{"id":205471,"date":"2025-06-01T10:27:27","date_gmt":"2025-06-01T02:27:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/?p=205471"},"modified":"2025-06-01T10:27:27","modified_gmt":"2025-06-01T02:27:27","slug":"go%e8%af%ad%e8%a8%80%e5%9f%ba%e7%a1%80%e5%85%a5%e9%97%a8%ef%bc%9a%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%e4%b8%8e%e8%af%ad%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205471\/","title":{"rendered":"Go\u8bed\u8a00\u57fa\u7840\u5165\u95e8\uff1a\u6570\u636e\u7c7b\u578b\u4e0e\u8bed\u6cd5\u8be6\u89e3"},"content":{"rendered":"<h2>\u524d\u8a00<\/h2>\n<p>\u5728\u6784\u5efa\u9ad8\u6027\u80fd\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u9009\u62e9\u4e00\u95e8\u9ad8\u6548\u4e14\u6613\u4e8e\u90e8\u7f72\u7684\u7f16\u7a0b\u8bed\u8a00\u81f3\u5173\u91cd\u8981\u3002Go\uff08Golang\uff09\u8bed\u8a00\u56e0\u5176\u5e76\u53d1\u5904\u7406\u80fd\u529b\u5f3a\u3001\u8bed\u6cd5\u7b80\u6d01\u3001\u7f16\u8bd1\u5feb\u901f\u7b49\u7279\u70b9\uff0c\u6210\u4e3a\u5f00\u53d1\u5fae\u670d\u52a1\u3001\u4e91\u539f\u751f\u7cfb\u7edf\u7684\u70ed\u95e8\u8bed\u8a00\u3002\u672c\u6587\u5c06\u5168\u9762\u4ecb\u7ecd Go \u8bed\u8a00\u4e2d\u7684\u57fa\u7840\u6570\u636e\u7c7b\u578b\u4e0e\u76f8\u5173\u8bed\u6cd5\u77e5\u8bc6\uff0c\u540c\u65f6\u4e5f\u5c06\u63a2\u8ba8\u5982\u4f55\u5728\u5b9e\u9645\u90e8\u7f72\u4e2d\u9009\u62e9\u5408\u9002\u7684\u670d\u52a1\u5668\uff0c\u5c24\u5176\u662f\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u5728\u5f00\u53d1\u8005\u4e2d\u7684\u4f18\u52bf\u3002<\/p>\n<h2>\u4e00\u3001\u53d8\u91cf\u58f0\u660e\u4e0e\u9ed8\u8ba4\u503c<\/h2>\n<p>Go \u7684\u53d8\u91cf\u58f0\u660e\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u5f0f\uff0c\u672a\u663e\u5f0f\u8d4b\u503c\u7684\u53d8\u91cf\u4f1a\u81ea\u52a8\u83b7\u53d6\u7c7b\u578b\u7684\u9ed8\u8ba4\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-go\">var a string         \/\/ \u9ed8\u8ba4\u503c\u4e3a \"\"\r\nvar b int            \/\/ \u9ed8\u8ba4\u503c\u4e3a 0\r\nvar a, b string      \/\/ \u540c\u65f6\u58f0\u660e\u591a\u4e2a\u53d8\u91cf\r\ns, sep := \"\", \"\"     \/\/ \u7b80\u77ed\u53d8\u91cf\u58f0\u660e\u5e76\u8d4b\u503c\r\n<\/code><\/pre>\n<p>\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u4e86\u89e3\u8fd9\u4e9b\u9ed8\u8ba4\u884c\u4e3a\uff0c\u6709\u52a9\u4e8e\u5feb\u901f\u5b9a\u4f4d\u7a0b\u5e8f\u4e2d\u7684\u5f02\u5e38\u6570\u636e\u5904\u7406\u95ee\u9898\u3002<\/p>\n<h2>\u4e8c\u3001\u6574\u578b\u4e0e\u79d1\u5b66\u8ba1\u6570\u6cd5<\/h2>\n<p>Go \u652f\u6301\u591a\u79cd\u6574\u6570\u7c7b\u578b\uff0c\u5305\u62ec\u5e26\u7b26\u53f7\uff08int8\u3001int16\u3001int32\u3001int64\uff09\u4e0e\u65e0\u7b26\u53f7\uff08uint8\u3001uint16 \u7b49\uff09\u7c7b\u578b\u3002\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li><code>rune<\/code> \u5b9e\u9645\u4e0a\u662f <code>int32<\/code><\/li>\n<li><code>byte<\/code> \u7b49\u4ef7\u4e8e <code>uint8<\/code><\/li>\n<\/ul>\n<p>\u79d1\u5b66\u8ba1\u6570\u6cd5\u5728\u6570\u503c\u8ba1\u7b97\u4e2d\u5341\u5206\u5e38\u7528\uff1a<\/p>\n<pre><code class=\"language-go\">var h = 9090e-3    \/\/ \u7b49\u540c\u4e8e 9090 \/ 10^3\r\nvar i = 9090e3     \/\/ \u7b49\u540c\u4e8e 9090 * 10^3\r\n<\/code><\/pre>\n<p>\u8fd9\u7c7b\u5199\u6cd5\u7b80\u6d01\u660e\u4e86\uff0c\u975e\u5e38\u9002\u5408\u5728\u6d89\u53ca\u5927\u91cf\u6570\u5b66\u8fd0\u7b97\u7684\u540e\u7aef\u7cfb\u7edf\u4e2d\u4f7f\u7528\uff0c\u5c24\u5176\u5728\u90e8\u7f72\u4e8e<strong>\u9999\u6e2f\u72ec\u7acb\u670d\u52a1\u5668<\/strong>\u65f6\uff0c\u5bf9\u4e8e\u6570\u636e\u5904\u7406\u578b\u4efb\u52a1\u5c24\u4e3a\u9ad8\u6548\u3002<\/p>\n<h2>\u4e09\u3001\u5b57\u7b26\u4e0e\u5b57\u7b26\u4e32\u7c7b\u578b<\/h2>\n<p>Go \u7684\u5b57\u7b26\u4f7f\u7528\u5355\u5f15\u53f7\u8868\u793a\u5e76\u5b58\u50a8\u4e3a\u6574\u578b\uff0c\u800c\u5b57\u7b26\u4e32\u4f7f\u7528\u53cc\u5f15\u53f7\u8868\u793a\uff1a<\/p>\n<pre><code class=\"language-go\">var a byte = 'a'       \/\/ \u8f93\u51fa\u4e3a 97\r\nvar b int = '\u6709'       \/\/ Unicode\u7801\u4e3a 26377\r\nvar s string = \"hello world\" \r\n<\/code><\/pre>\n<p>Go \u4e2d\u7684\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u5728\u5e76\u53d1\u7f16\u7a0b\u573a\u666f\u4e0b\u53ef\u6709\u6548\u63d0\u5347\u5185\u5b58\u4e0e\u7ebf\u7a0b\u5b89\u5168\u6027\u3002\u6b64\u5916\uff0c\u53cd\u5f15\u53f7 <code>`<\/code> \u53ef\u7528\u4e8e\u58f0\u660e\u539f\u59cb\u5b57\u7b26\u4e32\uff0c\u975e\u5e38\u9002\u5408\u5904\u7406 HTML\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u7b49\u5185\u5bb9\u3002<\/p>\n<h2>\u56db\u3001\u7c7b\u578b\u8f6c\u6362\u4e0e\u6307\u9488\u64cd\u4f5c<\/h2>\n<p>Go \u63d0\u4f9b\u4e86 <code>strconv<\/code> \u6807\u51c6\u5e93\u7528\u4e8e\u6570\u636e\u7c7b\u578b\u4e0e\u5b57\u7b26\u4e32\u4e4b\u95f4\u7684\u8f6c\u6362\uff1a<\/p>\n<pre><code class=\"language-go\">strconv.FormatInt() \/\/ \u6574\u578b\u8f6c\u5b57\u7b26\u4e32\r\nstrconv.ParseInt()  \/\/ \u5b57\u7b26\u4e32\u8f6c\u6574\u578b\r\n<\/code><\/pre>\n<p>\u540c\u65f6\uff0cGo \u901a\u8fc7\u6307\u9488\u64cd\u4f5c\u63d0\u9ad8\u4e86\u53d8\u91cf\u7684\u5185\u5b58\u63a7\u5236\u80fd\u529b\uff1a<\/p>\n<pre><code class=\"language-go\">var a int = 10\r\nvar p *int = &amp;a      \/\/ p \u662f\u6307\u5411 a \u7684\u6307\u9488\r\nfmt.Println(*p)      \/\/ \u8f93\u51fa a \u7684\u503c\r\n<\/code><\/pre>\n<p>\u8fd9\u5728\u9700\u8981\u8d44\u6e90\u4f18\u5316\u7684\u670d\u52a1\u5668\u5f00\u53d1\u4e2d\u975e\u5e38\u5b9e\u7528\uff0c\u7ed3\u5408<strong>\u9999\u6e2fVPS<\/strong>\u7684\u7075\u6d3b\u6027\u80fd\u914d\u7f6e\uff0c\u80fd\u6709\u6548\u63d0\u5347\u7cfb\u7edf\u6548\u7387\u3002<\/p>\n<h2>\u4e94\u3001\u8fd0\u7b97\u7b26\u4e0e\u8fdb\u5236\u8f6c\u6362<\/h2>\n<p>Go \u4e0d\u652f\u6301\u81ea\u589e\u8868\u8fbe\u5f0f\u5982 <code>a++<\/code> \u76f4\u63a5\u8d4b\u503c\uff0c\u4e5f\u4e0d\u652f\u6301\u4e09\u76ee\u8fd0\u7b97\u7b26\uff0c\u4f46\u57fa\u672c\u8fd0\u7b97\u4f9d\u7136\u9f50\u5168\u3002\u6b64\u5916\uff0cGo \u5728\u8fdb\u5236\u8f6c\u6362\u65b9\u9762\u8868\u73b0\u5f3a\u5927\uff1a<\/p>\n<ul>\n<li>\u4e8c\u8fdb\u5236\u8f6c\u5341\u8fdb\u5236\uff1a\u6309\u4f4d\u6743\u91cd\u76f8\u52a0<\/li>\n<li>\u5341\u8fdb\u5236\u8f6c\u4e8c\u8fdb\u5236\uff1a\u53d6\u4f59\u53cd\u8f6c\u6cd5<\/li>\n<li>\u4e8c\u8fdb\u5236\u4e0e\u516b\u8fdb\u5236\u3001\u5341\u516d\u8fdb\u5236\u4e92\u8f6c\uff1a\u6309\u4f4d\u5206\u7ec4\u8f6c\u6362<\/li>\n<\/ul>\n<p>\u8fd9\u4e3a\u7cfb\u7edf\u5c42\u7ea7\u5f00\u53d1\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5e95\u5c42\u652f\u6301\uff0c\u5c24\u5176\u9002\u5408\u90e8\u7f72\u5728\u9ad8\u7a33\u5b9a\u6027\u7f51\u7edc\u73af\u5883\u4e0b\u7684<strong>\u9999\u6e2f\u4e91\u670d\u52a1\u5668<\/strong>\u67b6\u6784\u4e2d\u3002<\/p>\n<h2>\u516d\u3001\u63a7\u5236\u8bed\u53e5\u4e0e\u5faa\u73af\u7ed3\u6784<\/h2>\n<p>Go \u7684 <code>switch<\/code> \u8bed\u53e5\u65e0\u9700\u624b\u52a8\u6dfb\u52a0 <code>break<\/code>\uff0c\u8bed\u6cd5\u66f4\u4e3a\u7b80\u6d01\u3002<code>for<\/code> \u662f\u552f\u4e00\u7684\u5faa\u73af\u5173\u952e\u5b57\uff1a<\/p>\n<pre><code class=\"language-go\">for i := 0; i &lt; 10; i++ {\r\n    fmt.Println(i)\r\n}\r\n<\/code><\/pre>\n<p>\u540c\u65f6\u652f\u6301 <code>goto<\/code>\u3001<code>break<\/code>\u3001<code>continue<\/code> \u7b49\u8bed\u53e5\u4ee5\u53ca\u6807\u7b7e\u8df3\u8f6c\uff0c\u975e\u5e38\u9002\u5408\u6784\u5efa\u903b\u8f91\u6e05\u6670\u3001\u6d41\u7a0b\u4e25\u8c28\u7684\u7cfb\u7edf\u6a21\u5757\u3002<\/p>\n<h2>\u4e03\u3001\u51fd\u6570\u7279\u6027\u4e0e\u95ed\u5305\u673a\u5236<\/h2>\n<p>Go \u7684\u51fd\u6570\u5177\u6709\u5f3a\u5927\u7684\u8868\u8fbe\u80fd\u529b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u51fd\u6570\u53ef\u4ee5\u8d4b\u503c\u7ed9\u53d8\u91cf\u3001\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012<\/li>\n<li>\u652f\u6301\u533f\u540d\u51fd\u6570\u4e0e\u95ed\u5305<\/li>\n<li>\u652f\u6301\u53d8\u53c2\u51fd\u6570\uff08&#8230;args\uff09<\/li>\n<\/ul>\n<p>\u4f8b\u5982\u95ed\u5305\u7684\u5b9a\u4e49\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-go\">func