{"id":44231,"date":"2023-08-18T05:27:41","date_gmt":"2023-10-05T21:36:05","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/"},"modified":"2024-04-30T19:00:10","modified_gmt":"2024-04-30T11:00:10","slug":"%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/","title":{"rendered":"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668"},"content":{"rendered":"<h1>\u7b80\u800c\u8a00\u4e4b<\/h1>\n<p>\u7b46\u8005\u534a\u5e74\u524d\u5f00\u59cb\u81ea\u5b66Python\uff0c\u4e3a\u4e86\u66f4\u6df1\u5165\u7406\u89e3\u7f16\u7a0b\uff0c\u51b3\u5b9a\u81ea\u5df1\u52a8\u624b\u5236\u4f5c\u4e00\u4e2a\u89e3\u91ca\u5668\u3002\u9009\u62e9Go\u8bed\u8a00\u7684\u539f\u56e0\u662f\u60f3\u63a5\u89e6\u9759\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u5e76\u4e14\u89c9\u5f97Go\u8bed\u8a00\u5f88\u6d41\u884c\u3002\u672c\u6587\u5c06\u53c2\u8003\u300a\u7528Go\u521b\u5efa\u89e3\u91ca\u5668\u300b\u8fdb\u884c\u5f00\u53d1\u3002\u7531\u4e8e\u5df2\u7ecf\u5b8c\u6210\u7b2c\u4e00\u7ae0\u7684\u9605\u8bfb\uff0c\u4e0b\u9762\u6211\u5c06\u8fdb\u884c\u603b\u7ed3\u3002<\/p>\n<h1>\u7b2c\u4e00\u7ae0\uff0c\u89e3\u6790\u6587\u5b57\u548c\u53e5\u5b50<\/h1>\n<h2>\u5b57\u53e5\u89e3\u6790\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h2>\n<p>\u5c06\u6e90\u4ee3\u7801\u8f6c\u6362\u4e3a\u4ee4\u724c\u5e8f\u5217\u88ab\u79f0\u4e3a&#8221;\u8bcd\u6cd5\u5206\u6790&#8221;\u3002<\/p>\n<pre class=\"post-pre\"><code>let x = 5 + 5;\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d577537434c4406cdcb47\/6-0.png\" alt=\"\u540d\u79f0\u672a\u8a2d\u5b9a.png\" \/><\/div>\n<h2>\u89e3\u6790\u5668\u5b57\u53e5<\/h2>\n<ol>\u4ee4\u724c\u7684\u5b9a\u4e49<\/ol>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Token<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Type<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">Literal<\/span> <span class=\"kt\">string<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">const<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"n\">ILLEGAL<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"ILLEGAL\"<\/span> <span class=\"c\">\/\/ \u672a\u77e5\u306e\u6587\u5b57\u5217<\/span>\r\n    <span class=\"n\">EOF<\/span>     <span class=\"o\">=<\/span> <span class=\"s\">\"EOF\"<\/span> <span class=\"c\">\/\/ \u7d42\u308f\u308a\u3092\u793a\u3059<\/span>\r\n\r\n    <span class=\"n\">IDENT<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"IDENT\"<\/span> <span class=\"c\">\/\/ \u8b58\u5225\u5b50<\/span>\r\n    <span class=\"n\">INT<\/span>   <span class=\"o\">=<\/span> <span class=\"s\">\"INT\"<\/span> <span class=\"c\">\/\/ \u6570\u5024\u578b<\/span>\r\n\r\n    <span class=\"n\">ASSIGN<\/span>   <span class=\"o\">=<\/span> <span class=\"s\">\"=\"<\/span>\r\n    <span class=\"n\">PLUS<\/span>     <span class=\"o\">=<\/span> <span class=\"s\">\"+\"<\/span>\r\n\r\n    <span class=\"p\">[<\/span><span class=\"o\">...<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<ol>Lexer\uff08\u8bcd\u6cd5\u5206\u6790\u5668\uff09<\/ol>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">Lexer<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">input<\/span>        <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">position<\/span>     <span class=\"kt\">int<\/span> <span class=\"c\">\/\/ \u8aad\u307f\u8fbc\u3093\u3067\u308b\u6587\u5b57<\/span>\r\n    <span class=\"n\">readPosition<\/span> <span class=\"kt\">int<\/span> <span class=\"c\">\/\/ \u6b21\u306b\u8aad\u307f\u8fbc\u3080\u6587\u5b57<\/span>\r\n    <span class=\"n\">ch<\/span>           <span class=\"kt\">byte<\/span> <span class=\"c\">\/\/ \u691c\u67fb\u4e2d\u306e\u6587\u5b57<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">Lexer<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ Lexer\u306b\u5f15\u6570input\u3092\u30bb\u30c3\u30c8\u3057return<\/span>\r\n    <span class=\"n\">l<\/span> <span class=\"o\">:=<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">Lexer<\/span><span class=\"p\">{<\/span><span class=\"n\">input<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"p\">}<\/span>\r\n    <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readChar<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">l<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">l<\/span> <span class=\"o\">*<\/span><span class=\"n\">Lexer<\/span><span class=\"p\">)<\/span> <span class=\"n\">readChar<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ \u5165\u529b\u304c\u7d42\u308f\u3063\u305f\u3089ch\u30920\u306b<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readPosition<\/span> <span class=\"o\">&gt;=<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">input<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span> <span class=\"o\">=<\/span> <span class=\"m\">0<\/span>\r\n    <span class=\"c\">\/\/ \u307e\u3060\u7d42\u308f\u3063\u3066\u3044\u306a\u3044\u5834\u5408readPosition\u3092ch\u306b\u30bb\u30c3\u30c8<\/span>\r\n    <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span> <span class=\"o\">=<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">input<\/span><span class=\"p\">[<\/span><span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readPosition<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"c\">\/\/ position\u3092\u6b21\u306b\u9032\u3081\u308b<\/span>\r\n    <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">position<\/span> <span class=\"o\">=<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readPosition<\/span>\r\n    <span class=\"c\">\/\/ readpositon\u3092\u6b21\u306b\u9032\u3081\u308b<\/span>\r\n    <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readPosition<\/span> <span class=\"o\">+=<\/span> <span class=\"m\">1<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">l<\/span> <span class=\"o\">*<\/span><span class=\"n\">Lexer<\/span><span class=\"p\">)<\/span> <span class=\"n\">NextToken<\/span><span class=\"p\">()<\/span> <span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">Token<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">tok<\/span> <span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">Token<\/span>\r\n\r\n    <span class=\"c\">\/\/ \u30c8\u30fc\u30af\u30f3\u3092\u751f\u6210\u3059\u308b<\/span>\r\n    <span class=\"k\">switch<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"sc\">'='<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">tok<\/span> <span class=\"o\">=<\/span> <span class=\"n\">newToken<\/span><span class=\"p\">(<\/span><span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">ASSIGN<\/span><span class=\"p\">,<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"sc\">'+'<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">tok<\/span> <span class=\"o\">=<\/span> <span class=\"n\">newToken<\/span><span class=\"p\">(<\/span><span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">PLUS<\/span><span class=\"p\">,<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"sc\">'-'<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">tok<\/span> <span class=\"o\">=<\/span> <span class=\"n\">newToken<\/span><span class=\"p\">(<\/span><span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">MINUS<\/span><span class=\"p\">,<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">[<\/span><span class=\"o\">...<\/span><span class=\"p\">]<\/span>\r\n\r\n    <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readChar<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">tok<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">newToken<\/span><span class=\"p\">(<\/span><span class=\"n\">tokenType<\/span> <span class=\"n\">TokenType<\/span><span class=\"p\">,<\/span> <span class=\"n\">ch<\/span> <span class=\"kt\">byte<\/span><span class=\"p\">)<\/span> <span class=\"n\">Token<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">Token<\/span><span class=\"p\">{<\/span><span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">tokenType<\/span><span class=\"p\">,<\/span> <span class=\"n\">Literal<\/span><span class=\"o\">:<\/span> <span class=\"kt\">string<\/span><span class=\"p\">(<\/span><span class=\"n\">ch<\/span><span class=\"p\">)}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u73b0\u5728\u53ef\u4ee5\u751f\u6210\u4ee4\u724c\u4e86\uff0c\u4f46\u662f\u4ecd\u9700\u8981\u9010\u4e2a\u5b57\u7b26\u751f\u6210\u4ee4\u724c\u3002<\/p>\n<pre class=\"post-pre\"><code>let five = 5;\r\nlet ten = 10;\r\n\r\nlet add = fn(x, y) {\r\n    x + y;\r\n};\r\n\r\nlet result = add(five, ten):\r\n<\/code><\/pre>\n<p>\u5bf9\u4e8e\u50cf\u4e0a\u8ff0\u7684\u53e5\u5b50\u8fdb\u884c\u5206\u6790\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u95ee\u9898\u3002<\/p>\n<ol>\u7531\u4e8e\u53ea\u80fd\u4e00\u6b21\u89e3\u6790\u4e00\u4e2a\u5b57\u7b26\uff0c\u6240\u4ee5\u4f7f\u7528 let\uff08\u5173\u952e\u5b57\uff09\u4f1a\u5f15\u53d1\u9519\u8bef\u3002\u4e0e 1 \u76f8\u540c\uff0c\u4f7f\u7528 