{"id":205769,"date":"2025-06-12T11:50:30","date_gmt":"2025-06-12T03:50:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205769\/"},"modified":"2025-06-12T11:50:30","modified_gmt":"2025-06-12T03:50:30","slug":"golang-%e5%8c%bf%e5%90%8d%e5%87%bd%e6%95%b0%e9%97%ad%e5%8c%85%e7%9a%84%e7%89%b9%e6%80%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205769\/","title":{"rendered":"Golang \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027"},"content":{"rendered":"<p>\u5728GOLANG\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929GOLANG\u5c31\u6574\u7406\u5206\u4eab\u300aGOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002,Go \u8bed\u8a00\u4e2d\u7684\u533f\u540d\u51fd\u6570\u95ed\u5305\u5141\u8bb8\u5185\u90e8\u51fd\u6570\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u53d8\u91cf\uff0c\u5305\u62ec\uff1a\u81ea\u7531\u53d8\u91cf\uff1a\u95ed\u5305\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8be5\u53d8\u91cf\u5df2\u88ab\u9500\u6bc1\u3002\u503c\u6355\u83b7\uff1a\u95ed\u5305\u590d\u5236\u5916\u90e8\u53d8\u91cf\u7684\u503c\u800c\u4e0d\u662f\u5f15\u7528\uff0c\u786e\u4fdd\u4efb\u4f55\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u95ed\u5305\u5b58\u50a8\u7684\u503c\u3002\u9003\u9038\uff1a\u5f53\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u4f20\u9012\u7ed9\u95ed\u5305\u521b\u5efa\u4e4b\u540e\u7684\u51fd\u6570\u6216\u65b9\u6cd5\u65f6\uff0c\u4f1a\u53d1\u751f\u9003\u9038\uff0c\u5bfc\u81f4\u95ed\u5305\u6301\u6709\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729995296671da22027480.jpg\" class=\"aligncenter\">,<br \/>\n<strong>Go \u8bed\u8a00\u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027<\/strong>,\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u533f\u540d\u51fd\u6570\u95ed\u5305\u662f\u533f\u540d\u51fd\u6570\u5185\u90e8\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u53d8\u91cf\u7684\u51fd\u6570\u3002,<br \/>\n<strong>\u7279\u6027\uff1a<\/strong>,<br \/>\n<strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong>,\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\uff1a,\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<br \/>\n<code>outerFunc<\/code> \u662f\u4e00\u4e2a\u533f\u540d\u51fd\u6570\uff0c\u5b83\u8bbf\u95ee\u548c\u6253\u5370\u5916\u90e8\u53d8\u91cf<br \/>\n<code>num<\/code> \u7684\u503c\u3002\u5373\u4f7f\u5728\u533f\u540d\u51fd\u6570\u6267\u884c\u540e\u53d8\u91cf<br \/>\n<code>num<\/code> \u88ab\u4fee\u6539\uff0c\u5b83\u4ecd\u7136\u4f7f\u7528\u6700\u521d\u6355\u83b7\u7684\u503c 10\u3002,<br \/>\n<strong>\u6ce8\u610f\uff1a<\/strong>,\u672c\u7bc7\u5173\u4e8e\u300aGOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u5bf9\u4e8e\u53ea\u4f7f\u7528\u5916\u90e8\u53d8\u91cf\u7684\u4e0d\u53ef\u53d8\u503c\u7684\u60c5\u51b5\uff0c\u4f7f\u7528\u95ed\u5305\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002,\u8fc7\u5ea6\u4f7f\u7528\u95ed\u5305\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\u548c\u8c03\u8bd5\u3002,\u95ed\u5305\u4f1a\u4ea7\u751f\u989d\u5916\u7684\u5185\u5b58\u5f00\u9500\uff0c\u56e0\u4e3a\u5b83\u4eec\u5b58\u50a8\u4e86\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002,<br \/>\n<strong>\u503c\u6355\u83b7\uff08Value Capture\uff09\uff1a<\/strong>\u95ed\u5305\u4f1a\u590d\u5236\u5916\u90e8\u53d8\u91cf\u7684\u503c\u800c\u4e0d\u662f\u5f15\u7528\uff0c\u4efb\u4f55\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u95ed\u5305\u5b58\u50a8\u7684\u503c\u3002,<br \/>\n<strong>\u81ea\u7531\u53d8\u91cf\uff08Free Variable\uff09\uff1a<\/strong>\u533f\u540d\u51fd\u6570\u95ed\u5305\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8be5\u53d8\u91cf\u5728\u533f\u540d\u51fd\u6570\u6267\u884c\u540e\u5df2\u88ab\u9500\u6bc1\u3002,<br \/>\n<strong>\u9003\u9038\uff08Escape\uff09\uff1a<\/strong>\u5982\u679c\u5728\u95ed\u5305\u521b\u5efa\u4e4b\u540e\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u88ab\u4f20\u9012\u7ed9\u51fd\u6570\u6216\u65b9\u6cd5\uff0c\u5219\u4f1a\u53d1\u751f\u53d8\u91cf\u9003\u9038\uff0c\u6b64\u65f6\u95ed\u5305\u4f1a\u6301\u6709\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002,\u5728GOLANG\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929GOLANG\u5c31\u6574\u7406\u5206\u4eab\u300aGOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027<\/span><\/p>\n<h1>GOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027<\/h1>\n<p><span>2024-10-27 