de\u987e<\/span>
        \nfor<\/span> num in<\/span> range<\/span>(<\/span>2<\/span>,<\/span>10<\/span>,<\/span>2<\/span>)<\/span>:<\/span>
        \n print<\/span>(<\/span>num)<\/span> # 2 4 6 8<\/span><\/p>\n

        076 \u603b\u7ed3break\u548ccontinue\u8bed\u53e5<\/h3>\n
          \n
        • break：\u8df3\u51fa\u6574\u4e2a\u5faa\u73af，\u5faa\u73af\u5f7b\u5e95\u7ed3\u675f；<\/li>\n
        • continue：\u4ec5\u8df3\u8fc7\u5f53\u524d\u8fd9\u4e00\u8f6e，\u9a6c\u4e0a\u5f00\u542f\u4e0b\u4e00\u8f6e；
          \n\u26a0\ufe0f\u6ce8\u610f：\u4e24\u8005\u53ea\u4f5c\u7528\u4e8e\u6700\u5185\u5c42\u5faa\u73af，\u5916\u5c42\u5faa\u73af\u4e0d\u53d7\u5f71\u54cd\u3002<\/li>\n<\/ul>\n

          for<\/span> i in<\/span> range<\/span>(<\/span>1<\/span>,<\/span>4<\/span>)<\/span>:<\/span>
          \n print<\/span>(<\/span>f"\u5916\u5c42<\/span>{<\/span>i}<\/span><\/span>"<\/span><\/span>)<\/span>
          \n for<\/span> j in<\/span> range<\/span>(<\/span>1<\/span>,<\/span>4<\/span>)<\/span>:<\/span>
          \n if<\/span> j ==<\/span> 2<\/span>:<\/span>
          \n break<\/span>
          \n print<\/span>(<\/span>f"\u5185\u5c42<\/span>{<\/span>j}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

          077 \u4f7f\u7528while\u5faa\u73af\u7684\u6ce8\u610f\u4e8b\u9879<\/h3>\n
        • \u5faa\u73af\u4f53\u5185\u8bb0\u5f97\u66f4\u65b0\u6761\u4ef6\u53d8\u91cf，\u907f\u514d\u6b7b\u5faa\u73af；<\/li>\n
        • while True\u6b7b\u5faa\u73af\u4e00\u5b9a\u8981\u8bbe\u8ba1\u51fa\u53e3（break）；<\/li>\n
        • \u590d\u6742\u6761\u4ef6\u5c3d\u91cf\u7528\u62ec\u53f7\u533a\u5206\u4f18\u5148\u7ea7；<\/li>\n
        • while\u2026else\u4e0d\u8981\u6ee5\u7528，\u5bb9\u6613\u9020\u6210\u9605\u8bfb\u56f0\u60d1；<\/li>\n
        • \u4e0d\u786e\u5b9a\u5faa\u73af\u6b21\u6570\u4f18\u5148while；\u786e\u5b9a\u904d\u5386\u8303\u56f4\u4f18\u5148for\u3002<\/li>\n

          # \u5e26\u9000\u51fa\u6761\u4ef6\u7684\u4ea4\u4e92\u5f0fwhile<\/span>
          \nwhile<\/span> True<\/span>:<\/span>
          \n cmd =<\/span> input<\/span>(<\/span>"\u8f93\u5165q\u9000\u51fa："<\/span>)<\/span>
          \n if<\/span> cmd ==<\/span> "q"<\/span>:<\/span>
          \n break<\/span>
          \n print<\/span>(<\/span>f"\u4f60\u8f93\u5165：<\/span>{<\/span>cmd}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

          078 \u521b\u5efa\u6570\u5b57\u5217\u8868<\/h3>\n

          \u5217\u8868list\u662f\u6709\u5e8f\u53ef\u53d8\u5bb9\u5668，\u5b58\u653e\u4e00\u7ec4\u6570\u636e，\u7528[]\u5b9a\u4e49\u3002<\/p>\n