Add() func(int) int {\r\n\tn := 10\r\n\treturn func(x int) int {\r\n\t\tn += x\r\n\t\treturn n\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u95ed\u5305\u9002\u5408\u7528\u4e8e\u72b6\u6001\u4fdd\u6301\u3001\u7f13\u5b58\u6784\u5efa\u7b49\u573a\u666f\uff0c\u5e38\u89c1\u4e8e Web \u5e94\u7528\u4e0e\u4e2d\u95f4\u4ef6\u670d\u52a1\uff0c\u90e8\u7f72\u5728\u7f51\u7edc\u7a33\u5b9a\u3001\u4f4e\u5ef6\u8fdf\u7684<strong>\u9999\u6e2f\u72ec\u7acb\u670d\u52a1\u5668<\/strong>\u4e0a\u5c24\u4e3a\u5408\u9002\u3002<\/p>\n<h2>\u516b\u3001\u8f93\u51fa\u4e0e\u8c03\u8bd5<\/h2>\n<p>Go \u7684\u8f93\u51fa\u65b9\u5f0f\u7075\u6d3b\u591a\u6837\uff1a<\/p>\n<pre><code class=\"language-go\">fmt.Println(\"\u6807\u51c6\u8f93\u51fa\")\r\nfmt.Fprintf(os.Stderr, \"\u9519\u8bef\u8f93\u51fa\")\r\nfmt.Printf(\"\u683c\u5f0f\u5316\u8f93\u51fa: %v\\n\", value)\r\n<\/code><\/pre>\n<p>\u914d\u5408\u826f\u597d\u7684\u65e5\u5fd7\u7cfb\u7edf\uff0c\u53ef\u4e3a\u7ebf\u4e0a\u7cfb\u7edf\u63d0\u4f9b\u53ef\u9760\u7684\u8c03\u8bd5\u652f\u6301\u3002<\/p>\n<hr \/>\n<h2>\u7ed3\u8bed\uff1a\u5f00\u53d1\u90e8\u7f72\u4e3a\u4f55\u63a8\u8350\u9999\u6e2f\u670d\u52a1\u5668\uff1f<\/h2>\n<p>\u968f\u7740\u4e1a\u52a1\u5168\u7403\u5316\u53d1\u5c55\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u6280\u672f\u56e2\u961f\u503e\u5411\u4e8e\u5c06\u670d\u52a1\u90e8\u7f72\u5728\u5730\u7406\u4f4d\u7f6e\u4f18\u8d8a\u3001\u7f51\u7edc\u901f\u5ea6\u5feb\u7684\u8282\u70b9\u4e0a\u3002<a href=\"https:\/\/server.hk\/\"><strong>\u9999\u6e2f\u4e91\u670d\u52a1\u5668<\/strong> <\/a>\u548c <strong>\u9999\u6e2f\u72ec\u7acb\u670d\u52a1\u5668<\/strong> \u4e0d\u4ec5\u63d0\u4f9b\u7a33\u5b9a\u7684\u56fd\u9645\u5e26\u5bbd\u4e0e\u8f83\u4f4e\u5ef6\u8fdf\uff0c\u8fd8\u80fd\u6ee1\u8db3 Go \u7a0b\u5e8f\u90e8\u7f72\u4e2d\u5bf9\u5e26\u5bbd\u4e0e\u7cfb\u7edf\u6027\u80fd\u7684\u9ad8\u8981\u6c42\uff0c\u52a9\u529b\u60a8\u7684\u9879\u76ee\u5feb\u901f\u4e0a\u7ebf\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u5728\u6784\u5efa\u9ad8\u6027\u80fd\u5e94\u7528\u7a0b\u5e8f\u65f6\uff0c\u9009&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-205471","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205471","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=205471"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205471\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205471"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205471"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205471"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}