{"id":44025,"date":"2023-02-12T22:22:59","date_gmt":"2024-02-24T14:08:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/golang%e7%9a%84%e6%8e%a5%e5%8f%a3\/"},"modified":"2024-04-29T14:20:29","modified_gmt":"2024-04-29T06:20:29","slug":"golang%e7%9a%84%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/golang%e7%9a%84%e6%8e%a5%e5%8f%a3\/","title":{"rendered":"Golang\u7684\u63a5\u53e3"},"content":{"rendered":"<h1>\u6211\u4e0d\u592a\u61c2\u754c\u9762\u3002<\/h1>\n<p>\u5982\u679c\u5728\u82f1\u548c\u8bcd\u5178\u4e2d\u67e5\u627e&#8221;interface&#8221;\uff0c\u4f1a\u51fa\u73b0&#8221;\u5883\u754c\u9762&#8221;\u3001&#8221;\u63a5\u70b9&#8221;\u3001&#8221;\u5171\u540c\u7684\u95ee\u9898&#8221;\u7b49\u89e3\u91ca\u3002<br \/>\n\u6839\u636e\u8ba1\u7b97\u673a\u672f\u8bed\u8bcd\u5178\u7684\u89e3\u91ca\uff0c<\/p>\n<blockquote><p>\u5728\u652f\u6301\u63a5\u53e3\u548c\u7ee7\u627f\u7684\u5bf9\u8c61\u7cfb\u7edf\u4e2d\uff0c\u63a5\u53e3\u662f\u5bf9\u4e0d\u5305\u542b\u6709\u5173\u5b9e\u73b0\u7684\u65b9\u6cd5\u7684\u96c6\u5408\u8fdb\u884c\u58f0\u660e\u7684\u3002\u63a5\u53e3\u901a\u5e38\u53ef\u4ee5\u4ece\u5176\u4ed6\u63a5\u53e3\u7ee7\u627f\u3002<\/p><\/blockquote>\n<p>\u4ece\u8fd9\u91cc\u5f00\u59cb\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Go\u7684\u4ee3\u7801\u6765\u8fdb\u4e00\u6b65\u7406\u89e3\u63a5\u53e3\u3002<\/p>\n<h2>\u53ea\u8981\u6ee1\u8db3\u63a5\u53e3\u7684\u65b9\u6cd5\uff0c\u5373\u4f7f\u662f\u4e0d\u540c\u7684\u7ed3\u6784\u4f53\u4e5f\u53ef\u4ee5\u8d4b\u503c\u7ed9\u63a5\u53e3\u3002<\/h2>\n<h3>1. \u8bf7\u7528\u4e2d\u6587\u5c06\u4ee5\u4e0b\u5185\u5bb9\u6539\u5199\u6210\u540c\u4e49\u53e5\uff1a<\/h3>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Hoge<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Foo<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">y<\/span> <span class=\"kt\">int<\/span>\r\n    <span class=\"n\">z<\/span> <span class=\"kt\">bool<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u7684\u4ee3\u7801\u4e2d\uff0cHoge \u63a5\u53e3\u662f\u5177\u6709 FuncA \u548c FuncB \u51fd\u6570\u7684\u96c6\u5408\u4f53 = \u65b9\u6cd5\u7684\u96c6\u5408\u4f53\u3002<br \/>\n\u5b9e\u73b0\u90e8\u5206\u7531 Foo \u8d1f\u8d23\u3002<br \/>\n\u5b9e\u73b0\u8005\uff1aFoo<br \/>\n\u63a5\u53e3\uff1aHoge<br \/>\n\u9996\u5148\uff0c\u5728\u5b9e\u73b0\u90e8\u5206\u7684 Foo \u4e2d\u5b9a\u4e49\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"o\">*<\/span><span class=\"n\">Foo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"o\">*<\/span><span class=\"n\">Foo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u7ed3\u6784\u4f53Foo\u4e2d\u5b9e\u73b0\u4e0eHoge\u63a5\u53e3\u5177\u6709\u76f8\u540c\u540d\u79f0\u7684\u65b9\u6cd5\u3002<br \/>\n\u8fd9\u91cc\u4ea7\u751f\u4e86Hoge\u548cFoo\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<br \/>\n\u4ece\u8fd9\u91cc\u5f00\u59cb\u8003\u8651\u63a5\u53e3\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Hoge<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Foo<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">x<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">y<\/span> <span class=\"kt\">int<\/span>\r\n    <span class=\"n\">z<\/span> <span class=\"kt\">bool<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"o\">*<\/span><span class=\"n\">Foo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"o\">*<\/span><span class=\"n\">Foo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"n\">Hoge<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">hoge<\/span> <span class=\"n\">Hoge<\/span>\r\n    <span