10:15:11<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728GOLANG\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929GOLANG\u5c31\u6574\u7406\u5206\u4eab\u300aGOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027\u300b\uff0c\u804a\u804a\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<p>Go \u8bed\u8a00\u4e2d\u7684\u533f\u540d\u51fd\u6570\u95ed\u5305\u5141\u8bb8\u5185\u90e8\u51fd\u6570\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u53d8\u91cf\uff0c\u5305\u62ec\uff1a\u81ea\u7531\u53d8\u91cf\uff1a\u95ed\u5305\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8be5\u53d8\u91cf\u5df2\u88ab\u9500\u6bc1\u3002\u503c\u6355\u83b7\uff1a\u95ed\u5305\u590d\u5236\u5916\u90e8\u53d8\u91cf\u7684\u503c\u800c\u4e0d\u662f\u5f15\u7528\uff0c\u786e\u4fdd\u4efb\u4f55\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u95ed\u5305\u5b58\u50a8\u7684\u503c\u3002\u9003\u9038\uff1a\u5f53\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u4f20\u9012\u7ed9\u95ed\u5305\u521b\u5efa\u4e4b\u540e\u7684\u51fd\u6570\u6216\u65b9\u6cd5\u65f6\uff0c\u4f1a\u53d1\u751f\u9003\u9038\uff0c\u5bfc\u81f4\u95ed\u5305\u6301\u6709\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729995296671da22027480.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Go \u8bed\u8a00\u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027<\/strong><\/p>\n<p>\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u533f\u540d\u51fd\u6570\u95ed\u5305\u662f\u533f\u540d\u51fd\u6570\u5185\u90e8\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u53d8\u91cf\u7684\u51fd\u6570\u3002<\/p>\n<p><strong>\u7279\u6027\uff1a<\/strong><\/p>\n<ul>\n<li><strong>\u81ea\u7531\u53d8\u91cf\uff08Free Variable\uff09\uff1a<\/strong>\u533f\u540d\u51fd\u6570\u95ed\u5305\u53ef\u4ee5\u8bbf\u95ee\u5916\u90e8\u4f5c\u7528\u57df\u5b9a\u4e49\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u8be5\u53d8\u91cf\u5728\u533f\u540d\u51fd\u6570\u6267\u884c\u540e\u5df2\u88ab\u9500\u6bc1\u3002<\/li>\n<li><strong>\u503c\u6355\u83b7\uff08Value Capture\uff09\uff1a<\/strong>\u95ed\u5305\u4f1a\u590d\u5236\u5916\u90e8\u53d8\u91cf\u7684\u503c\u800c\u4e0d\u662f\u5f15\u7528\uff0c\u4efb\u4f55\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u4fee\u6539\u90fd\u4e0d\u4f1a\u5f71\u54cd\u95ed\u5305\u5b58\u50a8\u7684\u503c\u3002<\/li>\n<li><strong>\u9003\u9038\uff08Escape\uff09\uff1a<\/strong>\u5982\u679c\u5728\u95ed\u5305\u521b\u5efa\u4e4b\u540e\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u88ab\u4f20\u9012\u7ed9\u51fd\u6570\u6216\u65b9\u6cd5\uff0c\u5219\u4f1a\u53d1\u751f\u53d8\u91cf\u9003\u9038\uff0c\u6b64\u65f6\u95ed\u5305\u4f1a\u6301\u6709\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>package main\n\nimport \"fmt\"\n\nfunc main() {\n    num := 10\n\n    outerFunc := func() {\n        fmt.Println(num)\n    }\n\n    num++\n    outerFunc()\n}<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>outerFunc<\/code> \u662f\u4e00\u4e2a\u533f\u540d\u51fd\u6570\uff0c\u5b83\u8bbf\u95ee\u548c\u6253\u5370\u5916\u90e8\u53d8\u91cf <code>num<\/code> \u7684\u503c\u3002\u5373\u4f7f\u5728\u533f\u540d\u51fd\u6570\u6267\u884c\u540e\u53d8\u91cf <code>num<\/code> \u88ab\u4fee\u6539\uff0c\u5b83\u4ecd\u7136\u4f7f\u7528\u6700\u521d\u6355\u83b7\u7684\u503c 10\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u95ed\u5305\u4f1a\u4ea7\u751f\u989d\u5916\u7684\u5185\u5b58\u5f00\u9500\uff0c\u56e0\u4e3a\u5b83\u4eec\u5b58\u50a8\u4e86\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u5f15\u7528\u3002<\/li>\n<li>\u8fc7\u5ea6\u4f7f\u7528\u95ed\u5305\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\u548c\u8c03\u8bd5\u3002<\/li>\n<li>\u5bf9\u4e8e\u53ea\u4f7f\u7528\u5916\u90e8\u53d8\u91cf\u7684\u4e0d\u53ef\u53d8\u503c\u7684\u60c5\u51b5\uff0c\u4f7f\u7528\u95ed\u5305\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\u3002<\/li>\n<\/ul>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aGOLANG \u533f\u540d\u51fd\u6570\u95ed\u5305\u7684\u7279\u6027\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   php\u51fd\u6570\u6587\u4ef6\u64cd\u4f5c\u6307\u5357\uff1a\u5982\u4f55\u83b7\u53d6\u6587\u4ef6\u5927\u5c0f\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   MySQL \u60b2\u89c2\u9501\uff1a\u9ad8\u5e76\u53d1\u573a\u666f\u8be5\u7528\u5b83\u5417\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5728GOLANG\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205769","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205769"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205769\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}