{"id":676,"date":"2024-04-17T17:55:35","date_gmt":"2024-04-17T09:55:35","guid":{"rendered":"http:\/\/120.55.184.7\/?p=676"},"modified":"2025-04-19T00:38:29","modified_gmt":"2025-04-18T16:38:29","slug":"go-%e7%ab%9e%e6%80%81%e6%a3%80%e6%b5%8b","status":"publish","type":"post","link":"https:\/\/beijian99.top\/?p=676","title":{"rendered":"Go \u7ade\u6001\u68c0\u6d4b"},"content":{"rendered":"\n<p>\u6570\u636e\u7ade\u4e89\uff08Data Race\uff09\u662f\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\uff0c\u6307\u591a\u4e2a goroutine \u5e76\u53d1\u8bbf\u95ee\u540c\u4e00\u5171\u4eab\u53d8\u91cf\u4e14\u81f3\u5c11\u6709\u4e00\u4e2a\u662f\u5199\u64cd\u4f5c\uff0c\u5bfc\u81f4\u7a0b\u5e8f\u884c\u4e3a\u4e0d\u53ef\u9884\u6d4b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u6570\u636e\u7ade\u4e89\u7684\u5b9a\u4e49\u4e0e\u5371\u5bb3<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5b9a\u4e49<\/strong>\uff1a\u5f53\u591a\u4e2a goroutine \u672a\u540c\u6b65\u5730\u8bbf\u95ee\u5171\u4eab\u53d8\u91cf\uff08\u81f3\u5c11\u4e00\u4e2a\u5199\u64cd\u4f5c\uff09\u65f6\uff0c\u4f1a\u53d1\u751f\u6570\u636e\u7ade\u4e89\u3002<\/li>\n\n\n\n<li><strong>\u5371\u5bb3<\/strong>\uff1a<br>\u2022 \u7a0b\u5e8f\u884c\u4e3a\u4e0d\u53ef\u9884\u6d4b\uff08\u5982\u53d8\u91cf\u503c\u610f\u5916\u6539\u53d8\uff09\u3002<br>\u2022 \u53ef\u80fd\u5bfc\u81f4\u5185\u5b58\u635f\u574f\u6216\u5d29\u6e83\u3002<br>\u2022 \u96be\u4ee5\u8c03\u8bd5\uff0c\u56e0\u7ade\u4e89\u6761\u4ef6\u53ef\u80fd\u4ec5\u5728\u7279\u5b9a\u6761\u4ef6\u4e0b\u51fa\u73b0\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Go \u7684\u6570\u636e\u7ade\u4e89\u68c0\u6d4b\u5de5\u5177<\/strong><\/h3>\n\n\n\n<p>Go \u4ece 1.1 \u7248\u672c\u5185\u7f6e\u7ade\u6001\u68c0\u6d4b\u5668\uff0c\u901a\u8fc7 <code>-race<\/code> \u6807\u5fd7\u542f\u7528\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u7f16\u8bd1\u65f6\u68c0\u6d4b<\/strong>\uff1a<code>go build -race<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u8fd0\u884c\u65f6\u68c0\u6d4b<\/strong>\uff1a<code>go run -race main.go<\/code>\u3002<\/li>\n\n\n\n<li><strong>\u6d4b\u8bd5\u65f6\u68c0\u6d4b<\/strong>\uff1a<code>go test -race .\/...<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u5de5\u4f5c\u539f\u7406<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f16\u8bd1\u5668\u63d2\u5165\u7279\u6b8a\u4ee3\u7801\uff0c\u8fd0\u884c\u65f6\u76d1\u63a7\u5185\u5b58\u8bbf\u95ee\u3002<\/li>\n\n\n\n<li>\u68c0\u6d4b\u5230\u7ade\u4e89\u65f6\uff0c\u8f93\u51fa\u8be6\u7ec6\u5806\u6808\u4fe1\u606f\uff08\u5305\u62ec\u51b2\u7a81\u7684 goroutine \u548c\u4ee3\u7801\u4f4d\u7f6e\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>\u793a\u4f8b\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nWARNING: DATA RACE\nWrite at 0x00c00009c008 by goroutine 6:\n  main.main.func1()\nRead at 0x00c00009c008 by main goroutine:\n  main.main()\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u5e38\u89c1\u6570\u636e\u7ade\u4e89\u573a\u666f\u4e0e\u89e3\u51b3\u65b9\u6848<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u573a\u666f1\uff1a\u672a\u540c\u6b65\u7684\u5171\u4eab\u53d8\u91cf\u8bbf\u95ee<\/strong><\/h4>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: go; title: ; notranslate\" title=\"\">\nvar counter int\ngo func() { counter++ }() \/\/ \u5199\u64cd\u4f5c\nfmt.Println(counter)     \/\/ \u8bfb\u64cd\u4f5c\n<\/pre><\/div>\n\n\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e92\u65a5\u9501\uff08Mutex\uff09<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: go; title: ; notranslate\" title=\"\">\n  var mu sync.Mutex\n  mu.Lock()\n  counter++\n  mu.Unlock()\n<\/pre><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u539f\u5b50\u64cd\u4f5c\uff08atomic\uff09<\/strong>\uff1a<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n  atomic.AddInt64(&amp;amp;counter, 1)\n<\/pre><\/div>\n\n\n<h4 