{"id":62063,"date":"2026-01-19T08:41:53","date_gmt":"2026-01-19T00:41:53","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62063.html"},"modified":"2026-01-19T08:41:53","modified_gmt":"2026-01-19T00:41:53","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3go%e8%af%ad%e8%a8%80for%e5%be%aa%e7%8e%af%ef%bc%9a%e5%85%a8%e5%9c%ba%e6%99%af%e7%94%a8%e6%b3%95%e3%80%81%e9%ab%98%e9%a2%91%e5%9d%91%e7%82%b9%e5%8f%8a%e7%bc%96","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62063.html","title":{"rendered":"\u6df1\u5165\u7406\u89e3Go\u8bed\u8a00for\u5faa\u73af\uff1a\u5168\u573a\u666f\u7528\u6cd5\u3001\u9ad8\u9891\u5751\u70b9\u53ca\u7f16\u8bd1\u5668\u8bed\u6cd5\u7cd6\u89e3\u6790"},"content":{"rendered":"<h3>\u4e00\u3001for\u5faa\u73af&#xff1a;Go\u8bed\u8a00\u552f\u4e00\u7684\u5faa\u73af\u8bed\u53e5&#xff0c;\u6781\u7b80\u800c\u5168\u80fd<\/h3>\n<p>\u5728Go\u8bed\u8a00\u7684\u8bed\u6cd5\u4f53\u7cfb\u4e2d&#xff0c;for\u662f\u552f\u4e00\u7684\u5faa\u73af\u8bed\u53e5\u2014\u2014\u6ca1\u6709\u5176\u4ed6\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684while\u3001do-while\u5faa\u73af&#xff0c;\u6240\u6709\u5faa\u73af\u903b\u8f91\u90fd\u57fa\u4e8efor\u5b9e\u73b0\u3002\u8fd9\u79cd\u8bbe\u8ba1\u4f53\u73b0\u4e86Go\u7684\u6781\u7b80\u4e3b\u4e49\u54f2\u5b66&#xff1a;\u7528\u5355\u4e00\u7ed3\u6784\u8986\u76d6\u6240\u6709\u573a\u666f&#xff0c;\u964d\u4f4e\u8bed\u6cd5\u590d\u6742\u5ea6&#xff0c;\u63d0\u5347\u4ee3\u7801\u53ef\u8bfb\u6027\u3002<\/p>\n<p>Go\u7684for\u5faa\u73af\u6709\u4e09\u5927\u6838\u5fc3\u7279\u6027&#xff1a;\u4e00\u662f\u8bed\u6cd5\u7075\u6d3b&#xff0c;\u652f\u6301\u8ba1\u6570\u5faa\u73af\u3001\u6761\u4ef6\u5faa\u73af\u3001\u65e0\u9650\u5faa\u73af\u4e09\u79cd\u57fa\u7840\u683c\u5f0f&#xff1b;\u4e8c\u662f\u529f\u80fd\u5f3a\u5927&#xff0c;\u901a\u8fc7for-range\u8bed\u6cd5\u7cd6\u652f\u6301\u6570\u7ec4\u3001\u5207\u7247\u3001\u5b57\u7b26\u4e32\u3001map\u3001channel\u7684\u9ad8\u6548\u904d\u5386&#xff1b;\u4e09\u662f\u7f16\u8bd1\u5668\u4f18\u5316&#xff0c;\u5bf9\u8bed\u6cd5\u7cd6\u505a\u4e86\u7279\u6b8a\u5904\u7406&#xff0c;\u4f46\u4e5f\u56e0\u6b64\u5e26\u6765\u4e86\u5bb9\u6613\u8e29\u5751\u7684\u7ec6\u8282\u3002<\/p>\n<p>\u672c\u6587\u5c06\u4ecefor\u5faa\u73af\u7684\u5168\u573a\u666f\u7528\u6cd5\u5165\u624b&#xff0c;\u6df1\u5165\u5206\u6790\u9ad8\u9891\u5751\u70b9\u7684\u5e95\u5c42\u539f\u56e0&#xff0c;\u5e76\u7ed3\u5408\u7f16\u8bd1\u5668\u5bf9\u8bed\u6cd5\u7cd6\u7684\u89e3\u91ca&#xff0c;\u7ed9\u51fa\u6807\u51c6\u89e3\u51b3\u65b9\u6848&#xff0c;\u5e2e\u52a9\u5f00\u53d1\u8005\u5199\u51fa\u9ad8\u6548\u3001\u65e0Bug\u7684\u5faa\u73af\u4ee3\u7801\u3002<\/p>\n<h3>\u4e8c\u3001for\u5faa\u73af\u7684\u4e09\u79cd\u57fa\u7840\u683c\u5f0f\u4e0e\u5178\u578b\u5e94\u7528\u573a\u666f<\/h3>\n<p>Go\u7684for\u5faa\u73af\u4ec5\u6709\u4e09\u79cd\u57fa\u7840\u8bed\u6cd5\u683c\u5f0f&#xff0c;\u884d\u751f\u51fa\u6240\u6709\u5faa\u73af\u7528\u6cd5\u3002\u4e0e\u5176\u4ed6\u8bed\u8a00\u4e0d\u540c&#xff0c;Go\u7701\u7565\u4e86\u5faa\u73af\u6761\u4ef6\u5916\u7684\u5197\u4f59\u62ec\u53f7&#xff0c;\u8bed\u6cd5\u66f4\u7b80\u6d01&#xff0c;\u89c4\u5219\u66f4\u7edf\u4e00\u3002<\/p>\n<h4>2.1 \u683c\u5f0f1&#xff1a;\u6807\u51c6\u8ba1\u6570\u5faa\u73af&#xff08;\u5df2\u77e5\u5faa\u73af\u6b21\u6570&#xff09;<\/h4>\n<p>\u8fd9\u662f\u6700\u7ecf\u5178\u7684\u5faa\u73af\u683c\u5f0f&#xff0c;\u9002\u7528\u4e8e\u5df2\u77e5\u5faa\u73af\u6b21\u6570\u3001\u6309\u7d22\u5f15\u64cd\u4f5c\u6570\u636e\u7684\u573a\u666f&#xff0c;\u5982\u6570\u7ec4\/\u5207\u7247\u7684\u7d22\u5f15\u904d\u5386\u3001\u6307\u5b9a\u6b65\u957f\u7684\u5faa\u73af\u7b49\u3002<\/p>\n<p>\u8bed\u6cd5\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token keyword\">for<\/span> \u521d\u59cb\u5316\u8868\u8fbe\u5f0f<span class=\"token punctuation\">;<\/span> \u6761\u4ef6\u5224\u65ad\u8868\u8fbe\u5f0f<span class=\"token punctuation\">;<\/span> \u81ea\u589e<span class=\"token operator\">\/<\/span>\u81ea\u51cf\u8868\u8fbe\u5f0f <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6838\u5fc3\u89c4\u5219&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u521d\u59cb\u5316\u8868\u8fbe\u5f0f&#xff1a;\u4ec5\u5728\u5faa\u73af\u7b2c\u4e00\u6b21\u6267\u884c\u524d\u8fd0\u884c1\u6b21&#xff0c;\u901a\u5e38\u7528\u4e8e\u58f0\u660e\u5faa\u73af\u53d8\u91cf&#xff08;\u5982i :&#061; 0&#xff09;&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6761\u4ef6\u5224\u65ad\u8868\u8fbe\u5f0f&#xff1a;\u6bcf\u6b21\u5faa\u73af\u5f00\u59cb\u524d\u6267\u884c&#xff0c;\u7ed3\u679c\u4e3atrue\u65f6\u6267\u884c\u5faa\u73af\u4f53&#xff0c;\u4e3afalse\u65f6\u7ec8\u6b62\u5faa\u73af&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u81ea\u589e\/\u81ea\u51cf\u8868\u8fbe\u5f0f&#xff1a;\u6bcf\u6b21\u5faa\u73af\u4f53\u6267\u884c\u5b8c\u6bd5\u540e\u8fd0\u884c&#xff0c;\u7528\u4e8e\u66f4\u65b0\u5faa\u73af\u53d8\u91cf&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5faa\u73af\u53d8\u91cf\u4f5c\u7528\u57df&#xff1a;\u521d\u59cb\u5316\u8868\u8fbe\u5f0f\u4e2d\u58f0\u660e\u7684\u53d8\u91cf&#xff08;\u5982i&#xff09;&#xff0c;\u4f5c\u7528\u57df\u4ec5\u9650\u5faa\u73af\u5185\u90e8&#xff0c;\u5916\u90e8\u65e0\u6cd5\u8bbf\u95ee\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u573a\u666f1&#xff1a;\u57fa\u7840\u8ba1\u6570&#xff08;0\u52309&#xff0c;\u6b65\u957f1&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> i <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;i &#061; %d &#034;<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u573a\u666f2&#xff1a;\u81ea\u5b9a\u4e49\u6b65\u957f&#xff08;10\u52300&#xff0c;\u6b65\u957f-2&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> i <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">-&#061;<\/span> <span class=\"token number\">2<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;i &#061; %d &#034;<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u573a\u666f3&#xff1a;\u591a\u53d8\u91cf\u521d\u59cb\u5316&#xff08;\u540c\u65f6\u63a7\u5236\u7d22\u5f15\u548c\u6b65\u957f&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> i<span class=\"token punctuation\">,<\/span> j <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">5<\/span> <span class=\"token operator\">&amp;&amp;<\/span> j <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">5<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token punctuation\">,<\/span> j <span class=\"token operator\">&#061;<\/span> i<span class=\"token operator\">&#043;<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> j<span class=\"token operator\">&#8211;<\/span><span class=\"token number\">1<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;i &#061; %d, j &#061; %d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> j<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8f93\u51fa\u7ed3\u679c&#xff1a;<\/p>\n<p>i &#061; 0 i &#061; 1 i &#061; 2 i &#061; 3 i &#061; 4 i &#061; 5 i &#061; 6 i &#061; 7 i &#061; 8 i &#061; 9<br \/>\ni &#061; 10 i &#061; 8 i &#061; 6 i &#061; 4 i &#061; 2 i &#061; 0<br \/>\ni &#061; 0, j &#061; 10<br \/>\ni &#061; 1, j &#061; 9<br \/>\ni &#061; 2, j &#061; 8<br \/>\ni &#061; 3, j &#061; 7<br \/>\ni &#061; 4, j &#061; 6<\/p>\n<h4>2.2 \u683c\u5f0f2&#xff1a;\u6761\u4ef6\u5faa\u73af&#xff08;\u7b49\u4ef7\u4e8ewhile\u5faa\u73af&#xff09;<\/h4>\n<p>\u7701\u7565\u521d\u59cb\u5316\u548c\u81ea\u589e\u8868\u8fbe\u5f0f&#xff0c;\u4ec5\u4fdd\u7559\u6761\u4ef6\u5224\u65ad&#xff0c;\u9002\u7528\u4e8e\u5faa\u73af\u6b21\u6570\u672a\u77e5\u3001\u4ec5\u77e5\u9053\u7ec8\u6b62\u6761\u4ef6\u7684\u573a\u666f&#xff0c;\u5982\u201c\u8bfb\u53d6\u6570\u636e\u76f4\u5230EOF\u201d\u201c\u7b49\u5f85\u72b6\u6001\u53d8\u66f4\u201d\u7b49\u3002<\/p>\n<p>\u8bed\u6cd5\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token keyword\">for<\/span> \u6761\u4ef6\u5224\u65ad\u8868\u8fbe\u5f0f <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6838\u5fc3\u89c4\u5219&#xff1a;\u6761\u4ef6\u8868\u8fbe\u5f0f\u5728\u6bcf\u6b21\u5faa\u73af\u5f00\u59cb\u524d\u6267\u884c&#xff0c;\u4e0d\u6ee1\u8db3\u6761\u4ef6\u65f6\u7acb\u5373\u9000\u51fa\u5faa\u73af&#xff0c;\u65e0\u9700\u624b\u52a8\u63a7\u5236\u7d22\u5f15\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u573a\u666f&#xff1a;\u8ba1\u7b971\u5230100\u7684\u7d2f\u52a0\u548c&#xff08;\u672a\u77e5\u5faa\u73af\u6b21\u6570&#xff0c;\u76f4\u5230num&gt;100&#xff09;<\/span><br \/>\n    sum <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><br \/>\n    num <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">1<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> num <span class=\"token operator\">&lt;&#061;<\/span> <span class=\"token number\">100<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        sum <span class=\"token operator\">&#043;&#061;<\/span> num<br \/>\n        num<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;1\u5230100\u7684\u7d2f\u52a0\u548c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> sum<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8f93\u51fa\u7ed3\u679c&#xff1a;<\/p>\n<p>1\u5230100\u7684\u7d2f\u52a0\u548c&#xff1a;5050<\/p>\n<h4>2.3 \u683c\u5f0f3&#xff1a;\u65e0\u9650\u5faa\u73af&#xff08;\u7b49\u4ef7\u4e8ewhile(true)&#xff09;<\/h4>\n<p>\u7701\u7565\u6240\u6709\u8868\u8fbe\u5f0f&#xff0c;\u76f4\u63a5\u5199for {}&#xff0c;\u9002\u7528\u4e8e\u9700\u8981\u6c38\u4e45\u5faa\u73af\u7684\u573a\u666f&#xff0c;\u5982\u670d\u52a1\u7aef\u7684\u4e8b\u4ef6\u76d1\u542c\u3001\u6d88\u606f\u961f\u5217\u6d88\u8d39\u3001\u5b9a\u65f6\u4efb\u52a1\u7b49\u3002<\/p>\n<p>\u8bed\u6cd5\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6838\u5fc3\u89c4\u5219&#xff1a;\u5faa\u73af\u4f1a\u6c38\u4e45\u6267\u884c&#xff0c;\u5fc5\u987b\u901a\u8fc7break\/return\/panic\u7b49\u8bed\u53e5\u624b\u52a8\u7ec8\u6b62&#xff0c;\u5426\u5219\u4f1a\u5bfc\u81f4\u7a0b\u5e8f\u5361\u6b7b&#xff1b;continue\u53ef\u8df3\u8fc7\u5f53\u524d\u5faa\u73af\u7684\u5269\u4f59\u903b\u8f91&#xff0c;\u76f4\u63a5\u8fdb\u5165\u4e0b\u4e00\u6b21\u5faa\u73af\u3002<\/p>\n<p>\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;time&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u573a\u666f&#xff1a;\u5b9a\u65f6\u6253\u5370\u65e5\u5fd7&#xff0c;5\u79d2\u540e\u9000\u51fa<\/span><br \/>\n    count <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        count<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7b2c%d\u6b21\u6253\u5370\u65e5\u5fd7\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> count<span class=\"token punctuation\">)<\/span><br \/>\n        time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u4f11\u77201\u79d2<\/span><\/p>\n<p>        <span class=\"token keyword\">if<\/span> count <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">5<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u8fbe\u5230\u6700\u5927\u6b21\u6570&#xff0c;\u9000\u51fa\u5faa\u73af&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token keyword\">break<\/span> <span class=\"token comment\">\/\/ \u624b\u52a8\u7ec8\u6b62\u5faa\u73af<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2.4 \u8bed\u6cd5\u7cd6&#xff1a;for-range \u904d\u5386\u5faa\u73af&#xff08;Go\u8bed\u8a00\u7279\u8272&#xff09;<\/h4>\n<p>for-range\u662fGo\u8bed\u8a00\u4e3a\u53ef\u8fed\u4ee3\u7c7b\u578b\u8bbe\u8ba1\u7684\u4e13\u7528\u904d\u5386\u8bed\u6cd5\u7cd6&#xff0c;\u652f\u6301\u6570\u7ec4\u3001\u5207\u7247\u3001\u5b57\u7b26\u4e32\u3001map\u3001channel\u4e94\u79cd\u7c7b\u578b&#xff0c;\u65e0\u9700\u624b\u52a8\u5904\u7406\u7d22\u5f15\/\u957f\u5ea6&#xff0c;\u662f\u65e5\u5e38\u5f00\u53d1\u4e2d\u904d\u5386\u6570\u636e\u7684\u9996\u9009\u65b9\u5f0f\u3002<\/p>\n<p>\u8bed\u6cd5\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u904d\u5386\u6570\u7ec4\/\u5207\u7247\/\u5b57\u7b26\u4e32&#xff1a;\u8fd4\u56de\u7d22\u5f15\u548c\u5143\u7d20<\/span><br \/>\n<span class=\"token keyword\">for<\/span> index<span class=\"token punctuation\">,<\/span> value <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> \u53ef\u8fed\u4ee3\u5bf9\u8c61 <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u904d\u5386map&#xff1a;\u8fd4\u56de\u952e\u548c\u503c<\/span><br \/>\n<span class=\"token keyword\">for<\/span> key<span class=\"token punctuation\">,<\/span> value <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> <span class=\"token keyword\">map<\/span>\u5bf9\u8c61 <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u904d\u5386channel&#xff1a;\u4ec5\u8fd4\u56de\u503c&#xff08;\u65e0\u7d22\u5f15\/\u952e&#xff09;<\/span><br \/>\n<span class=\"token keyword\">for<\/span> value <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> channel\u5bf9\u8c61 <span class=\"token punctuation\">{<\/span><br \/>\n    \u5faa\u73af\u4f53\u903b\u8f91<br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5ffd\u7565\u7d22\u5f15\/\u952e\/\u503c&#xff1a;\u4f7f\u7528\u4e0b\u5212\u7ebf _&#xff08;\u7a7a\u6807\u8bc6\u7b26&#xff09;\u5360\u4f4d<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> v <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/\/ \u53ea\u53d6\u5143\u7d20&#xff0c;\u5ffd\u7565\u7d22\u5f15<\/span><br \/>\n<span class=\"token keyword\">for<\/span> k<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">_<\/span> <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> m <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span>     <span class=\"token comment\">\/\/ \u53ea\u53d6\u952e&#xff0c;\u5ffd\u7565\u503c<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span>         <span class=\"token comment\">\/\/ \u53ea\u904d\u5386&#xff0c;\u5ffd\u7565\u7d22\u5f15\u548c\u5143\u7d20<\/span><\/p>\n<p>\u5206\u7c7b\u578b\u793a\u4f8b\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 1. \u904d\u5386\u5207\u7247<\/span><br \/>\n    slice <span class=\"token operator\">:&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">string<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;Go&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Java&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;Python&#034;<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5207\u7247\u7d22\u5f15&#xff1a;%d&#xff0c;\u503c&#xff1a;%s\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> idx<span class=\"token punctuation\">,<\/span> val<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 2. \u904d\u5386map<\/span><br \/>\n    m <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">map<\/span><span class=\"token punctuation\">[<\/span><span class=\"token builtin\">string<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;a&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;b&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;c&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> k<span class=\"token punctuation\">,<\/span> v <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> m <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;map\u952e&#xff1a;%s&#xff0c;\u503c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">,<\/span> v<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 