{"id":3155,"date":"2025-03-25T23:33:57","date_gmt":"2025-03-25T15:33:57","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3155"},"modified":"2025-03-25T23:33:57","modified_gmt":"2025-03-25T15:33:57","slug":"go-%e8%af%ad%e8%a8%80%e5%9f%ba%e7%a1%80%e8%af%ad%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/25\/go-%e8%af%ad%e8%a8%80%e5%9f%ba%e7%a1%80%e8%af%ad%e6%b3%95%e8%af%a6%e8%a7%a3\/","title":{"rendered":"Go \u8bed\u8a00\u57fa\u7840\u8bed\u6cd5\u8be6\u89e3"},"content":{"rendered":"\n<p>Go\uff08Golang\uff09\u662f\u4e00\u79cd\u9759\u6001\u7c7b\u578b\u3001\u7f16\u8bd1\u578b\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u4ee5\u7b80\u6d01\u3001\u9ad8\u6548\u548c\u5e76\u53d1\u652f\u6301\u8457\u79f0\u3002\u672c\u7bc7\u5185\u5bb9\u5c06\u7cfb\u7edf\u8bb2\u89e3 Go \u8bed\u8a00\u7684\u57fa\u7840\u8bed\u6cd5\uff0c\u5305\u62ec\u53d8\u91cf\u3001\u6570\u636e\u7c7b\u578b\u3001\u6d41\u7a0b\u63a7\u5236\u3001\u51fd\u6570\u3001\u6307\u9488\u3001\u7ed3\u6784\u4f53\u3001\u63a5\u53e3\u7b49\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>1. Go \u8bed\u8a00\u57fa\u672c\u7ed3\u6784<\/strong><\/h2>\n\n\n\n<p>Go \u7a0b\u5e8f\u7684\u57fa\u672c\u7ed3\u6784\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package main  \/\/ \u58f0\u660e\u5f53\u524d\u5305\uff0cGo \u7a0b\u5e8f\u7684\u5165\u53e3\u5fc5\u987b\u662f main \u5305\n\nimport \"fmt\"  \/\/ \u5bfc\u5165 fmt \u5305\uff08\u7528\u4e8e\u8f93\u5165\u8f93\u51fa\uff09\n\nfunc main() {  \/\/ \u4e3b\u51fd\u6570\uff0c\u7a0b\u5e8f\u5165\u53e3\n    fmt.Println(\"Hello, Go!\")  \/\/ \u8f93\u51fa\u5185\u5bb9\n}<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>package main<\/strong>\uff1a\u5b9a\u4e49\u4e00\u4e2a\u53ef\u6267\u884c\u7a0b\u5e8f\u7684\u4e3b\u5305\u3002<\/li>\n\n\n\n<li><strong>import &#8220;fmt&#8221;<\/strong>\uff1a\u5bfc\u5165 <code>fmt<\/code> \u5305\uff0c\u7528\u4e8e\u6807\u51c6\u8f93\u5165\u8f93\u51fa\u3002<\/li>\n\n\n\n<li><strong>func main()<\/strong>\uff1a\u7a0b\u5e8f\u7684\u4e3b\u5165\u53e3\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>2. \u53d8\u91cf\u4e0e\u5e38\u91cf<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09\u53d8\u91cf\u7684\u58f0\u660e<\/strong><\/h3>\n\n\n\n<p>Go \u8bed\u8a00\u7684\u53d8\u91cf\u5fc5\u987b\u5148\u58f0\u660e\u540e\u4f7f\u7528\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>var<\/code> \u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var name string = \"Go\"\nvar age int = 10\nvar pi float64 = 3.1415<\/code><\/pre>\n\n\n\n<p>Go \u4e5f\u652f\u6301\u7c7b\u578b\u63a8\u5bfc\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>var country = \"China\" \/\/ \u81ea\u52a8\u63a8\u5bfc\u4e3a string \u7c7b\u578b<\/code><\/pre>\n\n\n\n<p>\u7b80\u77ed\u58f0\u660e\uff08\u53ea\u80fd\u5728\u51fd\u6570\u5185\u4f7f\u7528\uff09\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>language := \"Go\" \/\/ \u81ea\u52a8\u63a8\u5bfc\u7c7b\u578b<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09\u591a\u53d8\u91cf\u58f0\u660e<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var a, b, c int = 1, 2, 3\nx, y := \"hello\", 100<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff083\uff09\u5e38\u91cf<\/strong><\/h3>\n\n\n\n<p>\u5e38\u91cf\u4f7f\u7528 <code>const<\/code> \u5173\u952e\u5b57\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const PI = 3.14\nconst (\n    StatusOK = 200\n    StatusNotFound = 404\n)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>3. \u6570\u636e\u7c7b\u578b<\/strong><\/h2>\n\n\n\n<p>Go \u8bed\u8a00\u6570\u636e\u7c7b\u578b\u5206\u4e3a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u57fa\u672c\u7c7b\u578b<\/strong>\uff1a<code>int<\/code>\u3001<code>float32<\/code>\u3001<code>float64<\/code>\u3001<code>bool<\/code>\u3001<code>string<\/code><\/li>\n\n\n\n<li><strong>\u590d\u5408\u7c7b\u578b<\/strong>\uff1a<code>array<\/code>\u3001<code>slice<\/code>\u3001<code>map<\/code>\u3001<code>struct<\/code>\u3001<code>pointer<\/code>\u3001<code>interface<\/code>\u3001<code>channel<\/code><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09\u6574\u578b<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var a int8 = 127\nvar b uint32 = 12345\nvar c int = 100 \/\/ \u6839\u636e\u7cfb\u7edf\u81ea\u52a8\u63a8\u5bfc 32 \u6216 64 \u4f4d<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09\u6d6e\u70b9\u578b<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var pi float64 = 3.14159<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff083\uff09\u5e03\u5c14\u578b<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var isGo bool = true<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff084\uff09\u5b57\u7b26\u4e32<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var msg string = \"Hello, Go!\"\nfmt.Println(len(msg)) \/\/ \u8ba1\u7b97\u5b57\u7b26\u4e32\u957f\u5ea6<\/code><\/pre>\n\n\n\n<p>\u591a\u884c\u5b57\u7b26\u4e32\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>msg := `This is \na multi-line string`<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>4. \u8fd0\u7b97\u7b26<\/strong><\/h2>\n\n\n\n<p>Go \u652f\u6301\u7684\u8fd0\u7b97\u7b26\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7b97\u672f\u8fd0\u7b97\u7b26<\/strong>\uff1a<code>+<\/code> <code>-<\/code> <code>*<\/code> <code>\/<\/code> <code>%<\/code><\/li>\n\n\n\n<li><strong>\u6bd4\u8f83\u8fd0\u7b97\u7b26<\/strong>\uff1a<code>==<\/code> <code>!=<\/code> <code>><\/code> <code>&lt;<\/code> <code>>=<\/code> <code>&lt;=<\/code><\/li>\n\n\n\n<li><strong>\u903b\u8f91\u8fd0\u7b97\u7b26<\/strong>\uff1a<code>&amp;&amp;<\/code> <code>||<\/code> <code>!<\/code><\/li>\n\n\n\n<li><strong>\u4f4d\u8fd0\u7b97\u7b26<\/strong>\uff1a<code>&amp;<\/code> <code>|<\/code> <code>^<\/code> <code>&lt;&lt;<\/code> <code>>><\/code><\/li>\n\n\n\n<li><strong>\u8d4b\u503c\u8fd0\u7b97\u7b26<\/strong>\uff1a<code>=<\/code> <code>+=<\/code> <code>-=<\/code> <code>*=<\/code> <code>\/=<\/code><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>5. \u6d41\u7a0b\u63a7\u5236<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09if \u8bed\u53e5<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>if age &gt; 18 {\n    fmt.Println(\"Adult\")\n} else {\n    fmt.Println(\"Minor\")\n}<\/code><\/pre>\n\n\n\n<p>\u652f\u6301\u5728 <code>if<\/code> \u8bed\u53e5\u4e2d\u58f0\u660e\u53d8\u91cf\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if num := 10; num &gt; 5 {\n    fmt.Println(\"Greater than 5\")\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09switch \u8bed\u53e5<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>switch day := 3; day {\ncase 1:\n    fmt.Println(\"Monday\")\ncase 2:\n    fmt.Println(\"Tuesday\")\ndefault:\n    fmt.Println(\"Other day\")\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff083\uff09for \u5faa\u73af<\/strong><\/h3>\n\n\n\n<p>Go \u53ea\u6709 <code>for<\/code> \u4e00\u79cd\u5faa\u73af\u7ed3\u6784\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>for i := 0; i &lt; 5; i++ {\n    fmt.Println(i)\n}<\/code><\/pre>\n\n\n\n<p>\u7b49\u4ef7\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>i := 0\nfor i &lt; 5 {\n    fmt.Println(i)\n    i++\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>6. \u6570\u7ec4\u4e0e\u5207\u7247<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09\u6570\u7ec4<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>var arr &#91;3]int = &#91;3]int{1, 2, 3}\nfmt.Println(arr&#91;0]) \/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09\u5207\u7247\uff08Slice\uff09<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>nums := &#91;]int{1, 2, 3, 4}\nfmt.Println(nums&#91;:2]) \/\/ &#91;1, 