class=\"wp-block-heading\"><strong>\u573a\u666f2\uff1a\u5faa\u73af\u95ed\u5305\u6355\u83b7\u53d8\u91cf<\/strong><\/h4>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: go; title: ; notranslate\" title=\"\">\nfor i := 0; i &lt; 5; i++ {\n    go func() { fmt.Println(i) }() \/\/ \u53ef\u80fd\u8f93\u51fa\u91cd\u590d\u503c\n}\n<\/pre><\/div>\n\n\n<p><strong>\u4fee\u590d<\/strong>\uff1a\u901a\u8fc7\u53c2\u6570\u4f20\u9012\u53d8\u91cf\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: go; title: ; notranslate\" title=\"\">\ngo func(i int) { fmt.Println(i) }(i)\n<\/pre><\/div>\n\n\n<h4 class=\"wp-block-heading\"><strong>\u573a\u666f3\uff1a\u901a\u9053\u672a\u540c\u6b65<\/strong><\/h4>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: go; title: ; notranslate\" title=\"\">\nvar data int\ndone := make(chan bool)\ngo func() { data = 1; done &lt;- true }()\n&lt;-done\nfmt.Println(data)\n<\/pre><\/div>\n\n\n<p><strong>\u6ce8\u610f<\/strong>\uff1a\u901a\u9053\u672c\u8eab\u662f\u540c\u6b65\u7684\uff0c\u4f46\u9700\u786e\u4fdd\u5199\u64cd\u4f5c\u5728\u901a\u9053\u53d1\u9001\u524d\u5b8c\u6210\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. \u7ade\u6001\u68c0\u6d4b\u7684\u5c40\u9650\u6027<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6027\u80fd\u5f00\u9500<\/strong>\uff1a\u542f\u7528 <code>-race<\/code> \u540e\uff0c\u7a0b\u5e8f\u5185\u5b58\u5360\u7528\u589e\u52a0 5-10 \u500d\uff0c\u6267\u884c\u65f6\u95f4\u5ef6\u957f 2-20 \u500d\u3002<\/li>\n\n\n\n<li><strong>\u5e73\u53f0\u9650\u5236<\/strong>\uff1a\u4ec5\u652f\u6301 64 \u4f4d\u7cfb\u7edf\uff08\u5982 <code>linux\/amd64<\/code>\u3001<code>windows\/amd64<\/code>\uff09\u3002<\/li>\n\n\n\n<li><strong>\u975e\u4e07\u80fd<\/strong>\uff1a\u65e0\u6cd5\u68c0\u6d4b\u6240\u6709\u5e76\u53d1\u95ee\u9898\uff08\u5982\u903b\u8f91\u9519\u8bef\u6216\u6b7b\u9501\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. \u6700\u4f73\u5b9e\u8df5<\/strong><\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5f00\u53d1\u9636\u6bb5\u542f\u7528 <code>-race<\/code><\/strong>\uff1a\u5c24\u5176\u5728\u5355\u5143\u6d4b\u8bd5\u4e2d\u3002<\/li>\n\n\n\n<li><strong>\u907f\u514d\u5171\u4eab\u72b6\u6001<\/strong>\uff1a\u4f18\u5148\u4f7f\u7528\u901a\u9053\u4f20\u9012\u6570\u636e\u800c\u975e\u5171\u4eab\u53d8\u91cf\u3002<\/li>\n\n\n\n<li><strong>\u7ed3\u5408\u5176\u4ed6\u5de5\u5177<\/strong>\uff1a\u5982 <code>go vet<\/code> \u68c0\u67e5\u9759\u6001\u95ee\u9898\uff0c<code>-race<\/code> \u5904\u7406\u52a8\u6001\u7ade\u4e89\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u901a\u8fc7\u5408\u7406\u4f7f\u7528\u7ade\u6001\u68c0\u6d4b\u5668\u548c\u540c\u6b65\u673a\u5236\uff0c\u53ef\u663e\u8457\u63d0\u5347 Go \u5e76\u53d1\u7a0b\u5e8f\u7684\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u636e\u7ade\u4e89\uff08Data Race\uff09\u662f\u5e76\u53d1\u7f16\u7a0b\u4e2d\u7684\u5e38\u89c1\u95ee\u9898\uff0c\u6307\u591a\u4e2a goroutine \u5e76\u53d1\u8bbf\u95ee\u540c\u4e00\u5171\u4eab\u53d8\u91cf\u4e14\u81f3\u5c11\u6709 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[121],"tags":[],"class_list":["post-676","post","type-post","status-publish","format-standard","hentry","category-golang"],"_links":{"self":[{"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/posts\/676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/beijian99.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=676"}],"version-history":[{"count":1,"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/posts\/676\/revisions"}],"predecessor-version":[{"id":677,"href":"https:\/\/beijian99.top\/index.php?rest_route=\/wp\/v2\/posts\/676\/revisions\/677"}],"wp:attachment":[{"href":"https:\/\/beijian99.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/beijian99.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/beijian99.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}