          # \u65b9\u5f0f1：\u76f4\u63a5\u5b9a\u4e49<\/span>
          \nnum_list =<\/span> [<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>,<\/span> 40<\/span>]<\/span>
          \n# \u65b9\u5f0f2：list\u8f6c\u6362\u53ef\u8fed\u4ee3\u5bf9\u8c61<\/span>
          \nnum_list2 =<\/span> list<\/span>(<\/span>range<\/span>(<\/span>1<\/span>,<\/span>6<\/span>)<\/span>)<\/span>
          \nprint<\/span>(<\/span>num_list2)<\/span> # [1,2,3,4,5]<\/span>
          \n# \u6df7\u5408\u7c7b\u578b\u5217\u8868（\u4e0d\u63a8\u8350\u9891\u7e41\u6df7\u7528）<\/span>
          \nmix_list =<\/span> [<\/span>100<\/span>,<\/span> "python"<\/span>,<\/span> 3.14<\/span>]<\/span>
          \nprint<\/span>(<\/span>mix_list)<\/span><\/p>\n

          079 \u8bbf\u95ee\u5217\u8868\u4e2d\u7684\u503c<\/h3>\n

          \u901a\u8fc7\u7d22\u5f15\u3001\u5207\u7247\u53d6\u503c；\u7d22\u5f15\u4ece0\u5f00\u59cb，\u652f\u6301\u8d1f\u7d22\u5f15\u3002<\/p>\n

          lst =<\/span> [<\/span>"A"<\/span>,<\/span>"B"<\/span>,<\/span>"C"<\/span>,<\/span>"D"<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>0<\/span>]<\/span>)<\/span> # A<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>–<\/span>1<\/span>]<\/span>)<\/span> # D<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>1<\/span>:<\/span>3<\/span>]<\/span>)<\/span> # ['B', 'C']<\/span><\/p>\n

          # \u4e0d\u8981\u8bbf\u95ee\u8d85\u51fa\u8303\u56f4\u7d22\u5f15，\u4f1a\u89e6\u53d1IndexError<\/span>
          \n# print(lst[10])<\/span><\/p>\n

          080 \u4f7f\u7528\u5217\u8868\u4e2d\u7684\u503c<\/h3>\n

          \u53d6\u51fa\u5217\u8868\u5143\u7d20\u53c2\u4e0e\u8fd0\u7b97\u3001\u5224\u65ad\u3001\u62fc\u63a5\u7b49\u903b\u8f91\u3002<\/p>\n

          score_list =<\/span> [<\/span>88<\/span>,<\/span> 76<\/span>,<\/span> 92<\/span>,<\/span> 59<\/span>]<\/span>
          \ntotal =<\/span> 0<\/span>
          \nfor<\/span> s in<\/span> score_list:<\/span>
          \n total +=<\/span> s
          \navg =<\/span> total \/<\/span> len<\/span>(<\/span>score_list)<\/span>
          \nprint<\/span>(<\/span>f"\u603b\u5206：<\/span>{<\/span>total}<\/span><\/span>，\u5e73\u5747\u5206：<\/span>{<\/span>avg:<\/span>.2f<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span><\/p>\n

          # \u5224\u65ad\u5143\u7d20\u662f\u5426\u5728\u5217\u8868\u5185<\/span>
          \nif<\/span> 92<\/span> in<\/span> score_list:<\/span>
          \n print<\/span>(<\/span>"\u5b58\u572892\u5206"<\/span>)<\/span><\/p>\n

          081 \u66f4\u65b0\u5217\u8868\u5143\u7d20<\/h3>\n

          \u5217\u8868\u662f\u53ef\u53d8\u5e8f\u5217，\u53ef\u901a\u8fc7\u7d22\u5f15\u76f4\u63a5\u8d4b\u503c\u4fee\u6539\u6307\u5b9a\u4f4d\u7f6e\u5143\u7d20\u3002<\/p>\n

          lst =<\/span> [<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>]<\/span>
          \nlst[<\/span>1<\/span>]<\/span> =<\/span> 99<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # [10, 99, 30]<\/span><\/p>\n

          # \u5207\u7247\u6279\u91cf\u4fee\u6539<\/span>
          \nlst[<\/span>0<\/span>:<\/span>2<\/span>]<\/span> =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # [1, 2, 30]<\/span><\/p>\n

          \u6ce8\u610f：\u7d22\u5f15\u4e0d\u80fd\u8d85\u51fa\u5217\u8868\u8303\u56f4，\u5426\u5219\u629b\u51faIndexError\u3002<\/p>\n