2]<\/code><\/pre>\n\n\n\n<p>\u4f7f\u7528 <code>append<\/code> \u6dfb\u52a0\u5143\u7d20\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>nums = append(nums, 5)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>7. Map\uff08\u5b57\u5178\uff09<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>scores := map&#91;string]int{\"Alice\": 90, \"Bob\": 85}\nfmt.Println(scores&#91;\"Alice\"])<\/code><\/pre>\n\n\n\n<p>\u6dfb\u52a0\/\u4fee\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>scores&#91;\"Tom\"] = 88<\/code><\/pre>\n\n\n\n<p>\u904d\u5386\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>for k, v := range scores {\n    fmt.Println(k, v)\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>8. \u51fd\u6570<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09\u57fa\u672c\u51fd\u6570<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>func add(a int, b int) int {\n    return a + b\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09\u591a\u8fd4\u56de\u503c<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>func swap(a, b int) (int, int) {\n    return b, a\n}<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff083\uff09\u53ef\u53d8\u53c2\u6570<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>func sum(nums ...int) int {\n    total := 0\n    for _, num := range nums {\n        total += num\n    }\n    return total\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>9. \u6307\u9488<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>var p *int\nnum := 100\np = &amp;num\nfmt.Println(*p) \/\/ 100<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>10. \u7ed3\u6784\u4f53<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>type Person struct {\n    Name string\n    Age  int\n}\n\np := Person{\"Alice\", 25}\nfmt.Println(p.Name)<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>11. \u63a5\u53e3<\/strong><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>type Speaker interface {\n    Speak()\n}\n\ntype Dog struct{}\n\nfunc (d Dog) Speak() {\n    fmt.Println(\"Woof!\")\n}\n\nvar s Speaker = Dog{}\ns.Speak()<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>12. \u5e76\u53d1\uff08Goroutines &amp; Channels\uff09<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff081\uff09Goroutines<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>go func() {\n    fmt.Println(\"Hello from Goroutine!\")\n}()<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\uff082\uff09Channel<\/strong><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ch := make(chan int)\ngo func() {\n    ch &lt;- 10\n}()\nfmt.Println(&lt;-ch) \/\/ 10<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>13. \u53c2\u8003\u8d44\u6599<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b98\u65b9\u6587\u6863\uff1a<a href=\"https:\/\/golang.org\/doc\/\">Go \u5b98\u65b9\u6587\u6863<\/a><\/li>\n\n\n\n<li>Go Playground \u5728\u7ebf\u6d4b\u8bd5\uff1a<a href=\"https:\/\/go.dev\/play\/\">Go Playground<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Go\uff08Golang\uff09\u662f\u4e00\u79cd\u9759\u6001\u7c7b\u578b\u3001\u7f16\u8bd1\u578b\u7684\u7f16\u7a0b\u8bed\u8a00\uff0c\u4ee5\u7b80\u6d01\u3001\u9ad8\u6548\u548c\u5e76\u53d1\u652f\u6301\u8457\u79f0\u3002\u672c\u7bc7\u5185\u5bb9\u5c06\u7cfb\u7edf\u8bb2\u89e3 Go \u8bed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3156,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-3155","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3155","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3155"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3155\/revisions"}],"predecessor-version":[{"id":3157,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3155\/revisions\/3157"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3156"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}