{"id":206200,"date":"2025-06-12T11:56:33","date_gmt":"2025-06-12T03:56:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206200\/"},"modified":"2025-06-12T11:56:33","modified_gmt":"2025-06-12T03:56:33","slug":"go-%e5%8f%8d%e5%b0%84-elem-%e6%96%b9%e6%b3%95%e6%93%8d%e4%bd%9c%e6%8c%87%e9%92%88%e5%af%b9%e8%b1%a1%e6%97%b6%e8%bf%94%e5%9b%9e%e5%80%bc%e7%9a%84%e5%90%ab%e4%b9%89%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206200\/","title":{"rendered":"Go \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p>\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241106\/1730865273672ae87905b52.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go \u53cd\u5c04\uff08reflect\uff09elem\u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49<\/strong>,\u5728\u4f7f\u7528go\u8bed\u8a00\u7684\u53cd\u53d1\u5c04\uff08reflect\uff09\u5e93\u5904\u7406\u6307\u9488\u5bf9\u8c61\u65f6\uff0c\u8c03\u7528elem\u65b9\u6cd5\u83b7\u53d6\u7684\u5185\u5b58\u5730\u5740\u542b\u4e49\u5982\u4e0b\uff1a,\u5bf9\u4e8e\u6307\u9488\u5bf9\u8c61\uff0c\u7b2c\u4e00\u4e2aelem()\u76f8\u5f53\u4e8e\u5bf9\u6307\u9488\u8fdb\u884c\u89e3\u5f15\u7528\uff0c\u83b7\u53d6\u6307\u9488\u6240\u6307\u5411\u7684\u5b9e\u9645\u503c\u3002,\u5728\u95ee\u9898\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff1a,\u8fd9\u5c06\u8fd4\u56de\u6307\u9488\u53d8\u91cfa\u6240\u6307\u5411\u7684\u503c\u7684reflect.value\uff0c\u800ca\u672c\u8eab\u662f\u4e00\u4e2a\u6307\u9488\uff0c\u6307\u5411\u53d8\u91cfb\u3002\u56e0\u6b64\uff0c\u6b64\u5904\u83b7\u53d6\u7684\u5185\u5b58\u5730\u57400xc00003a1f0\u662f\u53d8\u91cfb\u7684\u5730\u5740\u3002,\u8fdb\u4e00\u6b65\u8c03\u7528elem()\u65b9\u6cd5\uff1a,\u8fd9\u5c06\u8fd4\u56de\u53d8\u91cfb\u7684reflect.value\uff0c\u5e76\u5bf9\u5176\u5b9e\u9645\u503c\u8fdb\u884c\u89e3\u5f15\u7528\uff0c\u8fd4\u56deb\u672c\u8eab\u7684\u5185\u5b58\u5730\u5740\u3002\u56e0\u6b64\uff0c\u6b64\u5904\u83b7\u53d6\u7684\u5185\u5b58\u5730\u5740{0}\u662f\u53d8\u91cfb\u7684\u5b9e\u9645\u503c\u5730\u5740\u3002,\u603b\u4e4b\uff0c\u5728\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\uff0celem\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u6307\u5411\u6307\u9488\u6240\u6307\u5411\u7684\u5b9e\u9645\u503c\uff0c\u800c\u7b2c\u4e00\u4e2aelem()\u64cd\u4f5c\u76f8\u5f53\u4e8e\u6307\u9488\u89e3\u5f15\u7528\u3002,\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301GOLANG\uff01\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u3002,go \u53cd\u5c04\uff08reflect\uff09elem\u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49,\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~,<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>Go \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/span><\/p>\n<h1>Go \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p><span>2024-11-06 11:54:48<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u7684\u6587\u7ae0\u4e86\uff0c\u81ea\u5df1\u5728\u521d\u6b21\u9605\u8bfb\u8fd9\u4e9b\u6587\u7ae0\u4e2d\uff0c\u4e5f\u89c1\u8bc6\u5230\u4e86\u5f88\u591a\u5b66\u4e60\u601d\u8def\uff1b\u90a3\u4e48\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u53cd\u5c04 elem \u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u4e5f\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u5927\u5bb6\uff0c\u5982\u679c\u9605\u8bfb\u5b8c\u540e\u771f\u7684\u5bf9\u4f60\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u6709\u5e2e\u52a9\uff0c\u6b22\u8fce\u52a8\u52a8\u624b\u6307\uff0c\u8bc4\u8bba\u7559\u8a00\u5e76\u5206\u4eab~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241106\/1730865273672ae87905b52.