          082 \u63d2\u5165\u65b0\u7684\u5143\u7d20<\/h3>\n

          \u4e09\u79cd\u5e38\u7528\u63d2\u5165\u65b9\u5f0f：append()\u5c3e\u90e8\u8ffd\u52a0\u3001insert()\u6307\u5b9a\u4f4d\u7f6e\u63d2\u5165\u3001extend()\u6279\u91cf\u8ffd\u52a0\u5e8f\u5217\u3002<\/p>\n

          nums =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>
          \nnums.<\/span>append(<\/span>4<\/span>)<\/span>
          \nprint<\/span>(<\/span>nums)<\/span> # [1, 2, 3, 4]<\/span><\/p>\n

          nums.<\/span>insert(<\/span>1<\/span>,<\/span> 99<\/span>)<\/span>
          \nprint<\/span>(<\/span>nums)<\/span> # [1, 99, 2, 3, 4]<\/span><\/p>\n

          083 \u5728\u5217\u8868\u4e2d\u5220\u9664\u5143\u7d20<\/h3>\n

          del\u6309\u7d22\u5f15\u5220\u9664\u3001pop()\u5f39\u51fa\u5143\u7d20（\u6709\u8fd4\u56de\u503c）\u3001remove()\u6309\u503c\u5220\u9664\u7b2c\u4e00\u4e2a\u5339\u914d\u9879\u3002<\/p>\n

          lst =<\/span> [<\/span>"a"<\/span>,<\/span> "b"<\/span>,<\/span> "c"<\/span>,<\/span> "d"<\/span>]<\/span>
          \ndel<\/span> lst[<\/span>1<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # ['a', 'c', 'd']<\/span><\/p>\n

          val =<\/span> lst.<\/span>pop(<\/span>)<\/span>
          \nprint<\/span>(<\/span>val)<\/span> # d<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # ['a', 'c']<\/span><\/p>\n

          lst.<\/span>remove(<\/span>"a"<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # ['c']<\/span><\/p>\n

          remove()\u5220\u9664\u4e0d\u5b58\u5728\u5143\u7d20\u4f1a\u62a5\u9519，\u5220\u9664\u524d\u5efa\u8bae\u5148\u7528in\u5224\u65ad\u3002<\/p>\n

          084 \u4f7f\u7528sort()\u65b9\u6cd5\u5bf9\u5217\u8868\u8fdb\u884c\u6c38\u4e45\u6027\u6392\u5e8f<\/h3>\n

          sort()\u76f4\u63a5\u4fee\u6539\u539f\u5217\u8868，\u539f\u5730\u6392\u5e8f，\u65e0\u8fd4\u56de\u503c\u3002<\/p>\n

          nums =<\/span> [<\/span>5<\/span>,<\/span> 2<\/span>,<\/span> 9<\/span>,<\/span> 1<\/span>]<\/span>
          \nnums.<\/span>sort(<\/span>)<\/span>
          \nprint<\/span>(<\/span>nums)<\/span> # [1, 2, 5, 9]<\/span><\/p>\n

          # \u964d\u5e8f\u6392\u5e8f<\/span>
          \nnums.<\/span>sort(<\/span>reverse=<\/span>True<\/span>)<\/span>
          \nprint<\/span>(<\/span>nums)<\/span> # [9, 5, 2, 1]<\/span><\/p>\n

          085 \u4f7f\u7528sorted()\u65b9\u6cd5\u5bf9\u5217\u8868\u8fdb\u884c\u4e34\u65f6\u6392\u5e8f<\/h3>\n

          sorted()\u8fd4\u56de\u65b0\u5217\u8868，\u4e0d\u4f1a\u6539\u52a8\u539f\u59cb\u6570\u636e\u3002<\/p>\n

          nums =<\/span> [<\/span>5<\/span>,<\/span> 2<\/span>,<\/span> 9<\/span>,<\/span> 1<\/span>]<\/span>
          \nnew_nums =<\/span> sorted<\/span>(<\/span>nums)<\/span>
          \nprint<\/span>(<\/span>"\u539f\u5217\u8868："<\/span>,<\/span> nums)<\/span>
          \nprint<\/span>(<\/span>"\u6392\u5e8f\u540e："<\/span>,<\/span> new_nums)<\/span><\/p>\n

          new_desc =<\/span> sorted<\/span>(<\/span>nums,<\/span> reverse=<\/span>True<\/span>)<\/span>
          \nprint<\/span>(<\/span>"\u964d\u5e8f："<\/span>,<\/span> new_desc)<\/span><\/p>\n