3. \u904d\u5386\u5b57\u7b26\u4e32&#xff08;\u81ea\u52a8\u89e3\u7801UTF-8&#xff0c;\u652f\u6301\u4e2d\u6587\/\u8868\u60c5&#xff09;<\/span><br \/>\n    str <span class=\"token operator\">:&#061;<\/span> <span class=\"token string\">&#034;Go\u8bed\u8a00&#x1f680;&#034;<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> ch <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> str <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5b57\u7b26\u4e32\u5b57\u8282\u7d22\u5f15&#xff1a;%d&#xff0c;\u5b57\u7b26&#xff1a;%c&#xff08;Unicode\u7801\u503c&#xff1a;%d&#xff09;\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> idx<span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ 4. \u904d\u5386channel&#xff08;\u963b\u585e\u7b49\u5f85\u6570\u636e&#xff0c;\u76f4\u5230channel\u5173\u95ed&#xff09;<\/span><br \/>\n    ch <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">chan<\/span> <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    ch <span class=\"token operator\">&lt;-<\/span> <span class=\"token number\">10<\/span><br \/>\n    ch <span class=\"token operator\">&lt;-<\/span> <span class=\"token number\">20<\/span><br \/>\n    <span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span>ch<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> ch <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;channel\u503c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> val<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6838\u5fc3\u7279\u6027&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u904d\u5386\u5b57\u7b26\u4e32&#xff1a;for-range\u4f1a\u81ea\u52a8\u89e3\u7801UTF-8\u5b57\u7b26&#xff0c;\u8fd4\u56de\u300c\u5b57\u8282\u7d22\u5f15\u300d\u548c\u300cUnicode\u7801\u503c\u300d&#xff0c;\u5b8c\u7f8e\u652f\u6301\u4e2d\u6587\u3001\u8868\u60c5\u7b49\u975eASCII\u5b57\u7b26&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u904d\u5386map&#xff1a;\u904d\u5386\u987a\u5e8f\u662f\u968f\u673a\u7684&#xff08;Go\u7f16\u8bd1\u5668\u6545\u610f\u6253\u4e71&#xff0c;\u9632\u6b62\u5f00\u53d1\u8005\u4f9d\u8d56\u987a\u5e8f&#xff09;&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u904d\u5386channel&#xff1a;\u4f1a\u963b\u585e\u7b49\u5f85\u6570\u636e&#xff0c;channel\u5173\u95ed\u540e\u81ea\u52a8\u9000\u51fa\u5faa\u73af&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u6027\u80fd\u4f18\u52bf&#xff1a;for-range\u7684\u5e95\u5c42\u7531\u7f16\u8bd1\u5668\u4f18\u5316&#xff0c;\u904d\u5386\u6570\u7ec4\/\u5207\u7247\u7684\u6548\u7387\u4e0e\u624b\u52a8\u7d22\u5f15\u904d\u5386\u76f8\u5f53\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u4e09\u3001for\u5faa\u73af\u7684\u9ad8\u9891\u5751\u70b9&#xff08;\u5e95\u5c42\u539f\u56e0&#043;\u6807\u51c6\u89e3\u51b3\u65b9\u6848&#xff09;<\/h3>\n<p>for\u5faa\u73af\u768490%\u5751\u70b9\u96c6\u4e2d\u5728for-range\u8bed\u6cd5\u7cd6&#xff0c;\u5269\u4f5910%\u6765\u81ea\u57fa\u7840\u5faa\u73af\u7684\u53d8\u91cf\u4f5c\u7528\u57df\u3002\u8fd9\u4e9b\u5751\u70b9\u7684\u672c\u8d28\u662f\u5f00\u53d1\u8005\u5bf9\u7f16\u8bd1\u5668\u7684\u8bed\u6cd5\u7cd6\u5b9e\u73b0\u903b\u8f91\u4e0d\u4e86\u89e3&#xff0c;\u800c\u975e\u8bed\u6cd5\u672c\u8eab\u7684\u95ee\u9898\u3002\u4e0b\u9762\u9010\u4e00\u5206\u6790\u9ad8\u9891\u5751\u70b9\u3002<\/p>\n<h4>3.1 \u5751\u70b91&#xff1a;for-range \u5faa\u73af\u53d8\u91cf\u590d\u7528\u95ee\u9898&#xff08;\u9876\u7ea7\u9ad8\u9891\u5751&#xff09;<\/h4>\n<p>\u8fd9\u662fGo\u5f00\u53d1\u8005\u6700\u5bb9\u6613\u8e29\u7684\u5751&#xff0c;\u8868\u73b0\u4e3a&#xff1a;\u5728for-range\u4e2d\u542f\u52a8Goroutine\u6216\u8d4b\u503c\u6307\u9488\u65f6&#xff0c;\u6240\u6709\u534f\u7a0b\/\u6307\u9488\u6700\u7ec8\u6307\u5411\u540c\u4e00\u4e2a\u503c&#xff08;\u5faa\u73af\u6700\u540e\u4e00\u6b21\u7684\u5143\u7d20&#xff09;\u3002<\/p>\n<p>\u95ee\u9898\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token string\">&#034;fmt&#034;<\/span><br \/>\n    <span class=\"token string\">&#034;time&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    slice <span class=\"token operator\">:&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">{<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u904d\u5386\u5207\u7247&#xff0c;\u542f\u52a8\u534f\u7a0b\u6253\u5370\u5143\u7d20<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">go<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7d22\u5f15&#xff1a;%d&#xff0c;\u503c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> idx<span class=\"token punctuation\">,<\/span> val<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span><span class=\"token function\">Sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span> <span class=\"token operator\">*<\/span> time<span class=\"token punctuation\">.