five\uff08\u6807\u8bc6\u7b26\uff09\u4e5f\u4f1a\u5f15\u53d1\u9519\u8bef\u3002\u89e3\u6790\u6570\u5b57\u3002<\/ol>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u51fd\u6570\u6765\u5224\u65ad\u5b57\u7b26\u662f\u5426\u4e3a\u82f1\u6587\u5b57\u6bcd1\u62162\uff0c\u5e76\u4e14\u5b9e\u73b0\u4e00\u4e2a\u51fd\u6570\u6765\u8bfb\u53d6\u5e76\u63a8\u8fdb\u5b57\u7b26\uff0c\u76f4\u5230\u9047\u5230\u975e\u82f1\u6587\u5b57\u6bcd\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ \u975e\u82f1\u5b57\u307e\u3067\u8aad\u307f\u8fbc\u307f\u3092\u9032\u3081\u308b<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">l<\/span> <span class=\"o\">*<\/span><span class=\"n\">Lexer<\/span><span class=\"p\">)<\/span> <span class=\"n\">readIdentifier<\/span><span class=\"p\">()<\/span> <span class=\"kt\">string<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">position<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">position<\/span>\r\n    <span class=\"c\">\/\/ for\u6587\u3067isLetter\u95a2\u6570\u304b\u3089false\u304c\u8fd4\u3063\u3066\u304f\u308b\u307e\u3067\u8aad\u307f\u8fbc\u307f\u3092\u9032\u3081\u308b<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">isLetter<\/span><span class=\"p\">(<\/span><span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">ch<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">readChar<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"c\">\/\/ \u6700\u521d\u306e\u6587\u5b57\u304b\u3089\u975e\u82f1\u5b57\u307e\u3067\u9032\u3081\u305fposition\u307e\u3067\u3092\u8fd4\u3059<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">input<\/span><span class=\"p\">[<\/span><span class=\"n\">position<\/span><span class=\"o\">:<\/span><span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">position<\/span><span class=\"p\">]<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u5224\u65ad\u3059\u308b\u95a2\u6570<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">isLetter<\/span><span class=\"p\">(<\/span><span class=\"n\">ch<\/span> <span class=\"kt\">byte<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"sc\">'a'<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"n\">ch<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"n\">ch<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"sc\">'z'<\/span> <span class=\"o\">||<\/span> <span class=\"sc\">'A'<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"n\">ch<\/span> <span class=\"o\">&amp;&amp;<\/span> <span class=\"n\">ch<\/span> <span class=\"o\">&lt;=<\/span> <span class=\"sc\">'Z'<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u8fd9\u4e24\u4e2a\u51fd\u6570\uff0c\u7ed9NextToken()\u7684switch\u8bed\u53e5\u6dfb\u52a0\u5206\u652f\uff0c\u5c31\u53ef\u4ee5\u6210\u529f\u751f\u6210\u5b57\u7b26\u4e32\u7684\u6807\u8bb0\u3002<br \/>\n\u7136\u540e\u9700\u8981\u5bf9\u53d8\u91cf\u58f0\u660e\uff08\u5982let\uff09\u548c\u51fd\u6570\u58f0\u660e\uff08\u5982fn\uff09\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"p\">[<\/span><span class=\"o\">...<\/span><span class=\"p\">]<\/span>\r\n    <span class=\"n\">FUNCTION<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"FUNCTION\"<\/span>\r\n    <span class=\"n\">LET<\/span>      <span class=\"o\">=<\/span> <span class=\"s\">\"LET\"<\/span>\r\n\r\n<span class=\"k\">var<\/span> <span class=\"n\">keywords<\/span> <span class=\"o\">=<\/span> <span class=\"k\">map<\/span><span class=\"p\">[<\/span><span class=\"kt\">string<\/span><span class=\"p\">]<\/span><span class=\"n\">TokenType<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"s\">\"fn\"<\/span><span class=\"o\">:<\/span>     <span class=\"n\">FUNCTION<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">\"let\"<\/span><span class=\"o\">:<\/span>    <span class=\"n\">LET<\/span><span class=\"p\">,<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">LookupIdent<\/span><span class=\"p\">(<\/span><span class=\"n\">ident<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"n\">TokenType<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ readIdentifier\u3067\u8aad\u307f\u8fbc\u3093\u3060\u6587\u5b57\u5217\u3092\u5f15\u6570\u306b\u3068\u308a\u3001\u30ad\u30fc\u30ef\u30fc\u30c9\u306b\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u9069\u5207\u306aType\u3092\u8fd4\u3059<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">tok<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">keywords<\/span><span class=\"p\">[<\/span><span class=\"n\">ident<\/span><span