          086 \u5012\u5e8f\u8f93\u51fa\u5217\u8868\u4e2d\u7684\u4fe1\u606f<\/h3>\n

          reverse()\u539f\u5730\u53cd\u8f6c\u5217\u8868\u987a\u5e8f\u3002<\/p>\n

          lst =<\/span> [<\/span>1<\/span>,<\/span> 3<\/span>,<\/span> 5<\/span>,<\/span> 7<\/span>]<\/span>
          \nlst.<\/span>reverse(<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst)<\/span> # [7, 5, 3, 1]<\/span><\/p>\n

          # \u5207\u7247\u65b9\u5f0f\u4e34\u65f6\u53cd\u8f6c，\u4e0d\u4fee\u6539\u539f\u5217\u8868<\/span>
          \nlst2 =<\/span> [<\/span>2<\/span>,<\/span>4<\/span>,<\/span>6<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst2[<\/span>:<\/span>:<\/span>–<\/span>1<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst2)<\/span><\/p>\n

          087 \u83b7\u53d6\u5217\u8868\u7684\u957f\u5ea6<\/h3>\n

          \u5185\u7f6e\u51fd\u6570len()\u7edf\u8ba1\u5bb9\u5668\u5185\u5143\u7d20\u603b\u4e2a\u6570\u3002<\/p>\n

          data =<\/span> [<\/span>11<\/span>,<\/span> 22<\/span>,<\/span> 33<\/span>,<\/span> 44<\/span>]<\/span>
          \nprint<\/span>(<\/span>len<\/span>(<\/span>data)<\/span>)<\/span> # 4<\/span><\/p>\n

          empty =<\/span> [<\/span>]<\/span>
          \nprint<\/span>(<\/span>len<\/span>(<\/span>empty)<\/span>)<\/span> # 0<\/span><\/p>\n

          088 \u5217\u8868\u4e2d\u7684\u8fd0\u7b97\u7b26<\/h3>\n

          \u652f\u6301 + \u62fc\u63a5\u3001* \u91cd\u590d\u3001in \u6210\u5458\u5224\u65ad\u3002<\/p>\n

          a =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>]<\/span>
          \nb =<\/span> [<\/span>3<\/span>,<\/span> 4<\/span>]<\/span>
          \nc =<\/span> a +<\/span> b
          \nprint<\/span>(<\/span>c)<\/span> # [1, 2, 3, 4]<\/span><\/p>\n

          print<\/span>(<\/span>a *<\/span> 3<\/span>)<\/span> # [1, 2, 1, 2, 1, 2]<\/span><\/p>\n

          print<\/span>(<\/span>2<\/span> in<\/span> a)<\/span> # True<\/span>
          \nprint<\/span>(<\/span>99<\/span> not<\/span> in<\/span> a)<\/span> # True<\/span><\/p>\n

          089 \u5217\u8868\u622a\u53d6\u4e0e\u62fc\u63a5<\/h3>\n

          \u5207\u7247\u8bed\u6cd5 [start:end:step]，\u5de6\u95ed\u53f3\u5f00；+\u7528\u4e8e\u62fc\u63a5\u3002<\/p>\n

          lst =<\/span> [<\/span>"A"<\/span>,<\/span> "B"<\/span>,<\/span> "C"<\/span>,<\/span> "D"<\/span>,<\/span> "E"<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>1<\/span>:<\/span>4<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>:<\/span>3<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>2<\/span>:<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst[<\/span>:<\/span>:<\/span>2<\/span>]<\/span>)<\/span><\/p>\n

          list1 =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>]<\/span>
          \nlist2 =<\/span> [<\/span>3<\/span>,<\/span>4<\/span>]<\/span>
          \nmerge =<\/span> list1 +<\/span> list2
          \nprint<\/span>(<\/span>merge)<\/span><\/p>\n

