{"id":57918,"date":"2024-10-10T22:14:16","date_gmt":"2024-10-10T14:14:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57918\/"},"modified":"2024-10-10T22:14:16","modified_gmt":"2024-10-10T14:14:16","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e7%a9%ba%e6%8e%a5%e5%8f%a3%e9%a1%9e%e5%9e%8b%ef%bc%88interface%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57918\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00\u7a7a\u63a5\u53e3\u985e\u578b\uff08interface{}\uff09"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e7%a9%ba%e6%8e%a5%e5%8f%a3%e9%a1%9e%e5%9e%8b%ef%bc%88interface%ef%bc%89-tgxsmQsdss\">GO\u6559\u7a0b: Go \u8a9e\u8a00\u7a7a\u63a5\u53e3\u985e\u578b\uff08interface{}\uff09<\/h1>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u7a7a\u63a5\u53e3\u985e\u578b\uff08interface{}\uff09\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u6982\u5ff5\u3002\u5b83\u5141\u8a31\u6211\u5011\u5728\u4e0d\u78ba\u5b9a\u5177\u9ad4\u985e\u578b\u7684\u60c5\u6cc1\u4e0b\uff0c\u9748\u6d3b\u5730\u8655\u7406\u5404\u7a2e\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u7a7a\u63a5\u53e3\u7684\u5b9a\u7fa9\u3001\u7528\u9014\u53ca\u5176\u5728\u5be6\u969b\u7de8\u7a0b\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%a9%ba%e6%8e%a5%e5%8f%a3%ef%bc%88interface%ef%bc%89%ef%bc%9f-tgxsmQsdss\">\u4ec0\u9ebc\u662f\u7a7a\u63a5\u53e3\uff08interface{}\uff09\uff1f<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u63a5\u53e3\u662f\u4e00\u7d44\u65b9\u6cd5\u7684\u96c6\u5408\uff0c\u800c\u7a7a\u63a5\u53e3\u5247\u662f\u4e00\u500b\u4e0d\u5305\u542b\u4efb\u4f55\u65b9\u6cd5\u7684\u63a5\u53e3\u3002\u9019\u610f\u5473\u8457\u4efb\u4f55\u985e\u578b\u90fd\u53ef\u4ee5\u5be6\u73fe\u7a7a\u63a5\u53e3\uff0c\u56e0\u70ba\u6240\u6709\u985e\u578b\u90fd\u81f3\u5c11\u6709\u96f6\u500b\u65b9\u6cd5\u3002\u7a7a\u63a5\u53e3\u7684\u5b9a\u7fa9\u5982\u4e0b\uff1a<\/p>\n<pre><code>type interface{} struct {}<\/code><\/pre>\n<p>\u7531\u65bc\u7a7a\u63a5\u53e3\u53ef\u4ee5\u63a5\u53d7\u4efb\u4f55\u985e\u578b\u7684\u503c\uff0c\u56e0\u6b64\u5b83\u5728\u9700\u8981\u901a\u7528\u6027\u548c\u9748\u6d3b\u6027\u7684\u5834\u666f\u4e2d\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e7%a9%ba%e6%8e%a5%e5%8f%a3%e7%9a%84%e7%94%a8%e9%80%94-tgxsmQsdss\">\u7a7a\u63a5\u53e3\u7684\u7528\u9014<\/h2>\n<p>\u7a7a\u63a5\u53e3\u7684\u4e3b\u8981\u7528\u9014\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u901a\u7528\u6578\u64da\u7d50\u69cb\uff1a<\/strong>\u7a7a\u63a5\u53e3\u53ef\u4ee5\u7528\u65bc\u5275\u5efa\u901a\u7528\u6578\u64da\u7d50\u69cb\uff0c\u4f8b\u5982\u5207\u7247\u6216\u6620\u5c04\uff0c\u9019\u4e9b\u7d50\u69cb\u53ef\u4ee5\u5b58\u5132\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u51fd\u6578\u53c3\u6578\uff1a<\/strong>\u51fd\u6578\u53ef\u4ee5\u63a5\u53d7\u7a7a\u63a5\u53e3\u4f5c\u70ba\u53c3\u6578\uff0c\u9019\u6a23\u53ef\u4ee5\u4f7f\u51fd\u6578\u66f4\u52a0\u9748\u6d3b\uff0c\u80fd\u5920\u8655\u7406\u591a\u7a2e\u4e0d\u540c\u985e\u578b\u7684\u8f38\u5165\u3002<\/li>\n<li><strong>\u985e\u578b\u65b7\u8a00\uff1a<\/strong>\u901a\u904e\u985e\u578b\u65b7\u8a00\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u7a7a\u63a5\u53e3\u4e2d\u7684\u503c\u8f49\u63db\u70ba\u5177\u9ad4\u985e\u578b\uff0c\u5f9e\u800c\u9032\u884c\u9032\u4e00\u6b65\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%a9%ba%e6%8e%a5%e5%8f%a3%e7%9a%84%e7%a4%ba%e4%be%8b-tgxsmQsdss\">\u4f7f\u7528\u7a7a\u63a5\u53e3\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528\u7a7a\u63a5\u53e3\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>package main\n\nimport \"fmt\"\n\nfunc printValue(value interface{}) {\n    fmt.Println(value)\n}\n\nfunc main() {\n    printValue(42)            \/\/ \u6574\u6578\n    printValue(\"Hello, Go!