{"id":208102,"date":"2025-07-08T08:31:20","date_gmt":"2025-07-08T00:31:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208102\/"},"modified":"2025-07-08T08:31:20","modified_gmt":"2025-07-08T00:31:20","slug":"%e5%b0%86%e6%95%b0%e7%bb%84%e6%8c%87%e9%92%88%e4%bc%a0%e9%80%92%e7%bb%99%e9%9c%80%e8%a6%81%e7%b1%bb%e5%9e%8b%e6%8e%a5%e5%8f%a3%e7%9a%84%e5%87%bd%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208102\/","title":{"rendered":"\u5c06\u6570\u7ec4\u6307\u9488\u4f20\u9012\u7ed9\u9700\u8981\u7c7b\u578b\u63a5\u53e3\u7684\u51fd\u6570"},"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>\u5c06\u6570\u7ec4\u6307\u9488\u4f20\u9012\u7ed9\u9700\u8981\u7c7b\u578b\u63a5\u53e3\u7684\u51fd\u6570<\/span><\/p>\n<p><span>\u6765\u6e90\uff1astackoverflow<\/span><br \/>\n<span>2024-04-28 23:27:38<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u201c\u7eb5\u6709\u75be\u98ce\u6765\uff0c\u4eba\u751f\u4e0d\u8a00\u5f03\u201d\uff0c\u8fd9\u53e5\u8bdd\u9001\u7ed9\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u7684\u670b\u53cb\u4eec\uff0c\u4e5f\u5e0c\u671b\u5728\u9605\u8bfb\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5c06\u6570\u7ec4\u6307\u9488\u4f20\u9012\u7ed9\u9700\u8981\u7c7b\u578b\u63a5\u53e3\u7684\u51fd\u6570\u300b<\/span>\u540e\uff0c\u80fd\u591f\u771f\u7684\u5e2e\u52a9\u5230\u5927\u5bb6\u3002\u6211\u4e5f\u4f1a\u5728\u540e\u7eed\u7684\u6587\u7ae0\u4e2d\uff0c\u9646\u7eed\u66f4\u65b0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">Golang<\/span>\u76f8\u5173\u7684\u6280\u672f\u6587\u7ae0\uff0c\u6709\u597d\u7684\u5efa\u8bae\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u975e\u5e38\u611f\u8c22\uff01<\/p>\n<p> \u95ee\u9898\u5185\u5bb9<br \/>\n <\/p>\n<p>golang \u4e66\u4e2d\u7684\u4e00\u4e2a\u793a\u4f8b\u663e\u793a\u4e86\u4e00\u4e2a\u6307\u5411\u6570\u7ec4\u7684\u6307\u9488\u901a\u8fc7\u5f15\u7528\u4f20\u9012\u5230\u51fd\u6570\u4e2d\uff1a<\/p>\n<pre>package main\n\nimport \"fmt\"\n\nfunc reclassify(planets *[]string) {\n    *planets = (*planets)[0:8]\n}\n\n\nfunc main() {\n    planets := []string{\n        \"mercury\", \"venus\", \"earth\", \"mars\", \"jupiter\",\n        \"saturn\", \"uranus\", \"neptune\", \"pluto\",\n    }\n    reclassify(&amp;planets)\n    fmt.println(planets)\n}<\/pre>\n<p>\u6211\u5c1d\u8bd5\u7528\u63a5\u53e3\u66ff\u6362 reclassify() \u7684 *[]string \u53c2\u6570\uff1a<\/p>\n<pre>func reclassify(planets interface{}) {\n    *planets = planets.(*[]string)[0:8]\n}<\/pre>\n<p>\u4f46\u662f\u6211\u6536\u5230\u8fd9\u4e9b\u9519\u8bef\uff1a<\/p>\n<pre>.\/test.go:10:2: invalid indirect of planets (type interface {})\n.\/test.go:10:32: cannot slice planets.(*[]string) (type *[]string)<\/pre>\n<p>\u6211\u4e4b\u524d\u66fe\u4f7f\u7528\u8fc7\u8be5\u63a5\u53e3\u5c06\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\u4f20\u9012\u7ed9\u7ed9\u5b9a\u7684\u51fd\u6570\u3002\u662f\u5426\u53ef\u4ee5\u4ee5\u7c7b\u4f3c\u7684\u65b9\u5f0f\u5bf9\u6b64\u793a\u4f8b\u8fdb\u884c\u64cd\u4f5c\uff1f<\/p>\n<p>\u6211\u53ef\u4ee5\u770b\u5230\u6211\u7684\u7248\u672c\u7684 *planets \u53d8\u91cf\u6ca1\u6709\u610f\u4e49\uff0c\u4f46\u6211\u4e0d\u786e\u5b9a\u5c06\u5176\u66f4\u6539\u4e3a\u4ec0\u4e48\uff08\u5982\u679c\u6709\u7684\u8bdd\uff09\u3002<\/p>\n<p> <\/p>\n<h2>\u89e3\u51b3\u65b9\u6848<\/h2>\n<p> <\/p>\n<p>\u6211\u5efa\u8bae\u4f7f\u7528\u7c7b\u578b\u65ad\u8a00\u6765\u786e\u5b9a\u7c7b\u578b\u5e76\u66f4\u65b0\u5b83\u3002 golang\u4e2d\u7684<code>interface<\/code>\u53ea\u662f\u4e00\u4e2a\u63a5\u53e3\u3002<\/p>\n<pre>func reclassify(planets interface{}) {\n    switch v := planets.(type) {\n        case *[]string:\n            fmt.Println(\"Slice string:\",*v)\n            *v = (*v)[0:8]\n        default:\n            fmt.Println(\"Uknown\")\n    }\n}<\/pre>\n<p>\u672c\u7bc7\u5173\u4e8e\u300a\u5c06\u6570\u7ec4\u6307\u9488\u4f20\u9012\u7ed9\u9700\u8981\u7c7b\u578b\u63a5\u53e3\u7684\u51fd\u6570\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\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-208102","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208102","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=208102"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208102\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}