{"id":44824,"date":"2023-06-06T14:55:46","date_gmt":"2023-12-22T01:53:14","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/"},"modified":"2024-04-30T07:35:58","modified_gmt":"2024-04-29T23:35:58","slug":"44824-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/","title":{"rendered":""},"content":{"rendered":"<h2>\u6982\u8981<\/h2>\n<p>\u300c\u51e6\u7406\u304c\u901f\u3044\u300d\u300c\u4e26\u884c\u51e6\u7406\u300d\u304c\u5f97\u610f\u3068\u3044\u3046\u3053\u3068\u304b\u3089\u3001<br \/>\n\u4eca\u5f8c\u5927\u898f\u6a21web\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3067\u91cd\u5b9d\u3055\u308c\u308b\u3068\u601d\u3044\u307e\u3057\u305f\u306e\u3067\u3001<br \/>\n\u5b66\u7fd2\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001\u300cFor\u300d\u3084\u300cif\u300d\u3068\u3044\u3063\u305f\u3068\u3053\u308d\u3092\u307f\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u53c2\u8003\u30b5\u30a4\u30c8<\/h2>\n<p>\u4ee5\u4e0b\u3092\u5b9f\u65bd\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>Welcome to a tour of Go<\/p>\n<h2>\u74b0\u5883<\/h2>\n<p>GoogleChrome<br \/>\n\u203b\u30d6\u30e9\u30a6\u30b6\u64cd\u4f5c\u3060\u3051\u3067\u5b66\u7fd2\u3067\u304d\u308b\u305f\u3081\u3001\u3000\u30a8\u30c7\u30a3\u30bf\u3092\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002<br \/>\n\u203b\u79c1\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u306bCentOS8\u74b0\u5883\u3092\u7528\u610f\u3057\u3066\u3001\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u884c\u3044\u307e\u3059\u3002<br \/>\n\u203bGo\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806\u3067\u3059\u3002\u3088\u308d\u3057\u3051\u308c\u3070\u3001\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002<br \/>\nCentOS8\u3078\u306eGo\u8a00\u8a9e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u624b\u9806<\/p>\n<h2>For\u6587<\/h2>\n<ul class=\"post-ul\">\u66f8\u304d\u65b9<\/ul>\n<p>for\u30eb\u30fc\u30d7\u306f\u30bb\u30df\u30b3\u30ed\u30f3 ; \u30673\u3064\u306e\u90e8\u5206\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u3002<\/p>\n<p>\u30fb\u521d\u671f\u5316\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8: \u6700\u521d\u306e\u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3(\u7e70\u308a\u8fd4\u3057)\u306e\u524d\u306b\u521d\u671f\u5316\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002<br \/>\n\u30fb\u6761\u4ef6\u5f0f: \u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u6bce\u306b\u8a55\u4fa1\u3055\u308c\u308b\u3002<br \/>\n\u30fb\u5f8c\u51e6\u7406\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8: \u30a4\u30c6\u30ec\u30fc\u30b7\u30e7\u30f3\u6bce\u306e\u6700\u5f8c\u306b\u5b9f\u884c\u3055\u308c\u308b\u3002<br \/>\n\u30fb\u521d\u671f\u5316\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001\u77ed\u3044\u5909\u6570\u5ba3\u8a00\u306b\u3088\u304f\u5229\u7528\u3055\u308c\u308b\u3002<br \/>\n\u203b\u305d\u306e\u5909\u6570\u306f for \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306e\u30b9\u30b3\u30fc\u30d7\u5185\u3067\u306e\u307f\u6709\u52b9\u3002<\/p>\n<p>\u203b\u4ed6\u306e\u8a00\u8a9e\u3001C\u8a00\u8a9e\u3084Java\u3001JavaScript\u306efor \u30eb\u30fc\u30d7\u3068\u306f\u7570\u306a\u308a\u3001<br \/>\nfor \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306e3\u3064\u306e\u90e8\u5206\u3092\u62ec\u308b\u62ec\u5f27 ( ) \u306f\u306a\u3044\u3002<br \/>\n\u3057\u304b\u3057\u3001\u4e2d\u62ec\u5f27 { } \u306f\u5e38\u306b\u5fc5\u8981\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">sum<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">sum<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">i<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">sum<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">for<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c\u7d50\u679c<\/span>\r\n<span class=\"m\">45<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">For \u7d9a\u304d<\/ul>\n<p>\u521d\u671f\u5316\u3068\u5f8c\u51e6\u7406\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306e\u8a18\u8ff0\u306f\u4efb\u610f\u3067\u3042\u308b\u3002<br \/>\n\u203bfor.go\u30d5\u30a1\u30a4\u30eb\u306e\u4e2d\u8eab\u3092\u4ee5\u4e0b\u306b\u66f8\u304d\u63db\u3048\u308b<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">sum<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">1<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"p\">;<\/span> <span class=\"n\">sum<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span><span class=\"p\">;<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">sum<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">sum<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">sum<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">for<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c\u7d50\u679c<\/span>\r\n<span class=\"m\">16<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">For \u7d9a\u304d while\u306e\u4ee3\u308f\u308a\u306bFor\u3092\u4f7f\u3046<\/ul>\n<p>\u30bb\u30df\u30b3\u30ed\u30f3(;)\u3082\u7701\u7565\u53ef\u80fd\u3002<br \/>\nC\u8a00\u8a9e\u306a\u3069\u306b\u3042\u308b while \u306f\u3001Go\u3067\u306ffor\u3060\u3051\u3092\u4f7f\u3046\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">sum<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">1<\/span>\r\n        <span class=\"c\">\/\/10\u306e\u5f8c\u308d\u306e;\u3092\u7701\u7565\u3057\u3066\u3044\u308b<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">sum<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">sum<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">sum<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">sum<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">for<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c\u7d50\u679c<\/span>\r\n<span class=\"m\">16<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\u7121\u9650\u30eb\u30fc\u30d7<\/ul>\n<p>for\u306e\u30eb\u30fc\u30d7\u6761\u4ef6\u3092\u7701\u7565\u3059\u308c\u3070\u7121\u9650\u30eb\u30fc\u30d7\u304c\u53ef\u80fd\u3068\u306a\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">1<\/span>\r\n    <span class=\"k\">for<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">i<\/span> <span class=\"o\">+=<\/span> <span class=\"n\">i<\/span>\r\n        <span class=\"p\">}<\/span><span class=\"k\">else<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"k\">break<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">for<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c\u7d50\u679c<\/span>\r\n<span class=\"m\">2<\/span>\r\n<span class=\"m\">4<\/span>\r\n<span class=\"m\">8<\/span>\r\n<span class=\"m\">16<\/span>\r\n<\/code><\/pre>\n<h2>If\u6587<\/h2>\n<p>if\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001for\u30eb\u30fc\u30d7\u3068\u540c\u69d8\u306b\u3001<br \/>\n\u62ec\u5f27 ( ) \u306f\u4e0d\u8981\u3067\u3001\u4e2d\u62ec\u5f27 { } \u306f\u5fc5\u8981\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"fmt\"<\/span>\r\n    <span class=\"s\">\"math\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"kt\">float64<\/span><span class=\"p\">)<\/span> <span class=\"kt\">string<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">x<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">0<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"o\">-<\/span><span class=\"n\">x<\/span><span class=\"p\">)<\/span> <span class=\"o\">+<\/span> <span class=\"s\">\"i\"<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Sprint<\/span><span class=\"p\">(<\/span><span class=\"n\">math<\/span><span class=\"o\">.