class=\"n\">hoge<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span> <span class=\"c\">\/\/ \u578b\u306fHoge<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">hoge<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">foo<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span> <span class=\"c\">\/\/ \u578b\u306fFoo<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">foo<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u6211\u6dfb\u52a0\u4e86\u4e00\u4e2a\u540d\u4e3a&#8221;hogehoge&#8221;\u7684\u65b0\u51fd\u6570\u3002&#8221;hogehoge&#8221;\u51fd\u6570\u63a5\u53d7\u7c7b\u578b\u4e3aHoge\u7684\u53c2\u6570\u3002<br \/>\n\u5728main\u51fd\u6570\u4e2d\uff0c\u6211\u51c6\u5907\u4e86\u4e24\u4e2a\u53d8\u91cfhoge\u548cfoo\uff0c\u5e76\u5c06\u5b83\u4eec\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9\u51fd\u6570&#8221;hogehoge&#8221;\u3002<br \/>\n\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u867d\u7136\u53d8\u91cfhoge\u548c\u53d8\u91cffoo\u5177\u6709\u4e0d\u540c\u7684\u7c7b\u578b\uff0c\u4f46\u90fd\u4e0d\u4f1a\u5f15\u53d1\u9519\u8bef\u3002\u63a5\u4e0b\u6765\u6211\u8fd8\u4f1a\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u7ed3\u6784\u4f53\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Hoge<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ foo struct<\/span>\r\n<span class=\"c\">\/\/ foo method<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">HogeFoo<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">a<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">b<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">c<\/span> <span class=\"kt\">string<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">h<\/span> <span class=\"o\">*<\/span><span class=\"n\">HogeFoo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">h<\/span> <span class=\"o\">*<\/span><span class=\"n\">HogeFoo<\/span><span class=\"p\">)<\/span> <span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span> <span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"n\">Hoge<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">hoge<\/span> <span class=\"n\">Hoge<\/span>\r\n    <span class=\"n\">hoge<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">hoge<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">foo<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">foo<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">hogefoo<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">HogeFoo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">hogefoo<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53d8\u91cfhogefoo\u62e5\u6709\u65b0\u6dfb\u52a0\u7684\u7ed3\u6784\u4f53HogeFoo\uff0c\u5e76\u6b63\u786e\u5730\u4f5c\u4e3a\u51fd\u6570hogehoge\u7684\u53c2\u6570\u4f20\u5165\u3002\u6ca1\u6709\u53d1\u751f\u9519\u8bef\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5373\u4f7f\u53d8\u91cf\u5177\u6709\u4e0d\u540c\u7684\u7ed3\u6784\u4f53\uff0c\u53ea\u8981\u5b83\u4eec\u90fd\u6ee1\u8db3\u540c\u4e00\u4e2a\u63a5\u53e3\uff0c\u5c31\u53ef\u4ee5\u5c06\u5b83\u4eec\u90fd\u8d4b\u503c\u7ed9\u540c\u4e00\u4e2a\u63a5\u53e3\u3002<\/p>\n<h2>\u53ef\u4ee5\u5c06\u7ed3\u6784\u4f53\u7684\u5b9e\u73b0\u548c\u4f7f\u7528\u5206\u5f00\u6765\u8003\u8651\u3002<\/h2>\n<p>\u9996\u5148\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u754c\u9762\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"c\">\/\/ Hoge interface<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Half<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ foo struct<\/span>\r\n<span class=\"c\">\/\/ foo method<\/span>\r\n\r\n<span class=\"c\">\/\/ HogeFoo struct<\/span>\r\n<span class=\"c\">\/\/ HogeFoo method<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"n\">Hoge<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"n\">d<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncB<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">half<\/span><span class=\"p\">(<\/span><span class=\"n\">ho<\/span> <span class=\"n\">Half<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ho<\/span><span class=\"o\">.