{"id":207080,"date":"2025-07-08T09:32:39","date_gmt":"2025-07-08T01:32:39","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207080\/"},"modified":"2025-07-08T09:32:39","modified_gmt":"2025-07-08T01:32:39","slug":"%e6%97%a0%e6%b3%95%e5%b0%86%e7%bb%93%e6%9e%84%e6%8c%87%e9%92%88%e5%88%86%e9%85%8d%e7%bb%99%e6%8e%a5%e5%8f%a3%e6%8c%87%e9%92%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207080\/","title":{"rendered":"\u65e0\u6cd5\u5c06\u7ed3\u6784\u6307\u9488\u5206\u914d\u7ed9\u63a5\u53e3\u6307\u9488"},"content":{"rendered":"<p><b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>&gt;<\/span> <span>\u65e0\u6cd5\u5c06\u7ed3\u6784\u6307\u9488\u5206\u914d\u7ed9\u63a5\u53e3\u6307\u9488<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-19 21:54:26<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u65e0\u6cd5\u5c06\u7ed3\u6784\u6307\u9488\u5206\u914d\u7ed9\u63a5\u53e3\u6307\u9488\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>\u7ed3\u6784\u4f53<code>dog<\/code>\u5b9e\u73b0\u4e86\u63a5\u53e3<code>animal<\/code>\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u4e3a\u4ec0\u4e48<code>*dos<\/code>\u4e0d\u80fd\u8d4b\u503c\u7ed9<code>*animal<\/code>\uff1f<\/p>\n<pre>type animal interface {\n    run()\n}\n\ntype dog struct {\n    name string\n}\n\nfunc (d *dog) run() {\n    fmt.println( d.name , \" is running\")\n}\n\nfunc main(){\n    var d *dog\n    var a *animal\n\n    d = new(dog)\n    d.run()\n    a = d   \/\/errors here\n}<\/pre>\n<p>go \u901a\u77e5\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n<pre>Cannot use 'd' (type *Dog) as type *Animal in assignment<\/pre>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u5177\u6709\u63a5\u53e3\u7c7b\u578b\u7684\u53d8\u91cf\u5df2\u7ecf\u662f\u6307\u9488\uff1b\u60a8\u4e0d\u9700\u8981\u5c06\u5176\u58f0\u660e\u4e3a\u6307\u5411\u63a5\u53e3\u7684\u6307\u9488\u3002\u53ea\u9700\u6267\u884c <code>var a Animal<\/code> \u5373\u53ef\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u65e0\u6cd5\u5c06\u7ed3\u6784\u6307\u9488\u5206\u914d\u7ed9\u63a5\u53e3\u6307\u9488\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03Golang\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5f53\u524d\u4f4d\u7f6e\uff1a &gt; &gt; &#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-207080","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207080","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=207080"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207080\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207080"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207080"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207080"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}