class=\"p\">];<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">tok<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"c\">\/\/ \u8b58\u5225\u5b50\u306e\u5834\u5408<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">IDENT<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4e0e isLetter \u76f8\u540c\u7684\u662f\uff0c\u5c06\u5176\u5206\u8fa8\u4e3a\u6570\u5b57\u4ee4\u724c\u3002\u4ee3\u7801\u5c06\u88ab\u7701\u7565\u3002<\/p>\n<p>\u5728\u7b2c\u4e00\u7ae0\u7684\u6700\u540e\u5b9e\u73b0REPL\u3002<\/p>\n<h2>REPL\u7684\u5b9e\u73b0<\/h2>\n<h3>REPL \u662f\u4ec0\u4e48\uff1f<\/h3>\n<h4>\u9605\u8bfb<\/h4>\n<h4>E \u8bc4\u4ef7<\/h4>\n<h4>\u6253\u5370<\/h4>\n<h4>\u5faa\u73af<\/h4>\n<p>REPL\u662f\u4e0a\u8ff0\u7684\u7f29\u5199\u3002\u5728\u89e3\u91ca\u578b\u8bed\u8a00\u4e2d\u975e\u5e38\u5e38\u89c1\uff0c\u5b83\u63a5\u6536\u8f93\u5165\u3001\u8fdb\u884c\u8bc4\u4f30\u5e76\u91cd\u590d\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">const<\/span> <span class=\"n\">PROMPO<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"&gt;&gt;\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">Start<\/span><span class=\"p\">(<\/span><span class=\"n\">in<\/span> <span class=\"n\">io<\/span><span class=\"o\">.<\/span><span class=\"n\">Reader<\/span><span class=\"p\">,<\/span> <span class=\"n\">out<\/span> <span class=\"n\">io<\/span><span class=\"o\">.<\/span><span class=\"n\">Writer<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"c\">\/\/ scanner\u306e\u751f\u6210<\/span>\r\n    <span class=\"n\">scanner<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">bufio<\/span><span class=\"o\">.<\/span><span class=\"n\">NewScanner<\/span><span class=\"p\">(<\/span><span class=\"n\">in<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">for<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"n\">PROMPO<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">scanned<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">scanner<\/span><span class=\"o\">.<\/span><span class=\"n\">Scan<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"o\">!<\/span><span class=\"n\">scanned<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">return<\/span>\r\n        <span class=\"p\">}<\/span>\r\n        <span class=\"c\">\/\/ \u5165\u529b\u3092\u53d7\u3051\u53d6\u308b<\/span>\r\n        <span class=\"n\">line<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">scanner<\/span><span class=\"o\">.<\/span><span class=\"n\">Text<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"c\">\/\/ \u89e3\u6790\u5668\u306b\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u5217\u3092\u5165\u308c\u308b<\/span>\r\n        <span class=\"n\">l<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">lexer<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"n\">line<\/span><span class=\"p\">)<\/span>\r\n\r\n        <span class=\"c\">\/\/ \u6587\u5b57\u5217\u3092\u8a55\u4fa1\u3057\u51fa\u529b\u3001\u3053\u308c\u3092\u7e70\u308a\u8fd4\u3059\u3002<\/span>\r\n        <span class=\"k\">for<\/span> <span class=\"n\">tok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">NextToken<\/span><span class=\"p\">();<\/span> <span class=\"n\">tok<\/span><span class=\"o\">.<\/span><span class=\"n\">Type<\/span> <span class=\"o\">!=<\/span> <span class=\"n\">token<\/span><span class=\"o\">.<\/span><span class=\"n\">EOF<\/span><span class=\"p\">;<\/span> <span class=\"n\">tok<\/span> <span class=\"o\">=<\/span> <span class=\"n\">l<\/span><span class=\"o\">.<\/span><span class=\"n\">NextToken<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%+v<\/span><span class=\"se\">\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">tok<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4ee5\u4e0a\u662f\u7b2c\u4e00\u7ae0\u7684\u7ed3\u675f\u3002\u8fd9\u662f\u6211\u7b2c\u4e00\u6b21\u4ee5\u8fd9\u79cd\u5f62\u5f0f\u603b\u7ed3\u548c\u5206\u4eab\u6240\u5b66\u5230\u7684\u5185\u5bb9\uff0c\u6211\u89c9\u5f97\u8fd9\u79cd\u65b9\u5f0f\u80fd\u591f\u52a0\u6df1\u7406\u89e3\uff0c\u975e\u5e38\u6709\u610f\u4e49\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u7ee7\u7eed\u66f4\u65b0\u7b2c\u4e8c\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u800c\u8a00\u4e4b \u7b46\u8005\u534a\u5e74\u524d\u5f00\u59cb\u81ea\u5b66Python\uff0c\u4e3a\u4e86\u66f4\u6df1\u5165\u7406\u89e3\u7f16\u7a0b\uff0c\u51b3\u5b9a\u81ea\u5df1\u52a8\u624b\u5236\u4f5c\u4e00\u4e2a\u89e3\u91ca\u5668\u3002\u9009\u62e9Go\u8bed\u8a00\u7684\u539f\u56e0\u662f [&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-44231","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>\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668 - 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\/\u4f7f\u7528golang\u521b\u5efa\u89e3\u91ca\u5668\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668\" \/>\n<meta property=\"og:description\" content=\"\u7b80\u800c\u8a00\u4e4b \u7b46\u8005\u534a\u5e74\u524d\u5f00\u59cb\u81ea\u5b66Python\uff0c\u4e3a\u4e86\u66f4\u6df1\u5165\u7406\u89e3\u7f16\u7a0b\uff0c\u51b3\u5b9a\u81ea\u5df1\u52a8\u624b\u5236\u4f5c\u4e00\u4e2a\u89e3\u91ca\u5668\u3002\u9009\u62e9Go\u8bed\u8a00\u7684\u539f\u56e0\u662f [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528golang\u521b\u5efa\u89e3\u91ca\u5668\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-05T21:36:05+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T11:00:10+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d577537434c4406cdcb47\/6-0.png\" \/>\n<meta name=\"author\" content=\"\u5b87, \u534e\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u5b87, \u534e\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \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\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/\",\"name\":\"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-10-05T21:36:05+00:00\",\"dateModified\":\"2024-04-30T11:00:10+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/513018e4e121d3add1b7c5de8be21458\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/513018e4e121d3add1b7c5de8be21458\",\"name\":\"\u5b87, \u534e\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/63cd45cbc05a35fc4ff7637a163c83c4962ef58d27472726c3a3e0c9c5194f0f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/63cd45cbc05a35fc4ff7637a163c83c4962ef58d27472726c3a3e0c9c5194f0f?s=96&d=mm&r=g\",\"caption\":\"\u5b87, \u534e\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/yuhua\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528golang\u521b\u5efa\u89e3\u91ca\u5668\u3002\/","og_locale":"zh_CN","og_type":"article","og_title":"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668","og_description":"\u7b80\u800c\u8a00\u4e4b \u7b46\u8005\u534a\u5e74\u524d\u5f00\u59cb\u81ea\u5b66Python\uff0c\u4e3a\u4e86\u66f4\u6df1\u5165\u7406\u89e3\u7f16\u7a0b\uff0c\u51b3\u5b9a\u81ea\u5df1\u52a8\u624b\u5236\u4f5c\u4e00\u4e2a\u89e3\u91ca\u5668\u3002\u9009\u62e9Go\u8bed\u8a00\u7684\u539f\u56e0\u662f [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528golang\u521b\u5efa\u89e3\u91ca\u5668\u3002\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-10-05T21:36:05+00:00","article_modified_time":"2024-04-30T11:00:10+00:00","og_image":[{"url":"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d577537434c4406cdcb47\/6-0.png"}],"author":"\u5b87, \u534e","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u5b87, \u534e","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"1 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/","name":"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-10-05T21:36:05+00:00","dateModified":"2024-04-30T11:00:10+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/513018e4e121d3add1b7c5de8be21458"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u4f7f\u7528Golang\u521b\u5efa\u89e3\u91ca\u5668"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/513018e4e121d3add1b7c5de8be21458","name":"\u5b87, \u534e","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/63cd45cbc05a35fc4ff7637a163c83c4962ef58d27472726c3a3e0c9c5194f0f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/63cd45cbc05a35fc4ff7637a163c83c4962ef58d27472726c3a3e0c9c5194f0f?s=96&d=mm&r=g","caption":"\u5b87, \u534e"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/yuhua\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8golang%e5%88%9b%e5%bb%ba%e8%a7%a3%e9%87%8a%e5%99%a8%e3%80%82\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/44231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=44231"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/44231\/revisions"}],"predecessor-version":[{"id":93707,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/44231\/revisions\/93707"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=44231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=44231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=44231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}