<\/span><span class=\"n\">FuncA<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">hoge<\/span> <span class=\"n\">Hoge<\/span>\r\n    <span class=\"n\">hoge<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">hogehoge<\/span><span class=\"p\">(<\/span><span class=\"n\">hoge<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">foo<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Foo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">half<\/span><span class=\"p\">(<\/span><span class=\"n\">foo<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">hogefoo<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">HogeFoo<\/span><span class=\"p\">{}<\/span>\r\n    <span class=\"n\">half<\/span><span class=\"p\">(<\/span><span class=\"n\">hogefoo<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u65b0\u6dfb\u52a0\u7684\u63a5\u53e3 Half\u53ea\u6709FuncA\uff0c\u6ca1\u6709FuncB\u3002<br \/>\n\u7ed3\u6784\u4f53Foo\u548c\u7ed3\u6784\u4f53HogeFoo\u90fd\u6ee1\u8db3Hoge\u63a5\u53e3\u548cHalf\u63a5\u53e3\u3002<br \/>\n\u51fd\u6570half\u63a5\u6536\u7c7b\u578b\u4e3aHalf\u7684\u53c2\u6570\uff0c\u4f46\u662f\u5f53\u628a\u53d8\u91cffoo\u548c\u53d8\u91cfhogefoo\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u65f6\uff0c\u53ea\u80fd\u4f7f\u7528FuncA\u3002<br \/>\n\u7531\u4e8eHalf\u63a5\u53e3\u53ea\u6709FuncA\uff0c\u8fd9\u662f\u7406\u6240\u5f53\u7136\u7684\uff0c\u4f46\u6211\u63a8\u6d4b\u8fd9\u5c31\u662f\u4f7f\u7528\u63a5\u53e3\u7684\u6709\u7528\u6027\u3002<br \/>\n\u6362\u53e5\u8bdd\u8bf4\uff0c\u901a\u8fc7\u63a5\u53e3\u53ef\u4ee5\u660e\u786e\u7ed3\u6784\u4f53\u7684\u4f7f\u7528\u65b9\u5f0f\uff0c\u5373\u4f7f\u7ed3\u6784\u4f53\u5b9e\u73b0\u4e86\u591a\u4e2a\u65b9\u6cd5\uff0c\u4f7f\u7528\u65f6\u53ea\u9700\u6307\u5b9a\u9700\u8981\u7684\u65b9\u6cd5\uff0c\u65e0\u9700\u4f9d\u8d56\u4e0d\u9700\u8981\u7684\u65b9\u6cd5\u3002<\/p>\n<h2>\u7ed3\u675f<\/h2>\n<p>\u7531\u4e8e\u5c1a\u672a\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u4f7f\u7528\uff0c\u56e0\u6b64\u6211\u65e0\u6cd5\u5b8c\u5168\u7406\u89e3\u5b83\u3002\u4f46\u662f\uff0c\u6211\u5bf9\u5b83\u7684\u4f7f\u7528\u65b9\u5f0f\u6709\u4e00\u4e9b\u6a21\u7cca\u7684\u60f3\u6cd5\u3002\u5982\u679c\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5bf9\u522b\u4eba\u6709\u6240\u5e2e\u52a9\uff0c\u6211\u4f1a\u975e\u5e38\u9ad8\u5174\u3002\u611f\u8c22\u60a8\u9605\u8bfb\u81f3\u6700\u540e\u3002<\/p>\n<h2>\u8bf7\u53c2\u8003\u4ee5\u4e0b\u7f51\u7ad9<\/h2>\n<p>Go\u8bed\u8a00\u63a5\u53e3<\/p>\n<p>Golang \u7684 interface \u662f\u4ec0\u4e48\u4e1c\u897f &#8211; \u5230\u8fbe Gopher \u4e4b\u8def \u2461<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4e0d\u592a\u61c2\u754c\u9762\u3002 \u5982\u679c\u5728\u82f1\u548c\u8bcd\u5178\u4e2d\u67e5\u627e&#8221;interface&#8221;\uff0c\u4f1a\u51fa\u73b0&#8221;\u5883\u754c\u9762 [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44025","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Golang\u7684\u63a5\u53e3 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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