<\/span><span class=\"n\">Sqrt<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/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>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"m\">2<\/span><span class=\"p\">),<\/span> <span class=\"n\">sqrt<\/span><span class=\"p\">(<\/span><span class=\"o\">-<\/span><span class=\"m\">4<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">if<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c\u7d50\u679c<\/span>\r\n<span class=\"m\">1.4142135623730951<\/span> <span class=\"m\">2i<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">If\u5185\u3067\u5ba3\u8a00\u3057\u305f\u5909\u6570<\/ul>\n<p>\u4e0a\u8a18\u306f\u3001else\u30d6\u30ed\u30c3\u30af\u5185\u3067\u3082\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n<h2>Switch<\/h2>\n<p>switch\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306fif-else\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u77ed\u304f\u66f8\u304f\u65b9\u6cd5\u3002<\/p>\n<p>Go\u3067\u306f\u9078\u629e\u3055\u308c\u305fcase\u3060\u3051\u3092\u5b9f\u884c\u3057\u3066\u305d\u308c\u306b\u7d9a\u304f\u5168\u3066\u306ecase\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002<br \/>\n\u3053\u308c\u3089\u306e\u8a00\u8a9e\u306e\u5404case\u306e\u6700\u5f8c\u306b\u5fc5\u8981\u306abreak\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u304cGo\u3067\u306f\u81ea\u52d5\u7684\u306b\u63d0\u4f9b\u3055\u308c\u308b\u305f\u3081\u3002<br \/>\n\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u9055\u3044\u306fGo\u306eswitch\u306ecase\u306f\u5b9a\u6570\u3067\u3042\u308b\u5fc5\u8981\u306f\u306a\u304f\u3001<br \/>\n\u95a2\u4fc2\u3059\u308b\u5024\u306f\u6574\u6570\u3067\u3042\u308b\u5fc5\u8981\u306f\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"fmt\"<\/span>\r\n    <span class=\"s\">\"runtime\"<\/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>\r\n\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Print<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Go runs on \"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">switch<\/span> <span class=\"n\">os<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">runtime<\/span><span class=\"o\">.<\/span><span class=\"n\">GOOS<\/span><span class=\"p\">;<\/span> <span class=\"n\">os<\/span><span class=\"p\">{<\/span>\r\n\r\n    <span class=\"k\">case<\/span> <span class=\"s\">\"darwin\"<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"OS X.\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"s\">\"linux\"<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Linux.\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%s.<\/span><span class=\"se\">\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">os<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">switch<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">\u6761\u4ef6\u306a\u3057\u306eSwitch<\/ul>\n<p>\u6761\u4ef6\u306e\u306a\u3044switch\u306f\u3001switch true \u3068\u66f8\u304f\u3053\u3068\u3068\u540c\u3058\u306b\u610f\u5473\u5408\u3044\u3067\u3059\u3002<br \/>\n\u3053\u306eswitch\u306e\u69cb\u9020\u306f\u3001\u9577\u304f\u306a\u308a\u304c\u3061\u306a&#8221;if-then-else&#8221;\u306e\u3064\u306a\u304c\u308a\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"fmt\"<\/span>\r\n    <span class=\"s\">\"time\"<\/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>\r\n\r\n    <span class=\"n\">t<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Now<\/span><span class=\"p\">()<\/span>\r\n\r\n    <span class=\"k\">switch<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Hour<\/span><span class=\"p\">()<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">12<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Good morning!\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">Hour<\/span><span class=\"p\">()<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">17<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Print<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Good afternoon\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Good evening.