          090 \u5217\u8868\u5d4c\u5957<\/h3>\n

          \u5217\u8868\u5185\u90e8\u5143\u7d20\u4f9d\u7136\u662f\u5217\u8868，\u7528\u6765\u8868\u8fbe\u4e8c\u7ef4\u7ed3\u6784\u3002<\/p>\n

          matrix =<\/span> [<\/span>[<\/span>1<\/span>,<\/span> 2<\/span>]<\/span>,<\/span> [<\/span>3<\/span>,<\/span> 4<\/span>]<\/span>,<\/span> [<\/span>5<\/span>,<\/span> 6<\/span>]<\/span>]<\/span>
          \nprint<\/span>(<\/span>matrix[<\/span>0<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>matrix[<\/span>0<\/span>]<\/span>[<\/span>1<\/span>]<\/span>)<\/span><\/p>\n

          # \u5faa\u73af\u904d\u5386\u5d4c\u5957\u5217\u8868<\/span>
          \nfor<\/span> row in<\/span> matrix:<\/span>
          \n for<\/span> item in<\/span> row:<\/span>
          \n print<\/span>(<\/span>item,<\/span> end=<\/span>" "<\/span>)<\/span><\/p>\n

          091 \u83b7\u53d6\u5217\u8868\u5143\u7d20\u4e2d\u7684\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c<\/h3>\n

          \u5185\u7f6e\u51fd\u6570 max()\u3001min()\u3002<\/p>\n

          scores =<\/span> [<\/span>78<\/span>,<\/span> 92<\/span>,<\/span> 56<\/span>,<\/span> 85<\/span>]<\/span>
          \nprint<\/span>(<\/span>max<\/span>(<\/span>scores)<\/span>)<\/span>
          \nprint<\/span>(<\/span>min<\/span>(<\/span>scores)<\/span>)<\/span><\/p>\n

          092 \u8ffd\u52a0\u5176\u4ed6\u5217\u8868\u4e2d\u7684\u503c<\/h3>\n

          extend()\u628a\u53e6\u4e00\u4e2a\u5e8f\u5217\u6240\u6709\u5143\u7d20\u8ffd\u52a0\u5230\u5f53\u524d\u5217\u8868，\u533a\u522b\u4e8eappend()\u3002<\/p>\n

          a =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>]<\/span>
          \nb =<\/span> [<\/span>3<\/span>,<\/span>4<\/span>]<\/span>
          \na.<\/span>extend(<\/span>b)<\/span>
          \nprint<\/span>(<\/span>a)<\/span> # [1, 2, 3, 4]<\/span><\/p>\n

          # \u5bf9\u6bd4append<\/span>
          \nc =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>]<\/span>
          \nc.<\/span>append(<\/span>b)<\/span>
          \nprint<\/span>(<\/span>c)<\/span> # [1, 2, [3, 4]]<\/span><\/p>\n

          093 \u5728\u5217\u8868\u4e2d\u7edf\u8ba1\u67d0\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570<\/h3>\n

          \u4f7f\u7528.count(\u5143\u7d20)\u3002<\/p>\n

          words =<\/span> [<\/span>"hi"<\/span>,<\/span> "python"<\/span>,<\/span> "hi"<\/span>,<\/span> "hi"<\/span>]<\/span>
          \ncnt =<\/span> words.<\/span>count(<\/span>"hi"<\/span>)<\/span>
          \nprint<\/span>(<\/span>cnt)<\/span> # 3<\/span><\/p>\n

          094 \u6e05\u7a7a\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/h3>\n

          \u4e24\u79cd\u5e38\u7528\u65b9\u5f0f：clear()\u3001\u5207\u7247\u8d4b\u503c[:]\u3002<\/p>\n

          lst =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
          \nlst.<\/span>clear(<\/span>)<\/span>
          \nprint<\/span>(<\/span>lst)<\/span><\/p>\n

          lst2 =<\/span> [<\/span>10<\/span>,<\/span>20<\/span>]<\/span>
          \nlst2[<\/span>:<\/span>]<\/span> =<\/span> [<\/span>]<\/span>
          \nprint<\/span>(<\/span>lst2)<\/span><\/p>\n