<\/span>Second<span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u7b49\u5f85\u534f\u7a0b\u6267\u884c<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9519\u8bef\u8f93\u51fa&#xff08;\u5927\u6982\u7387&#xff09;&#xff1a;<\/p>\n<p>\u7d22\u5f15&#xff1a;2&#xff0c;\u503c&#xff1a;3<br \/>\n\u7d22\u5f15&#xff1a;2&#xff0c;\u503c&#xff1a;3<br \/>\n\u7d22\u5f15&#xff1a;2&#xff0c;\u503c&#xff1a;3<\/p>\n<p>\u5e95\u5c42\u539f\u56e0&#xff08;\u7f16\u8bd1\u5668\u8bed\u6cd5\u7cd6\u89e3\u6790&#xff09;&#xff1a;<\/p>\n<p>for-range\u7684\u5faa\u73af\u53d8\u91cf&#xff08;idx\u3001val&#xff09;\u662f\u5168\u5c40\u590d\u7528\u7684\u2014\u2014\u7f16\u8bd1\u5668\u5728\u5904\u7406for-range\u65f6&#xff0c;\u53ea\u4f1a\u521b\u5efa\u4e00\u7ec4idx\u548cval\u53d8\u91cf&#xff0c;\u5faa\u73af\u7684\u6bcf\u4e00\u8f6e\u8fed\u4ee3&#xff0c;\u90fd\u4f1a\u5c06\u5f53\u524d\u5143\u7d20\u7684\u503c\u62f7\u8d1d\u8986\u76d6\u5230\u8fd9\u4e24\u4e2a\u53d8\u91cf\u4e2d&#xff0c;\u800c\u4e0d\u662f\u521b\u5efa\u65b0\u7684\u53d8\u91cf\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u5728\u5faa\u73af\u4e2d\u542f\u52a8Goroutine\u65f6&#xff0c;\u534f\u7a0b\u4e2d\u5f15\u7528\u7684\u662fidx\u548cval\u7684\u5185\u5b58\u5730\u5740&#xff0c;\u800c\u975e\u5f53\u524d\u503c\u3002\u7531\u4e8eGoroutine\u7684\u542f\u52a8\u548c\u6267\u884c\u901f\u5ea6\u8fdc\u6162\u4e8e\u5faa\u73af\u901f\u5ea6&#xff0c;\u5f53\u534f\u7a0b\u771f\u6b63\u6267\u884c\u65f6&#xff0c;\u5faa\u73af\u5df2\u7ecf\u7ed3\u675f&#xff0c;idx\u548cval\u5df2\u7ecf\u88ab\u8d4b\u503c\u4e3a\u6700\u540e\u4e00\u8f6e\u7684\u5185\u5bb9&#xff0c;\u56e0\u6b64\u6240\u6709\u534f\u7a0b\u6253\u5370\u76f8\u540c\u7684\u503c\u3002<\/p>\n<p>\u6807\u51c6\u89e3\u51b3\u65b9\u6848&#xff08;\u4e24\u79cd\u65b9\u6848&#xff0c;\u5747\u63a8\u8350&#xff09;&#xff1a;<\/p>\n<p>\u65b9\u68481&#xff1a;\u5faa\u73af\u5185\u521b\u5efa\u4e34\u65f6\u53d8\u91cf&#xff0c;\u62f7\u8d1d\u5f53\u524d\u503c<\/p>\n<p><span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6838\u5fc3&#xff1a;\u521b\u5efa\u4e34\u65f6\u53d8\u91cf&#xff0c;\u62f7\u8d1d\u5f53\u524d\u5faa\u73af\u53d8\u91cf\u7684\u503c<\/span><br \/>\n    tempIdx<span class=\"token punctuation\">,<\/span> tempVal <span class=\"token operator\">:&#061;<\/span> idx<span class=\"token punctuation\">,<\/span> val<br \/>\n    <span class=\"token keyword\">go<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7d22\u5f15&#xff1a;%d&#xff0c;\u503c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> tempIdx<span class=\"token punctuation\">,<\/span> tempVal<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u65b9\u68482&#xff1a;\u901a\u8fc7\u533f\u540d\u51fd\u6570\u53c2\u6570\u4f20\u503c&#xff08;\u5229\u7528\u503c\u62f7\u8d1d\u7279\u6027&#xff09;<\/p>\n<p><span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6838\u5fc3&#xff1a;\u5c06\u5faa\u73af\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u51fd\u6570&#xff0c;\u53c2\u6570\u662f\u503c\u62f7\u8d1d<\/span><br \/>\n    <span class=\"token keyword\">go<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">,<\/span> v <span class=\"token builtin\">int<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u7d22\u5f15&#xff1a;%d&#xff0c;\u503c&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> i<span class=\"token punctuation\">,<\/span> v<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">(<\/span>idx<span class=\"token punctuation\">,<\/span> val<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u6b63\u786e\u8f93\u51fa&#xff08;\u987a\u5e8f\u53ef\u80fd\u4e0d\u540c&#xff0c;\u4f46\u503c\u6b63\u786e&#xff09;&#xff1a;<\/p>\n<p>\u7d22\u5f15&#xff1a;0&#xff0c;\u503c&#xff1a;1<br \/>\n\u7d22\u5f15&#xff1a;1&#xff0c;\u503c&#xff1a;2<br \/>\n\u7d22\u5f15&#xff1a;2&#xff0c;\u503c&#xff1a;3<\/p>\n<h4>3.2 \u5751\u70b92&#xff1a;\u904d\u5386\u5b57\u7b26\u4e32\u65f6\u7684\u201c\u5b57\u8282\u7d22\u5f15\u201d\u9677\u9631<\/h4>\n<p>\u904d\u5386\u5b57\u7b26\u4e32\u65f6&#xff0c;for-range\u8fd4\u56de\u7684\u7d22\u5f15\u662f\u5b57\u8282\u7d22\u5f15&#xff0c;\u800c\u975e\u5b57\u7b26\u7d22\u5f15\u3002\u7531\u4e8eUTF-8\u7f16\u7801\u7684\u4e2d\u6587\/\u8868\u60c5\u5360\u591a\u4e2a\u5b57\u8282&#xff0c;\u4f1a\u51fa\u73b0\u300c\u7d22\u5f15\u4e0d\u8fde\u7eed\u300d\u7684\u73b0\u8c61&#xff0c;\u8fd9\u662f\u6b63\u5e38\u7684&#xff0c;\u5e76\u975ebug\u3002<\/p>\n<p>\u95ee\u9898\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    str <span class=\"token operator\">:&#061;<\/span> <span class=\"token string\">&#034;Go\u8bed\u8a00&#034;<\/span> <span class=\"token comment\">\/\/ \u957f\u5ea6\u8ba1\u7b97&#xff1a;Go(2\u5b57\u8282) &#043; \u8bed\u8a00(6\u5b57\u8282)  &#061; 8\u5b57\u8282<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5b57\u7b26\u4e32\u5b57\u8282\u957f\u5ea6&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ for-range\u904d\u5386&#xff1a;\u8fd4\u56de\u5b57\u8282\u7d22\u5f15\u548cUnicode\u5b57\u7b26<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> ch <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> str <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5b57\u8282\u7d22\u5f15&#xff1a;%d&#xff0c;\u5b57\u7b26&#xff1a;%c\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> idx<span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8f93\u51fa\u7ed3\u679c&#xff1a;<\/p>\n<p>\u5b57\u7b26\u4e32\u5b57\u8282\u957f\u5ea6&#xff1a;12<br \/>\n\u5b57\u8282\u7d22\u5f15&#xff1a;0&#xff0c;\u5b57\u7b26&#xff1a;G<br \/>\n\u5b57\u8282\u7d22\u5f15&#xff1a;1&#xff0c;\u5b57\u7b26&#xff1a;o<br \/>\n\u5b57\u8282\u7d22\u5f15&#xff1a;2&#xff0c;\u5b57\u7b26&#xff1a;\u8bed<br \/>\n\u5b57\u8282\u7d22\u5f15&#xff1a;5&#xff0c;\u5b57\u7b26&#xff1a;\u8a00<\/p>\n<p>\u539f\u56e0\u89e3\u6790&#xff1a;<\/p>\n<p>UTF-8\u7f16\u7801\u4e2d&#xff0c;\u82f1\u6587\u5b57\u7b26\u53601\u5b57\u8282&#xff0c;\u4e2d\u6587\u5b57\u7b26\u53603\u5b57\u8282&#xff0c;\u8868\u60c5\u7b26\u53f7\u53604\u5b57\u8282\u3002for-range\u4f1a\u81ea\u52a8\u8df3\u8fc7\u5b57\u8282\u95f4\u7684\u7d22\u5f15&#xff0c;\u76f4\u63a5\u5b9a\u4f4d\u5230\u6bcf\u4e2a\u5b57\u7b26\u7684\u8d77\u59cb\u5b57\u8282\u7d22\u5f15&#xff0c;\u786e\u4fdd\u6b63\u786e\u89e3\u7801\u5b57\u7b26\u3002<\/p>\n<p>\u6ce8\u610f\u4e8b\u9879&#xff1a;\u5982\u679c\u9700\u8981\u6309\u5b57\u7b26\u7d22\u5f15\u904d\u5386&#xff0c;\u53ef\u5148\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a[]rune\u7c7b\u578b&#xff08;rune\u662fint32\u7684\u522b\u540d&#xff0c;\u4ee3\u8868Unicode\u7801\u70b9&#xff09;\u3002<\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u8f6c\u6362\u4e3a[]rune&#xff0c;\u6309\u5b57\u7b26\u7d22\u5f15\u904d\u5386<\/span><br \/>\nrunes <span class=\"token operator\">:&#061;<\/span> <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token function\">rune<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> charIdx<span class=\"token punctuation\">,<\/span> ch <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> runes <span class=\"token punctuation\">{<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5b57\u7b26\u7d22\u5f15&#xff1a;%d&#xff0c;\u5b57\u7b26&#xff1a;%c\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> charIdx<span class=\"token punctuation\">,<\/span> ch<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.3 \u5751\u70b93&#xff1a;map\u904d\u5386\u987a\u5e8f\u7684\u968f\u673a\u6027<\/h4>\n<p>\u904d\u5386map\u65f6&#xff0c;for-range\u7684\u987a\u5e8f\u662f\u968f\u673a\u7684&#xff0c;\u6bcf\u6b21\u8fd0\u884c\u7a0b\u5e8f\u7684\u904d\u5386\u987a\u5e8f\u90fd\u53ef\u80fd\u4e0d\u540c\u3002\u8fd9\u662fGo\u7f16\u8bd1\u5668\u7684\u6545\u610f\u8bbe\u8ba1&#xff0c;\u76ee\u7684\u662f\u9632\u6b62\u5f00\u53d1\u8005\u4f9d\u8d56map\u7684\u904d\u5386\u987a\u5e8f&#xff08;map\u7684\u5e95\u5c42\u662f\u54c8\u5e0c\u8868&#xff0c;\u672c\u8eab\u65e0\u5e8f&#xff09;\u3002<\/p>\n<p>\u9a8c\u8bc1\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;fmt&#034;<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    m <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">map<\/span><span class=\"token punctuation\">[<\/span><span class=\"token builtin\">string<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">int<\/span><span class=\"token punctuation\">{<\/span><span class=\"token string\">&#034;a&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;b&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;c&#034;<\/span><span class=\"token punctuation\">:<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">}<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;map\u904d\u5386\u987a\u5e8f&#xff08;\u6bcf\u6b21\u8fd0\u884c\u53ef\u80fd\u4e0d\u540c&#xff09;&#xff1a;&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> k<span class=\"token punctuation\">,<\/span> v <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> m <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;key&#xff1a;%s&#xff0c;value&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">,<\/span> v<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;\u5982\u679c\u9700\u8981\u6709\u5e8f\u904d\u5386map&#xff0c;\u53ef\u5148\u5c06key\u5b58\u5165\u5207\u7247&#xff0c;\u5bf9\u5207\u7247\u6392\u5e8f\u540e&#xff0c;\u518d\u901a\u8fc7key\u904d\u5386map\u3002<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;sort&#034;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 1. \u63d0\u53d6map\u7684key\u5230\u5207\u7247<\/span><br \/>\nkeys <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token builtin\">string<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>m<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">for<\/span> k <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> m <span class=\"token punctuation\">{<\/span><br \/>\n    keys <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>keys<span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 2. \u5bf9key\u5207\u7247\u6392\u5e8f<\/span><br \/>\nsort<span class=\"token punctuation\">.