{"id":206672,"date":"2025-06-12T09:35:47","date_gmt":"2025-06-12T01:35:47","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206672\/"},"modified":"2025-06-12T09:35:47","modified_gmt":"2025-06-12T01:35:47","slug":"go-%e8%af%ad%e8%a8%80%e4%b8%ad-var-_-hellointer-catnil-%e8%bf%99%e8%a1%8c%e4%bb%a3%e7%a0%81%e7%9a%84%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206672\/","title":{"rendered":"Go \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241118\/1731940589673b50edef751.jpg\" class=\"aligncenter\">,<br \/>\n<strong>Go \u8bed\u8a00\u4e2d\u7684\u4e00\u4e2a\u8bed\u6cd5<\/strong>,<br \/>\n<strong>\u95ee\u9898\uff1a<\/strong>,\u5728\u4ee5\u4e0b Go \u4ee3\u7801\u4e2d\uff0c&lt;pre&gt;&lt;code&gt;var _ HelloInter = (*Cat)(nil)&lt;\/code&gt;&lt;\/pre&gt; \u8fd9\u884c\u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f,<br \/>\n<strong>\u56de\u7b54\uff1a<\/strong>,\u8fd9\u884c\u4ee3\u7801\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u5360\u4f4d\u503c\u6765\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\uff0c\u8868\u793a\u8be5\u53d8\u91cf\u4e0d\u9700\u8981\u88ab\u8bbf\u95ee\u3002\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u4e0b\u5212\u7ebf\u7ecf\u5e38\u7528\u4e8e\u4e22\u5f03\u51fd\u6570\u7684\u8fd4\u56de\u503c\u6216\u8868\u793a\u672a\u4f7f\u7528\u7684\u53d8\u91cf\u3002,\u7b49\u53f7\u540e\u9762\u7684\u8d4b\u503c\u662f\u4e00\u4e2a\u6307\u9488\u7c7b\u578b\u5f3a\u8f6c\uff0c&lt;pre&gt;&lt;code&gt;(*Cat)(nil)&lt;\/code&gt;&lt;\/pre&gt; \u5c06 nil \u8f6c\u6362\u4e3a HelloInter \u7c7b\u578b\u7684\u7a7a\u6307\u9488\u3002,\u8fd9\u884c\u4ee3\u7801\u5b9e\u9645\u4e0a\u5728\u8fd0\u884c\u65f6\u4e0d\u8d77\u4efb\u4f55\u4f5c\u7528\uff0c\u800c\u662f\u4e00\u79cd\u7f16\u8bd1\u65f6\u7684\u7c7b\u578b\u9632\u5fa1\u7b56\u7565\u3002\u5982\u679c Cat \u7c7b\u578b\u6ca1\u6709\u5b9e\u73b0 HelloInter \u63a5\u53e3\uff0c\u90a3\u4e48\u8fd9\u884c\u4ee3\u7801\u5728\u7f16\u8bd1\u65f6\u5c31\u4f1a\u62a5\u9519\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u4f60\u53ca\u65e9\u53d1\u73b0\u5b9e\u73b0\u4e2d\u7684\u95ee\u9898\uff0c\u907f\u514d\u5728\u8fd0\u884c\u65f6\u624d\u53d1\u73b0\u9519\u8bef\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 \u8bed\u8a00\u4e2d\u7684\u4e00\u4e2a\u8bed\u6cd5,\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\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>Go \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/span><\/p>\n<h1>Go \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p><span>2024-11-18 22:36:45<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d `var _ HelloInter = (*Cat)(nil)` \u8fd9\u884c\u4ee3\u7801\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241118\/1731940589673b50edef751.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Go \u8bed\u8a00\u4e2d\u7684\u4e00\u4e2a\u8bed\u6cd5<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5728\u4ee5\u4e0b Go \u4ee3\u7801\u4e2d\uff0c&lt;pre&gt;&lt;code&gt;var _ HelloInter = (*Cat)(nil)&lt;\/code&gt;&lt;\/pre&gt; \u8fd9\u884c\u4ee3\u7801\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u8fd9\u884c\u4ee3\u7801\u4f7f\u7528\u4e0b\u5212\u7ebf\u4f5c\u4e3a\u5360\u4f4d\u503c\u6765\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\uff0c\u8868\u793a\u8be5\u53d8\u91cf\u4e0d\u9700\u8981\u88ab\u8bbf\u95ee\u3002\u5728 Go \u8bed\u8a00\u4e2d\uff0c\u4e0b\u5212\u7ebf\u7ecf\u5e38\u7528\u4e8e\u4e22\u5f03\u51fd\u6570\u7684\u8fd4\u56de\u503c\u6216\u8868\u793a\u672a\u4f7f\u7528\u7684\u53d8\u91cf\u3002<\/p>\n<p>\u7b49\u53f7\u540e\u9762\u7684\u8d4b\u503c\u662f\u4e00\u4e2a\u6307\u9488\u7c7b\u578b\u5f3a\u8f6c\uff0c&lt;pre&gt;&lt;code&gt;(*Cat)(nil)&lt;\/code&gt;&lt;\/pre&gt; \u5c06 nil \u8f6c\u6362\u4e3a HelloInter \u7c7b\u578b\u7684\u7a7a\u6307\u9488\u3002<\/p>\n<p>\u8fd9\u884c\u4ee3\u7801\u5b9e\u9645\u4e0a\u5728\u8fd0\u884c\u65f6\u4e0d\u8d77\u4efb\u4f55\u4f5c\u7528\uff0c\u800c\u662f\u4e00\u79cd\u7f16\u8bd1\u65f6\u7684\u7c7b\u578b\u9632\u5fa1\u7b56\u7565\u3002\u5982\u679c Cat \u7c7b\u578b\u6ca1\u6709\u5b9e\u73b0 HelloInter \u63a5\u53e3\uff0c\u90a3\u4e48\u8fd9\u884c\u4ee3\u7801\u5728\u7f16\u8bd1\u65f6\u5c31\u4f1a\u62a5\u9519\uff0c\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u4f60\u53ca\u65e9\u53d1\u73b0\u5b9e\u73b0\u4e2d\u7684\u95ee\u9898\uff0c\u907f\u514d\u5728\u8fd0\u884c\u65f6\u624d\u53d1\u73b0\u9519\u8bef\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   Go \u8bed\u8a00\u6570\u7ec4\u6307\u9488\u53d6\u503c\u62a5\u9519\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5229\u7528 Performance \u9762\u677f\u8bc6\u522b\u963b\u585e\u6e32\u67d3\u7684\u4efb\u52a1\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0 &#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-206672","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206672","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=206672"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206672\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206672"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206672"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206672"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}