          095 \u590d\u5236\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/h3>\n

          \u76f4\u63a5\u8d4b\u503c\u53ea\u662f\u5f15\u7528；\u60f3\u8981\u72ec\u7acb\u526f\u672c\u4f7f\u7528\u5207\u7247\u6216\u8005copy()\u3002<\/p>\n

          a =<\/span> [<\/span>1<\/span>,<\/span>2<\/span>,<\/span>3<\/span>]<\/span>
          \nb =<\/span> a # \u540c\u4e00\u4e2a\u5bf9\u8c61<\/span>
          \nc =<\/span> a.<\/span>copy(<\/span>)<\/span> # \u65b0\u5217\u8868<\/span>
          \nd =<\/span> a[<\/span>:<\/span>]<\/span> # \u65b0\u5217\u8868<\/span><\/p>\n

          a[<\/span>0<\/span>]<\/span> =<\/span> 99<\/span>
          \nprint<\/span>(<\/span>"a:"<\/span>,<\/span> a)<\/span>
          \nprint<\/span>(<\/span>"b:"<\/span>,<\/span> b)<\/span>
          \nprint<\/span>(<\/span>"c:"<\/span>,<\/span> c)<\/span><\/p>\n

          096 \u83b7\u53d6\u5217\u8868\u4e2d\u67d0\u4e2a\u5143\u7d20\u7684\u7d22\u5f15<\/h3>\n

          .index(\u5143\u7d20)\u8fd4\u56de\u7b2c\u4e00\u4e2a\u5339\u914d\u5143\u7d20\u4e0b\u6807\u3002<\/p>\n

          lst =<\/span> [<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>,<\/span> 20<\/span>]<\/span>
          \npos =<\/span> lst.<\/span>index(<\/span>20<\/span>)<\/span>
          \nprint<\/span>(<\/span>pos)<\/span> # 1<\/span><\/p>\n

          \u5143\u7d20\u4e0d\u5b58\u5728\u4f1a\u629b\u51faValueError\u3002<\/p>\n

          097 \u6ce8\u610f\u6392\u5217\u987a\u5e8f\u7684\u591a\u6837\u6027<\/h3>\n

          \u6392\u5e8f\u9ed8\u8ba4\u6309\u7167\u81ea\u7136\u5927\u5c0f；\u5b57\u7b26\u4e32\u6309ASCII\u7801\u6bd4\u8f83；\u540c\u65f6\u533a\u5206\u5927\u5c0f\u5199\u3002<\/p>\n

          str_list =<\/span> [<\/span>"Banana"<\/span>,<\/span> "apple"<\/span>,<\/span> "Cat"<\/span>]<\/span>
          \nstr_list.<\/span>sort(<\/span>)<\/span>
          \nprint<\/span>(<\/span>str_list)<\/span><\/p>\n

          # \u5ffd\u7565\u5927\u5c0f\u5199\u6392\u5e8f<\/span>
          \nstr_list.<\/span>sort(<\/span>key=<\/span>str<\/span>.<\/span>lower)<\/span>
          \nprint<\/span>(<\/span>str_list)<\/span><\/p>\n

          098 \u5c1d\u8bd5\u6709\u610f\u5f15\u53d1\u9519\u8bef<\/h3>\n

          \u4e3b\u52a8\u89c2\u5bdf\u5f02\u5e38，\u65b9\u4fbf\u4ee5\u540e\u6392\u9519\u3002<\/p>\n

          lst =<\/span> [<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]<\/span>
          \n# print(lst[10]) # IndexError<\/span><\/p>\n

          # lst.remove(99) # ValueError<\/span><\/p>\n

          \u5b66\u4e60\u76ee\u6807：\u770b\u61c2\u62a5\u9519\u4fe1\u606f，\u5b9a\u4f4d\u95ee\u9898\u4ee3\u7801\u3002<\/p>\n

          099 \u521b\u5efa\u5e76\u8bbf\u95ee\u5143\u7ec4<\/h3>\n

          \u5143\u7ec4tuple\u4f7f\u7528()\u5b9a\u4e49，\u4e0d\u53ef\u53d8\u5e8f\u5217，\u7d22\u5f15\u3001\u5207\u7247\u7528\u6cd5\u548c\u5217\u8868\u4e00\u81f4\u3002<\/p>\n

          t =<\/span> (<\/span>10<\/span>,<\/span> 20<\/span>,<\/span> 30<\/span>)<\/span>
          \nprint<\/span>(<\/span>t[<\/span>0<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>t[<\/span>–<\/span>1<\/span>]<\/span>)<\/span>
          \nprint<\/span>(<\/span>t[<\/span>1<\/span>:<\/span>]<\/span>)<\/span><\/p>\n