<\/span><span class=\"token function\">Strings<\/span><span class=\"token punctuation\">(<\/span>keys<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\">\/\/ 3. \u6309\u6392\u5e8f\u540e\u7684key\u904d\u5386map<\/span><br \/>\n<span class=\"token keyword\">for<\/span> <span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> k <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> keys <span class=\"token punctuation\">{<\/span><br \/>\n    fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;key&#xff1a;%s&#xff0c;value&#xff1a;%d\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> k<span class=\"token punctuation\">,<\/span> m<span class=\"token punctuation\">[<\/span>k<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3.4 \u5751\u70b94&#xff1a;\u57fa\u7840\u8ba1\u6570\u5faa\u73af\u7684\u53d8\u91cf\u4f5c\u7528\u57df\u95ee\u9898<\/h4>\n<p>\u57fa\u7840\u683c\u5f0f\u7684for\u5faa\u73af\u4e2d&#xff0c;\u521d\u59cb\u5316\u7684\u53d8\u91cf\u4f5c\u7528\u57df\u662f\u6574\u4e2a\u5faa\u73af&#xff0c;\u800c\u975e\u6bcf\u6b21\u8fed\u4ee3\u3002\u5982\u679c\u5728\u5faa\u73af\u4e2d\u5b9a\u4e49\u95ed\u5305&#xff0c;\u540c\u6837\u4f1a\u51fa\u73b0\u53d8\u91cf\u590d\u7528\u95ee\u9898\u3002<\/p>\n<p>\u95ee\u9898\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token string\">&#034;fmt&#034;<\/span><br \/>\n    <span class=\"token string\">&#034;time&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">var<\/span> funcs <span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span><span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> i <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5c06\u95ed\u5305\u5b58\u5165\u5207\u7247&#xff0c;\u95ed\u5305\u5f15\u7528\u5faa\u73af\u53d8\u91cfi<\/span><br \/>\n        funcs <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>funcs<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span>i<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6267\u884c\u6240\u6709\u95ed\u5305<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token boolean\">_<\/span><span class=\"token punctuation\">,<\/span> f <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> funcs <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u9519\u8bef\u8f93\u51fa&#xff1a;<\/p>\n<p>3<br \/>\n3<br \/>\n3<\/p>\n<p>\u89e3\u51b3\u65b9\u6848&#xff1a;\u4e0efor-range\u7684\u89e3\u51b3\u65b9\u6848\u4e00\u81f4&#xff0c;\u521b\u5efa\u4e34\u65f6\u53d8\u91cf\u62f7\u8d1d\u5f53\u524d\u503c\u3002<\/p>\n<p><span class=\"token keyword\">for<\/span> i <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    temp <span class=\"token operator\">:&#061;<\/span> i <span class=\"token comment\">\/\/ \u521b\u5efa\u4e34\u65f6\u53d8\u91cf<\/span><br \/>\n    funcs <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>funcs<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">func<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        fmt<span class=\"token punctuation\">.<\/span><span class=\"token function\">Println<\/span><span class=\"token punctuation\">(<\/span>temp<span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u56db\u3001\u7f16\u8bd1\u5668\u5bf9for-range\u7684\u5e95\u5c42\u4f18\u5316\u4e0e\u89e3\u6790<\/h3>\n<p>Go\u7f16\u8bd1\u5668\u5bf9for-range\u505a\u4e86\u5927\u91cf\u4f18\u5316&#xff0c;\u4e0d\u540c\u7c7b\u578b\u7684\u53ef\u8fed\u4ee3\u5bf9\u8c61&#xff0c;\u5e95\u5c42\u5b9e\u73b0\u903b\u8f91\u4e0d\u540c\u3002\u7406\u89e3\u8fd9\u4e9b\u4f18\u5316&#xff0c;\u80fd\u5e2e\u52a9\u6211\u4eec\u5199\u51fa\u66f4\u9ad8\u6548\u7684\u4ee3\u7801\u3002<\/p>\n<h4>4.1 \u6570\u7ec4\/\u5207\u7247\u7684for-range\u4f18\u5316<\/h4>\n<p>\u904d\u5386\u6570\u7ec4\/\u5207\u7247\u65f6&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u5c06for-range\u8f6c\u6362\u4e3a\u57fa\u7840\u8ba1\u6570\u5faa\u73af&#xff0c;\u4f2a\u4ee3\u7801\u5982\u4e0b&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u539f\u59cb\u4ee3\u7801<\/span><br \/>\n<span class=\"token keyword\">for<\/span> idx<span class=\"token punctuation\">,<\/span> val <span class=\"token operator\">:&#061;<\/span> <span class=\"token keyword\">range<\/span> slice <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5faa\u73af\u4f53<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u7f16\u8bd1\u5668\u8f6c\u6362\u540e\u7684\u4f2a\u4ee3\u7801<\/span><br \/>\n<span class=\"token builtin\">len<\/span> <span class=\"token operator\">:&#061;<\/span> <span class=\"token function\">len<\/span><span class=\"token punctuation\">(<\/span>slice<span class=\"token punctuation\">)<\/span><br \/>\nidx <span class=\"token operator\">:&#061;<\/span> <span class=\"token number\">0<\/span><br \/>\n<span class=\"token keyword\">for<\/span> idx <span class=\"token operator\">&lt;<\/span> <span class=\"token builtin\">len<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    val <span class=\"token operator\">:&#061;<\/span> slice<span class=\"token punctuation\">[<\/span>idx<span class=\"token punctuation\">]<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u5faa\u73af\u4f53<\/span><br \/>\n    idx<span class=\"token