{"id":57818,"date":"2024-10-10T21:24:16","date_gmt":"2024-10-10T13:24:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57818\/"},"modified":"2024-10-10T21:24:16","modified_gmt":"2024-10-10T13:24:16","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-type-%e9%97%9c%e9%8d%b5%e5%ad%97%ef%bc%88%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57818\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00 type \u95dc\u9375\u5b57\uff08\u985e\u578b\u5225\u540d\uff09"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-type-%e9%97%9c%e9%8d%b5%e5%ad%97%ef%bc%88%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d%ef%bc%89-zOOLHPPuzQ\">GO\u6559\u7a0b: Go \u8a9e\u8a00 type \u95dc\u9375\u5b57\uff08\u985e\u578b\u5225\u540d\uff09<\/h1>\n<p>Go \u8a9e\u8a00\uff0c\u4f5c\u70ba\u4e00\u7a2e\u975c\u614b\u985e\u578b\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5f37\u5927\u7684\u7279\u6027\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f\u985e\u578b\u5225\u540d\uff08Type Alias\uff09\u3002\u985e\u578b\u5225\u540d\u5141\u8a31\u958b\u767c\u8005\u70ba\u73fe\u6709\u7684\u985e\u578b\u5275\u5efa\u65b0\u7684\u540d\u7a31\uff0c\u9019\u5728\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u7dad\u8b77\u6027\u4e0a\u5177\u6709\u91cd\u8981\u610f\u7fa9\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u4e2d\u7684 type \u95dc\u9375\u5b57\u53ca\u5176\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d%ef%bc%9f-zOOLHPPuzQ\">\u4ec0\u9ebc\u662f\u985e\u578b\u5225\u540d\uff1f<\/h2>\n<p>\u985e\u578b\u5225\u540d\u662f Go \u8a9e\u8a00\u4e2d\u7684\u4e00\u500b\u7279\u6027\uff0c\u5141\u8a31\u958b\u767c\u8005\u70ba\u5df2\u5b58\u5728\u7684\u985e\u578b\u5275\u5efa\u4e00\u500b\u65b0\u7684\u540d\u7a31\u3002\u9019\u6a23\u505a\u7684\u597d\u8655\u5728\u65bc\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u4e26\u4e14\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u4ee5\u7c21\u5316\u4ee3\u78bc\u7684\u7d50\u69cb\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-type-%e9%97%9c%e9%8d%b5%e5%ad%97%e5%89%b5%e5%bb%ba%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d-zOOLHPPuzQ\">\u5982\u4f55\u4f7f\u7528 type \u95dc\u9375\u5b57\u5275\u5efa\u985e\u578b\u5225\u540d<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u4f7f\u7528 <code>type<\/code> \u95dc\u9375\u5b57\u4f86\u5275\u5efa\u985e\u578b\u5225\u540d\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>type NewType = ExistingType<\/code><\/pre>\n<p>\u9019\u88e1\u7684 <code>NewType<\/code> \u662f\u4f60\u60f3\u8981\u5275\u5efa\u7684\u985e\u578b\u5225\u540d\uff0c\u800c <code>ExistingType<\/code> \u662f\u5df2\u5b58\u5728\u7684\u985e\u578b\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u985e\u578b\u5225\u540d\u8207\u985e\u578b\u5b9a\u7fa9\u662f\u4e0d\u540c\u7684\uff0c\u985e\u578b\u5225\u540d\u4e0d\u6703\u5275\u5efa\u65b0\u7684\u985e\u578b\uff0c\u800c\u53ea\u662f\u70ba\u73fe\u6709\u985e\u578b\u63d0\u4f9b\u4e86\u4e00\u500b\u65b0\u7684\u540d\u7a31\u3002<\/p>\n<h2 id=\"%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d%e7%9a%84%e7%a4%ba%e4%be%8b-zOOLHPPuzQ\">\u985e\u578b\u5225\u540d\u7684\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u985e\u578b\u5225\u540d\uff1a<\/p>\n<pre><code>package main\n\nimport \"fmt\"\n\n\/\/ \u5b9a\u7fa9\u4e00\u500b\u6574\u6578\u985e\u578b\ntype MyInt int\n\n\/\/ \u5275\u5efa\u4e00\u500b\u985e\u578b\u5225\u540d\ntype AliasInt = MyInt\n\nfunc main() {\n    var a MyInt = 10\n    var b AliasInt = 20\n\n    fmt.Println(\"MyInt:\", a)\n    fmt.Println(\"AliasInt:\", b)\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba <code>MyInt<\/code> \u7684\u6574\u6578\u985e\u578b\uff0c\u7136\u5f8c\u4f7f\u7528 <code>type<\/code> \u95dc\u9375\u5b57\u5275\u5efa\u4e86\u4e00\u500b\u985e\u578b\u5225\u540d <code>AliasInt<\/code>\u3002\u5728 <code>main<\/code> \u51fd\u6578\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\u9019\u5169\u500b\u985e\u578b\u53ef\u4ee5\u4e92\u63db\u4f7f\u7528\uff0c\u9019\u4f7f\u5f97\u4ee3\u78bc\u66f4\u52a0\u9748\u6d3b\u3002<\/p>\n<h2 id=\"%e9%a1%9e%e5%9e%8b%e5%88%a5%e5%90%8d%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-zOOLHPPuzQ\">\u985e\u578b\u5225\u540d\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u985e\u578b\u5225\u540d\u5728\u591a\u7a2e\u60c5\u6cc1\u4e0b\u90fd\u975e\u5e38\u6709\u7528\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u5834\u666f\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u53ef\u8b80\u6027\uff1a<\/strong>\u7576\u67d0\u500b\u985e\u578b\u7684\u540d\u7a31\u904e\u65bc\u5197\u9577\u6216\u4e0d\u6613\u7406\u89e3\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u985e\u578b\u5225\u540d\u4f86\u7c21\u5316\u540d\u7a31\u3002<\/li>\n<li><strong>\u7c21\u5316\u4ee3\u78bc\uff1a<\/strong>\u5728\u8655\u7406\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u6642\uff0c\u985e\u578b\u5225\u540d\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6e05\u6670\u5730\u8868\u9054\u610f\u5716\u3002<\/li>\n<li><strong>\u517c\u5bb9\u6027\uff1a<\/strong>\u5728\u91cd\u69cb\u4ee3\u78bc\u6642\uff0c\u985e\u578b\u5225\u540d\u53ef\u4ee5\u5e6b\u52a9\u4fdd\u6301\u820a\u4ee3\u78bc\u7684\u517c\u5bb9\u6027\uff0c\u907f\u514d\u5927\u898f\u6a21\u7684\u4ee3\u78bc\u4fee\u6539\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-zOOLHPPuzQ\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u985e\u578b\u5225\u540d\u63d0\u4f9b\u4e86\u8a31\u591a\u512a\u52e2\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4e5f\u9700\u8981\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li>\u985e\u578b\u5225\u540d\u4e0d\u6703\u5275\u5efa\u65b0\u7684\u985e\u578b\uff0c\u56e0\u6b64\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u985e\u578b\u6aa2\u67e5\u7684\u554f\u984c\u3002<\/li>\n<li>\u904e\u5ea6\u4f7f\u7528\u985e\u578b\u5225\u540d\u53ef\u80fd\u6703\u4f7f\u4ee3\u78bc\u8b8a\u5f97\u6df7\u4e82\uff0c\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-zOOLHPPuzQ\">\u7e3d\u7d50<\/h2>\n<p>Go \u8a9e\u8a00\u4e2d\u7684\u985e\u578b\u5225\u540d\u662f\u4e00\u500b\u5f37\u5927\u7684\u7279\u6027\uff0c\u80fd\u5920\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u7dad\u8b77\u6027\u3002\u901a\u904e\u4f7f\u7528 <code>type<\/code> \u95dc\u9375\u5b57\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u70ba\u73fe\u6709\u985e\u578b\u5275\u5efa\u65b0\u7684\u540d\u7a31\uff0c\u5f9e\u800c\u7c21\u5316\u4ee3\u78bc\u7d50\u69cb\u3002\u5728\u5be6\u969b\u958b\u767c\u4e2d\uff0c\u5408\u7406\u4f7f\u7528\u985e\u578b\u5225\u540d\u53ef\u4ee5\u4f7f\u4ee3\u78bc\u66f4\u52a0\u6e05\u6670\u548c\u6613\u65bc\u7406\u89e3\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u6709\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3 Go \u8a9e\u8a00\u4e2d\u7684 type \u95dc\u9375\u5b57\uff0c\u5b78\u7fd2\u5982\u4f55\u5275\u5efa\u985e\u578b\u5225\u540d\uff0c\u63d0\u5347\u4f60\u7684\u7de8\u7a0b\u6280\u80fd\u8207\u4ee3\u78bc\u53ef\u8b80\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57818","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57818","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=57818"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57818\/revisions"}],"predecessor-version":[{"id":57819,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57818\/revisions\/57819"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}