{"id":205684,"date":"2025-06-12T11:07:19","date_gmt":"2025-06-12T03:07:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205684\/"},"modified":"2025-06-12T11:07:19","modified_gmt":"2025-06-12T03:07:19","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-go-%e4%b8%ad%e4%bd%bf%e7%94%a8%e5%8f%8d%e5%b0%84%e6%a3%80%e6%9f%a5%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205684\/","title":{"rendered":"\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570"},"content":{"rendered":"<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5 Go \u4e2d\u51fd\u6570\u53c2\u6570\u7684\u65b9\u6cd5\uff1a\u5bfc\u5165 &#8220;reflect&#8221; \u5305\u3002\u83b7\u53d6\u51fd\u6570\u7c7b\u578b\u3002\u4f7f\u7528 NumIn() \u83b7\u53d6\u53c2\u6570\u6570\u91cf\u3002\u904d\u5386\u6bcf\u4e2a\u53c2\u6570\uff0c\u4f7f\u7528 In() \u83b7\u53d6\u7c7b\u578b\u548c\u4f7f\u7528 Name \u83b7\u540d\u5b57\u3002,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729943086671cd62e24dd6.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570<\/strong>,\u5728 Go \u4e2d\uff0c\u53cd\u5c04\u5305\u63d0\u4f9b\u4e86\u68c0\u67e5\u548c\u64cd\u4f5c\u8fd0\u884c\u65f6\u7c7b\u578b\u4fe1\u606f\u7684\u80fd\u529b\u3002\u5229\u7528\u53cd\u5c04\uff0c\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u83b7\u53d6\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u3001\u540d\u79f0\u3001\u6570\u91cf\u7b49\u4fe1\u606f\u3002,<br \/>\n<strong>\u4ee3\u7801<\/strong>,<br \/>\n<strong>\u5b9e\u6218\u6848\u4f8b<\/strong>,\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u7684\u5b9e\u6218\u6848\u4f8b\uff1a,\u5728\u672c\u4f8b\u4e2d\uff0c<br \/>\n<code>implementsWriter<\/code> \u51fd\u6570\u4f7f\u7528\u53cd\u5c04\u6765\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86<br \/>\n<code>Writer<\/code> \u63a5\u53e3\u3002\u8be5\u51fd\u6570\u904d\u5386\u5bf9\u8c61\u7c7b\u578b\u7684\u6bcf\u4e2a\u65b9\u6cd5\uff0c\u68c0\u67e5\u662f\u5426\u5b58\u5728\u540d\u4e3a<br \/>\n<code>Write<\/code> \u7684\u65b9\u6cd5\uff0c\u5e76\u9a8c\u8bc1\u65b9\u6cd5\u7684\u53c2\u6570\u662f\u5426\u7b26\u5408\u9884\u671f\u7c7b\u578b\u3002,\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8eGo,\u53cd\u5c04,\u51fd\u6570\u53c2\u6570\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,<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>\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570<\/span><\/p>\n<h1>\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570<\/h1>\n<p><span>2024-10-26 19:45:01<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p>\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5 Go \u4e2d\u51fd\u6570\u53c2\u6570\u7684\u65b9\u6cd5\uff1a\u5bfc\u5165 &#8220;reflect&#8221; \u5305\u3002\u83b7\u53d6\u51fd\u6570\u7c7b\u578b\u3002\u4f7f\u7528 NumIn() \u83b7\u53d6\u53c2\u6570\u6570\u91cf\u3002\u904d\u5386\u6bcf\u4e2a\u53c2\u6570\uff0c\u4f7f\u7528 In() \u83b7\u53d6\u7c7b\u578b\u548c\u4f7f\u7528 Name \u83b7\u540d\u5b57\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729943086671cd62e24dd6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570<\/strong><\/p>\n<p>\u5728 Go \u4e2d\uff0c\u53cd\u5c04\u5305\u63d0\u4f9b\u4e86\u68c0\u67e5\u548c\u64cd\u4f5c\u8fd0\u884c\u65f6\u7c7b\u578b\u4fe1\u606f\u7684\u80fd\u529b\u3002\u5229\u7528\u53cd\u5c04\uff0c\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u83b7\u53d6\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u3001\u540d\u79f0\u3001\u6570\u91cf\u7b49\u4fe1\u606f\u3002<\/p>\n<p><strong>\u4ee3\u7801<\/strong><\/p>\n<pre>import (\n    \"fmt\"\n    \"reflect\"\n)\n\nfunc main() {\n    \/\/ \u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\n    sum := func(a int, b int) int {\n        return a + b\n    }\n\n    \/\/ \u83b7\u53d6\u51fd\u6570\u7c7b\u578b\n    t := reflect.TypeOf(sum)\n\n    \/\/ \u83b7\u53d6\u51fd\u6570\u53c2\u6570\u4fe1\u606f\n    params := t.NumIn()\n    fmt.Printf(\"\u51fd\u6570\u6709 %d \u4e2a\u53c2\u6570\\n\", params)\n\n    for i := 0; i &lt; params; i++ {\n        param := t.In(i)\n        fmt.Printf(\"\u53c2\u6570 %d \u7684\u7c7b\u578b: %s\\n\", i, param)\n        fmt.Printf(\"\u53c2\u6570 %d \u7684\u540d\u79f0: %s\\n\", i, param.Name)\n    }\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u7684\u5b9e\u6218\u6848\u4f8b\uff1a<\/p>\n<pre>\/\/ \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u63a5\u53e3\ntype Writer interface {\n    Write(bytes []byte) error\n}\n\n\/\/ \u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86 Writer \u63a5\u53e3\nfunc implementsWriter(obj interface{}) bool {\n    t := reflect.TypeOf(obj)\n    for i := 0; i &lt; t.NumMethod(); i++ {\n        method := t.Method(i)\n        if method.Name == \"Write\" {\n            params := method.Type.NumIn()\n            if params == 1 {\n                param := method.Type.In(0)\n                if param.Kind() == reflect.Slice &amp;&amp; param.Elem().Kind() == reflect.Uint8 {\n                    return true\n                }\n            }\n        }\n    }\n    return false\n}\n\n\/\/ \u4e3b\u51fd\u6570\nfunc main() {\n    \/\/ \u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86 Writer \u63a5\u53e3\n    fmt.Println(implementsWriter(os.Stdout)) \/\/ \u8f93\u51fa: true\n    fmt.Println(implementsWriter(123)) \/\/ \u8f93\u51fa: false\n}<\/pre>\n<p>\u5728\u672c\u4f8b\u4e2d\uff0c<code>implementsWriter<\/code> \u51fd\u6570\u4f7f\u7528\u53cd\u5c04\u6765\u68c0\u67e5\u4e00\u4e2a\u5bf9\u8c61\u662f\u5426\u5b9e\u73b0\u4e86 <code>Writer<\/code> \u63a5\u53e3\u3002\u8be5\u51fd\u6570\u904d\u5386\u5bf9\u8c61\u7c7b\u578b\u7684\u6bcf\u4e2a\u65b9\u6cd5\uff0c\u68c0\u67e5\u662f\u5426\u5b58\u5728\u540d\u4e3a <code>Write<\/code> \u7684\u65b9\u6cd5\uff0c\u5e76\u9a8c\u8bc1\u65b9\u6cd5\u7684\u53c2\u6570\u662f\u5426\u7b26\u5408\u9884\u671f\u7c7b\u578b\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5728 Go \u4e2d\u4f7f\u7528\u53cd\u5c04\u68c0\u67e5\u51fd\u6570\u53c2\u6570\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8eGo,\u53cd\u5c04,\u51fd\u6570\u53c2\u6570\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   golang\u6846\u67b6\u4e0e\u6d41\u884c\u6846\u67b6\u7684\u5bf9\u6bd4\uff1a\u54ea\u4e2a\u6846\u67b6\u66f4\u9002\u5408\u4f01\u4e1a\u7ea7\u5f00\u53d1\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5728\u4e0d\u540c\u7684 Java \u7248\u672c\u4e4b\u95f4\u6bd4\u8f83\u51fd\u6570\u6267\u884c\u6548\u7387\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5&#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-205684","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205684","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=205684"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205684\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205684"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205684"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205684"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}