          # \u5355\u5143\u7d20\u5143\u7ec4\u5fc5\u987b\u52a0\u9017\u53f7<\/span>
          \nt_single =<\/span> (<\/span>666<\/span>,<\/span>)<\/span>
          \nprint<\/span>(<\/span>type<\/span>(<\/span>t_single)<\/span>)<\/span><\/p>\n

          100 \u4fee\u6539\u5143\u7ec4<\/h3>\n

          \u5143\u7ec4\u672c\u8eab\u6574\u4f53\u4e0d\u53ef\u4fee\u6539，\u4e0d\u80fd\u589e\u5220\u3001\u66ff\u6362\u5143\u7d20\u3002<\/p>\n

          t =<\/span> (<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>)<\/span>
          \n# t[0] = 99 # TypeError<\/span><\/p>\n

          # \u53d8\u901a\u65b9\u6848：\u8f6c\u5217\u8868\u4fee\u6539\u540e\u518d\u8f6c\u56de\u5143\u7ec4<\/span>
          \nlst =<\/span> list<\/span>(<\/span>t)<\/span>
          \nlst[<\/span>0<\/span>]<\/span> =<\/span> 99<\/span>
          \nt_new =<\/span> tuple<\/span>(<\/span>lst)<\/span>
          \nprint<\/span>(<\/span>t_new)<\/span><\/p>\n

          # \u7279\u6b8a\u60c5\u51b5：\u5143\u7ec4\u5185\u5d4c\u5957\u53ef\u53d8\u5bf9\u8c61，\u53ef\u53d8\u5bf9\u8c61\u5185\u5bb9\u5141\u8bb8\u4fee\u6539<\/span>
          \nt2 =<\/span> (<\/span>[<\/span>1<\/span>,<\/span>2<\/span>]<\/span>,<\/span> 5<\/span>)<\/span>
          \nt2[<\/span>0<\/span>]<\/span>.<\/span>append(<\/span>3<\/span>)<\/span>
          \nprint<\/span>(<\/span>t2)<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

          \u8d70\u8fdbPython\u7f16\u7a0b\u4e16\u754c：\u5f00\u542f\u4f60\u7684\u4ee3\u7801\u5f81\u9014
          \n001 Python\u7f16\u7a0b\u4e16\u754c\u7684\u7405\u740a\u699c
          \n\u5728\u767e\u82b1\u9f50\u653e\u7684\u7f16\u7a0b\u8bed\u8a00\u7248\u56fe\u91cc，Python\u7a33\u7a33\u5360\u636e\u4e00\u5e2d\u9ad8\u5730，\u79f0\u5f97\u4e0a\u7f16\u7a0b\u754c\u5bb6\u55bb\u6237\u6653\u7684\u201c\u7405\u740a\u699c\u540d\u58eb\u201d\u3002C\/C\u6df1\u8015\u5e95\u5c42\u6027\u80fd\u3001Java\u7a33\u56fa\u4f01\u4e1a\u5f00\u53d1\u3001Go\u8bed\u8a00\u64c5\u957f\u9ad8\u5e76\u53d1，\u800cPython\u51ed\u501f\u72ec\u6709\u7684\u6c14\u8d28，\u4fd8\u83b7\u4e86\u5b66\u751f\u3001\u5de5\u7a0b\u5e08\u3001\u6570\u636e\u5206\u6790\u5e08\u3001\u81ea\u52a8\u5316\u5f00\u53d1\u8005\u65e0\u6570\u7231\u597d\u8005\u3002\u5b83\u4e0d\u8ffd\u6c42\u6666\u6da9\u96be\u61c2\u7684\u8bed\u6cd5\u70ab\u6280，\u4e3b\u6253\u7b80\u6d01\u901a\u900f\u3001\u4e0a\u624b\u53cb\u597d，\u6a2a\u8de8<\/p>\n","protected":false},"author":2,"featured_media":92567,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10587,6394,6499,10336,81,190],"topic":[],"class_list":["post-92568","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-ansa","tag-cae","tag-6499","tag-10336","tag-python","tag-190"],"yoast_head":"\n\u3010Python\u5165\u95e8\u5230\u7cbe\u901a\u3011\u57fa\u7840\u7bc7 - 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