\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">switch<\/span><span class=\"o\">-<\/span><span class=\"n\">with<\/span><span class=\"o\">-<\/span><span class=\"n\">no<\/span><span class=\"o\">-<\/span><span class=\"n\">condition<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span> \r\n<\/code><\/pre>\n<h2>Defer<\/h2>\n<p>defer\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001 defer \u3078\u6e21\u3057\u305f\u95a2\u6570\u306e\u5b9f\u884c\u3092\u3001<br \/>\n\u547c\u3073\u51fa\u3057\u5143\u306e\u95a2\u6570\u306e\u7d42\u308f\u308a(return\u3059\u308b)\u307e\u3067\u9045\u5ef6\u3055\u305b\u308b\u3082\u306e\u3002<\/p>\n<p>defer\u3078\u6e21\u3057\u305f\u95a2\u6570\u306e\u5f15\u6570\u306f\u3001\u3059\u3050\u306b\u8a55\u4fa1\u3055\u308c\u307e\u3059\u304c\u3001<br \/>\n\u305d\u306e\u95a2\u6570\u81ea\u4f53\u306f\u547c\u3073\u51fa\u3057\u5143\u306e\u95a2\u6570\u304creturn\u3059\u308b\u307e\u3067\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"World\"<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Hello\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">defer<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u7d50\u679c<\/span>\r\n<span class=\"n\">Hello<\/span>\r\n<span class=\"n\">World<\/span>\r\n<\/code><\/pre>\n<ul class=\"post-ul\">defer\u3092\u8907\u6570\u4f7f\u7528\u3057\u305f\u5834\u5408<\/ul>\n<p>defer \u3078\u6e21\u3057\u305f\u95a2\u6570\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001<br \/>\n\u305d\u306e\u547c\u3073\u51fa\u3057\u306f\u30b9\u30bf\u30c3\u30af( stack )\u3055\u308c\u308b\u3002<br \/>\n\u547c\u3073\u51fa\u3057\u5143\u306e\u95a2\u6570\u304creturn\u3059\u308b\u3068\u304d\u3001<br \/>\ndefer \u3078\u6e21\u3057\u305f\u95a2\u6570\u306f LIFO(last-in-first-out) \u306e\u9806\u756a\u3067\u5b9f\u884c\u3055\u308c\u308b\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"counting\"<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">defer<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"done\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/\u5b9f\u884c<\/span>\r\n<span class=\"k\">go<\/span> <span class=\"n\">run<\/span> <span class=\"k\">defer<\/span><span class=\"o\">-<\/span><span class=\"n\">multi<\/span><span class=\"o\">.<\/span><span class=\"k\">go<\/span>\r\n\r\n<span class=\"c\">\/\/\u7d50\u679c<\/span>\r\n<span class=\"n\">counting<\/span>\r\n<span class=\"n\">done<\/span>\r\n<span class=\"m\">9<\/span>\r\n<span class=\"m\">8<\/span>\r\n<span class=\"m\">7<\/span>\r\n<span class=\"m\">6<\/span>\r\n<span class=\"m\">5<\/span>\r\n<span class=\"m\">4<\/span>\r\n<span class=\"m\">3<\/span>\r\n<span class=\"m\">2<\/span>\r\n<span class=\"m\">1<\/span>\r\n<span class=\"m\">0<\/span>\r\n<\/code><\/pre>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306f\u3001\u300cFor\u300d\u300cIf\u300d\u306a\u3069\u307f\u3066\u3044\u304d\u307e\u3057\u305f\u3002<br \/>\n\u6b21\u56de\u306f\u3001\u30dd\u30a4\u30f3\u30bf\u3092\u898b\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 \u300c\u51e6\u7406\u304c\u901f\u3044\u300d\u300c\u4e26\u884c\u51e6\u7406\u300d\u304c\u5f97\u610f\u3068\u3044\u3046\u3053\u3068\u304b\u3089\u3001 \u4eca\u5f8c\u5927\u898f\u6a21web\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3067\u91cd\u5b9d\u3055\u308c\u308b\u3068\u601d\u3044\u307e\u3057\u305f\u306e [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44824","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>- 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\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u6982\u8981 \u300c\u51e6\u7406\u304c\u901f\u3044\u300d\u300c\u4e26\u884c\u51e6\u7406\u300d\u304c\u5f97\u610f\u3068\u3044\u3046\u3053\u3068\u304b\u3089\u3001 \u4eca\u5f8c\u5927\u898f\u6a21web\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u3067\u91cd\u5b9d\u3055\u308c\u308b\u3068\u601d\u3044\u307e\u3057\u305f\u306e [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-22T01:53:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-29T23:35:58+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/\",\"name\":\"- Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-12-22T01:53:14+00:00\",\"dateModified\":\"2024-04-29T23:35:58+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/44824-2\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon 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