operator\">&#043;&#043;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5173\u952e\u4f18\u5316&#xff1a;<\/p>\n<ul>\n<li>\n<p>\u63d0\u524d\u8ba1\u7b97\u5207\u7247\u957f\u5ea6len&#xff0c;\u907f\u514d\u6bcf\u6b21\u5faa\u73af\u90fd\u8c03\u7528len(slice)&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5faa\u73af\u53d8\u91cfidx\u548cval\u662f\u590d\u7528\u7684&#xff0c;\u8fd9\u4e5f\u662f\u5751\u70b91\u7684\u6839\u6e90&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u904d\u5386\u5927\u5207\u7247\u65f6&#xff0c;for-range\u7684\u6548\u7387\u4e0e\u624b\u52a8\u7d22\u5f15\u904d\u5386\u51e0\u4e4e\u65e0\u5dee\u5f02\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>4.2 map\u7684for-range\u5b9e\u73b0<\/h4>\n<p>\u904d\u5386map\u65f6&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u8c03\u7528runtime.mapiterinit\u548cruntime.mapiternext\u51fd\u6570&#xff0c;\u5b9e\u73b0\u6b65\u9aa4\u5982\u4e0b&#xff1a;<\/p>\n<li>\n<p>\u521d\u59cb\u5316\u8fed\u4ee3\u5668&#xff0c;\u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u8d77\u59cb\u4f4d\u7f6e&#xff08;\u4fdd\u8bc1\u904d\u5386\u987a\u5e8f\u968f\u673a&#xff09;&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u904d\u5386\u54c8\u5e0c\u8868\u7684\u6876&#xff0c;\u4f9d\u6b21\u53d6\u51fa\u6876\u4e2d\u7684\u952e\u503c\u5bf9&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u9047\u5230\u6269\u5bb9\u65f6&#xff0c;\u4f1a\u91cd\u65b0\u8ba1\u7b97\u8fed\u4ee3\u5668\u4f4d\u7f6e&#xff0c;\u786e\u4fdd\u4e0d\u91cd\u590d\u3001\u4e0d\u9057\u6f0f\u3002<\/p>\n<\/li>\n<h4>4.3 channel\u7684for-range\u5b9e\u73b0<\/h4>\n<p>\u904d\u5386channel\u65f6&#xff0c;\u7f16\u8bd1\u5668\u4f1a\u5c06for-range\u8f6c\u6362\u4e3afor { val, ok :&#061; &lt;-ch; if !ok { break; } }\u7684\u5f62\u5f0f&#xff1a;<\/p>\n<li>\n<p>\u963b\u585e\u7b49\u5f85channel\u7684\u6570\u636e&#xff0c;\u6709\u6570\u636e\u65f6\u53d6\u51fa\u5e76\u6267\u884c\u5faa\u73af\u4f53&#xff1b;<\/p>\n<\/li>\n<li>\n<p>\u5f53channel\u88ab\u5173\u95ed\u4e14\u65e0\u6570\u636e\u65f6&#xff0c;ok\u4e3afalse&#xff0c;\u81ea\u52a8\u9000\u51fa\u5faa\u73af\u3002<\/p>\n<\/li>\n<h3>\u4e94\u3001for\u5faa\u73af\u7684\u6700\u4f73\u5b9e\u8df5<\/h3>\n<h4>5.1 \u4f18\u5148\u4f7f\u7528for-range\u904d\u5386\u6570\u636e<\/h4>\n<p>\u5bf9\u4e8e\u6570\u7ec4\u3001\u5207\u7247\u3001\u5b57\u7b26\u4e32\u3001map\u3001channel&#xff0c;\u4f18\u5148\u4f7f\u7528for-range\u904d\u5386&#xff0c;\u4ee3\u7801\u66f4\u7b80\u6d01&#xff0c;\u53ef\u8bfb\u6027\u66f4\u9ad8&#xff0c;\u4e14\u7f16\u8bd1\u5668\u4f1a\u505a\u4f18\u5316&#xff0c;\u6027\u80fd\u4e0d\u4f4e\u4e8e\u624b\u52a8\u7d22\u5f15\u904d\u5386\u3002<\/p>\n<h4>5.2 \u907f\u514d\u5728\u5faa\u73af\u4e2d\u521b\u5efa\u5927\u91cf\u5bf9\u8c61<\/h4>\n<p>\u5faa\u73af\u4f53\u4e2d\u9891\u7e41\u521b\u5efa\u5bf9\u8c61\u4f1a\u89e6\u53d1GC&#xff0c;\u5f71\u54cd\u6027\u80fd\u3002\u5982\u679c\u9700\u8981\u521b\u5efa\u5bf9\u8c61&#xff0c;\u53ef\u63d0\u524d\u521d\u59cb\u5316\u5185\u5b58\u6c60\u6216\u590d\u7528\u5bf9\u8c61\u3002<\/p>\n<h4>5.3 \u5faa\u73af\u53d8\u91cf\u590d\u7528\u95ee\u9898\u7684\u901a\u7528\u89e3\u51b3\u65b9\u6848<\/h4>\n<p>\u65e0\u8bba\u662ffor-range\u8fd8\u662f\u57fa\u7840\u8ba1\u6570\u5faa\u73af&#xff0c;\u53ea\u8981\u5728\u5faa\u73af\u4e2d\u4f7f\u7528\u95ed\u5305\u6216Goroutine&#xff0c;\u5fc5\u987b\u901a\u8fc7\u4e34\u65f6\u53d8\u91cf\u62f7\u8d1d\u5f53\u524d\u503c&#xff0c;\u907f\u514d\u5f15\u7528\u590d\u7528\u7684\u5faa\u73af\u53d8\u91cf\u3002<\/p>\n<h4>5.4 \u6709\u5e8f\u904d\u5386map\u7684\u6807\u51c6\u6d41\u7a0b<\/h4>\n<p>\u5982\u679c\u9700\u8981\u6709\u5e8f\u904d\u5386map&#xff0c;\u6807\u51c6\u6d41\u7a0b\u662f&#xff1a;\u63d0\u53d6key\u2192\u6392\u5e8fkey\u2192\u6309key\u904d\u5386map&#xff0c;\u4e0d\u8981\u4f9d\u8d56\u4efb\u4f55\u201c\u56fa\u5b9a\u987a\u5e8f\u201d\u7684\u6280\u5de7\u3002<\/p>\n<h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<p>Go\u8bed\u8a00\u7684for\u5faa\u73af\u4ee5\u6781\u7b80\u7684\u8bed\u6cd5\u8986\u76d6\u4e86\u6240\u6709\u5faa\u73af\u573a\u666f&#xff0c;for-range\u8bed\u6cd5\u7cd6\u66f4\u662f\u63d0\u5347\u4e86\u904d\u5386\u6570\u636e\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002\u4f46\u5faa\u73af\u7684\u5751\u70b9\u4e5f\u96c6\u4e2d\u5728\u8bed\u6cd5\u7cd6\u7684\u5e95\u5c42\u5b9e\u73b0\u4e0a\u2014\u2014\u5faa\u73af\u53d8\u91cf\u590d\u7528\u662f\u6700\u6838\u5fc3\u7684\u5751\u70b9&#xff0c;\u638c\u63e1\u4e34\u65f6\u53d8\u91cf\u62f7\u8d1d\u7684\u89e3\u51b3\u65b9\u6848&#xff0c;\u5c31\u80fd\u89c4\u907f90%\u7684\u95ee\u9898\u3002<\/p>\n<p>\u7406\u89e3\u7f16\u8bd1\u5668\u5bf9for-range\u7684\u4f18\u5316\u903b\u8f91&#xff0c;\u4e0d\u4ec5\u80fd\u5e2e\u52a9\u6211\u4eec\u907f\u5751&#xff0c;\u8fd8\u80fd\u5199\u51fa\u66f4\u9ad8\u6548\u7684\u4ee3\u7801\u3002\u6700\u7ec8&#xff0c;\u7f16\u5199for\u5faa\u73af\u7684\u6838\u5fc3\u539f\u5219\u662f&#xff1a;\u7b80\u6d01\u4f18\u5148&#xff0c;\u7406\u89e3\u5e95\u5c42&#xff0c;\u89c4\u907f\u590d\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001for\u5faa\u73af&#xff1a;Go\u8bed\u8a00\u552f\u4e00\u7684\u5faa\u73af\u8bed\u53e5&#xff0c;\u6781\u7b80\u800c\u5168\u80fd<br 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