\") \/\/ \u5b57\u4e32\n    printValue(3.14)         \/\/ \u6d6e\u9ede\u6578\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u51fd\u6578 <code>printValue<\/code> \u63a5\u53d7\u4e00\u500b\u7a7a\u63a5\u53e3\u4f5c\u70ba\u53c3\u6578\uff0c\u4e26\u80fd\u5920\u6253\u5370\u51fa\u4e0d\u540c\u985e\u578b\u7684\u503c\u3002<\/p>\n<h2 id=\"%e9%a1%9e%e5%9e%8b%e6%96%b7%e8%a8%80-tgxsmQsdss\">\u985e\u578b\u65b7\u8a00<\/h2>\n<p>\u985e\u578b\u65b7\u8a00\u662f\u5c07\u7a7a\u63a5\u53e3\u4e2d\u7684\u503c\u8f49\u63db\u70ba\u5177\u9ad4\u985e\u578b\u7684\u904e\u7a0b\u3002\u4ee5\u4e0b\u662f\u985e\u578b\u65b7\u8a00\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>package main\n\nimport \"fmt\"\n\nfunc main() {\n    var value interface{} = \"Hello, Go!\"\n\n    \/\/ \u985e\u578b\u65b7\u8a00\n    strValue, ok := value.(string)\n    if ok {\n        fmt.Println(\"Value is a string:\", strValue)\n    } else {\n        fmt.Println(\"Value is not a string\")\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u985e\u578b\u65b7\u8a00\u5c07\u7a7a\u63a5\u53e3\u4e2d\u7684\u503c\u8f49\u63db\u70ba\u5b57\u4e32\u3002\u5982\u679c\u8f49\u63db\u6210\u529f\uff0c<code>ok<\/code> \u8b8a\u6578\u5c07\u70ba <code>true<\/code>\uff0c\u5426\u5247\u70ba <code>false<\/code>\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-tgxsmQsdss\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u7a7a\u63a5\u53e3\u63d0\u4f9b\u4e86\u9748\u6d3b\u6027\uff0c\u4f46\u904e\u5ea6\u4f7f\u7528\u53ef\u80fd\u6703\u5c0e\u81f4\u4ee3\u78bc\u53ef\u8b80\u6027\u964d\u4f4e\u548c\u985e\u578b\u5b89\u5168\u6027\u554f\u984c\u3002\u56e0\u6b64\uff0c\u5728\u4f7f\u7528\u7a7a\u63a5\u53e3\u6642\uff0c\u61c9\u8b39\u614e\u8003\u616e\u5176\u5fc5\u8981\u6027\uff0c\u4e26\u76e1\u91cf\u4f7f\u7528\u5177\u9ad4\u985e\u578b\u4f86\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-tgxsmQsdss\">\u7e3d\u7d50<\/h2>\n<p>\u7a7a\u63a5\u53e3\uff08interface{}\uff09\u5728 Go \u8a9e\u8a00\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u63d0\u4f9b\u9748\u6d3b\u6027\u548c\u901a\u7528\u6027\u3002\u901a\u904e\u5408\u7406\u4f7f\u7528\u7a7a\u63a5\u53e3\uff0c\u6211\u5011\u53ef\u4ee5\u5275\u5efa\u66f4\u5177\u5f48\u6027\u7684\u6578\u64da\u7d50\u69cb\u548c\u51fd\u6578\u3002\u7136\u800c\uff0c\u958b\u767c\u8005\u61c9\u8a72\u6ce8\u610f\u5728\u4f7f\u7528\u7a7a\u63a5\u53e3\u6642\u4fdd\u6301\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u985e\u578b\u5b89\u5168\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u548c\u7a69\u5b9a\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u7279\u5225\u662f\u5728\u9999\u6e2f\u7684\u958b\u767c\u74b0\u5883\u4e2d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u4e86\u89e3 Go \u8a9e\u8a00\u7684\u7a7a\u63a5\u53e3\u985e\u578b\uff08interface{}\uff09\uff0c\u63a2\u7d22\u5176\u7279\u6027\u3001\u7528\u6cd5\u53ca\u5728\u5be6\u969b\u958b\u767c\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57918","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57918","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=57918"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57918\/revisions"}],"predecessor-version":[{"id":57919,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57918\/revisions\/57919"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57918"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57918"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}