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go \u53cd\u5c04\uff08reflect\uff09elem\u65b9\u6cd5\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\u8fd4\u56de\u503c\u7684\u542b\u4e49<\/strong><\/p>\n<p>\u5728\u4f7f\u7528go\u8bed\u8a00\u7684\u53cd\u53d1\u5c04\uff08reflect\uff09\u5e93\u5904\u7406\u6307\u9488\u5bf9\u8c61\u65f6\uff0c\u8c03\u7528elem\u65b9\u6cd5\u83b7\u53d6\u7684\u5185\u5b58\u5730\u5740\u542b\u4e49\u5982\u4e0b\uff1a<\/p>\n<p>\u5bf9\u4e8e\u6307\u9488\u5bf9\u8c61\uff0c\u7b2c\u4e00\u4e2aelem()\u76f8\u5f53\u4e8e\u5bf9\u6307\u9488\u8fdb\u884c\u89e3\u5f15\u7528\uff0c\u83b7\u53d6\u6307\u9488\u6240\u6307\u5411\u7684\u5b9e\u9645\u503c\u3002<\/p>\n<p>\u5728\u95ee\u9898\u63d0\u4f9b\u7684\u4ee3\u7801\u4e2d\uff1a<\/p>\n<pre>reflect.valueof(&amp;a).elem()<\/pre>\n<p>\u8fd9\u5c06\u8fd4\u56de\u6307\u9488\u53d8\u91cfa\u6240\u6307\u5411\u7684\u503c\u7684reflect.value\uff0c\u800ca\u672c\u8eab\u662f\u4e00\u4e2a\u6307\u9488\uff0c\u6307\u5411\u53d8\u91cfb\u3002\u56e0\u6b64\uff0c\u6b64\u5904\u83b7\u53d6\u7684\u5185\u5b58\u5730\u57400xc00003a1f0\u662f\u53d8\u91cfb\u7684\u5730\u5740\u3002<\/p>\n<p>\u8fdb\u4e00\u6b65\u8c03\u7528elem()\u65b9\u6cd5\uff1a<\/p>\n<pre>reflect.ValueOf(&amp;a).Elem().Elem()<\/pre>\n<p>\u8fd9\u5c06\u8fd4\u56de\u53d8\u91cfb\u7684reflect.value\uff0c\u5e76\u5bf9\u5176\u5b9e\u9645\u503c\u8fdb\u884c\u89e3\u5f15\u7528\uff0c\u8fd4\u56deb\u672c\u8eab\u7684\u5185\u5b58\u5730\u5740\u3002\u56e0\u6b64\uff0c\u6b64\u5904\u83b7\u53d6\u7684\u5185\u5b58\u5730\u5740{0}\u662f\u53d8\u91cfb\u7684\u5b9e\u9645\u503c\u5730\u5740\u3002<\/p>\n<p>\u603b\u4e4b\uff0c\u5728\u64cd\u4f5c\u6307\u9488\u5bf9\u8c61\u65f6\uff0celem\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u6307\u5411\u6307\u9488\u6240\u6307\u5411\u7684\u5b9e\u9645\u503c\uff0c\u800c\u7b2c\u4e00\u4e2aelem()\u64cd\u4f5c\u76f8\u5f53\u4e8e\u6307\u9488\u89e3\u5f15\u7528\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301GOLANG\uff01\u66f4\u591a\u5173\u4e8eGOLANG\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u4e3a\u4ec0\u4e48 MDM \u5f88\u91cd\u8981\uff1a\u597d\u5904\u548c\u5546\u4e1a\u4ef7\u503c\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f18\u5316\u89e3\u6790\u540e\u7aef\u6570\u636e\u5e76\u8d4b\u503c\u7ed9 HTML \u9875\u9762\u6570\u636e\u6a21\u578b\u7684\u4ee3\u7801\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u524dGOLANG\u4e0a\u5df2\u7ecf\u6709\u5f88\u591a\u5173\u4e8e&#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-206200","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206200","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=206200"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206200\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}