{"id":57836,"date":"2024-10-10T21:33:09","date_gmt":"2024-10-10T13:33:09","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57836\/"},"modified":"2024-10-10T21:33:09","modified_gmt":"2024-10-10T13:33:09","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e4%b8%a6%e7%99%bc%e6%89%93%e5%8d%b0%ef%bc%88%e5%80%9f%e5%8a%a9%e9%80%9a%e9%81%93%e5%af%a6%e7%8f%be%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57836\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00\u4e26\u767c\u6253\u5370\uff08\u501f\u52a9\u901a\u9053\u5be6\u73fe\uff09"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80%e4%b8%a6%e7%99%bc%e6%89%93%e5%8d%b0%ef%bc%88%e5%80%9f%e5%8a%a9%e9%80%9a%e9%81%93%e5%af%a6%e7%8f%be%ef%bc%89-mKOVpENZZq\">GO\u6559\u7a0b: Go \u8a9e\u8a00\u4e26\u767c\u6253\u5370\uff08\u501f\u52a9\u901a\u9053\u5be6\u73fe\uff09<\/h1>\n<p>Go \u8a9e\u8a00\uff0c\u4f5c\u70ba\u4e00\u7a2e\u73fe\u4ee3\u7de8\u7a0b\u8a9e\u8a00\uff0c\u4ee5\u5176\u7c21\u6f54\u7684\u8a9e\u6cd5\u548c\u5f37\u5927\u7684\u4e26\u767c\u652f\u6301\u800c\u805e\u540d\u3002\u4e26\u767c\u662f\u6307\u540c\u6642\u57f7\u884c\u591a\u500b\u4efb\u52d9\u7684\u80fd\u529b\uff0c\u9019\u5728\u7576\u4eca\u7684\u8a08\u7b97\u74b0\u5883\u4e2d\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 Go \u8a9e\u8a00\u4e2d\u7684\u901a\u9053\uff08Channel\uff09\u4f86\u5be6\u73fe\u4e26\u767c\u6253\u5370\u7684\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e9%80%9a%e9%81%93%ef%bc%9f-mKOVpENZZq\">\u4ec0\u9ebc\u662f\u901a\u9053\uff1f<\/h2>\n<p>\u901a\u9053\u662f Go \u8a9e\u8a00\u4e2d\u7528\u65bc\u4e0d\u540c goroutine \u4e4b\u9593\u901a\u4fe1\u7684\u4e3b\u8981\u5de5\u5177\u3002\u5b83\u5011\u5141\u8a31\u4e00\u500b goroutine \u5c07\u6578\u64da\u767c\u9001\u5230\u53e6\u4e00\u500b goroutine\uff0c\u5f9e\u800c\u5be6\u73fe\u6578\u64da\u7684\u5b89\u5168\u50b3\u905e\u3002\u901a\u9053\u7684\u4f7f\u7528\u53ef\u4ee5\u6709\u6548\u907f\u514d\u5171\u4eab\u5167\u5b58\u7684\u554f\u984c\uff0c\u4e26\u7c21\u5316\u4e26\u767c\u7de8\u7a0b\u7684\u8907\u96dc\u6027\u3002<\/p>\n<h2 id=\"%e5%9f%ba%e6%9c%ac%e7%9a%84%e9%80%9a%e9%81%93%e4%bd%bf%e7%94%a8-mKOVpENZZq\">\u57fa\u672c\u7684\u901a\u9053\u4f7f\u7528<\/h2>\n<p>\u5728 Go \u8a9e\u8a00\u4e2d\uff0c\u901a\u9053\u7684\u5275\u5efa\u548c\u4f7f\u7528\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u6574\u6578\u985e\u578b\u7684\u901a\u9053\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>ch := make(chan int)<\/code><\/pre>\n<p>\u9019\u884c\u4ee3\u78bc\u5275\u5efa\u4e86\u4e00\u500b\u6574\u6578\u985e\u578b\u7684\u901a\u9053\uff0c\u63a5\u4e0b\u4f86\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u901a\u9053\u4f86\u767c\u9001\u548c\u63a5\u6536\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%b8%a6%e7%99%bc%e6%89%93%e5%8d%b0%e7%9a%84%e5%af%a6%e7%8f%be-mKOVpENZZq\">\u4e26\u767c\u6253\u5370\u7684\u5be6\u73fe<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u901a\u904e\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\u4f86\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u901a\u9053\u5be6\u73fe\u4e26\u767c\u6253\u5370\u3002\u4ee5\u4e0b\u4ee3\u78bc\u5c07\u5275\u5efa\u591a\u500b goroutine\uff0c\u6bcf\u500b goroutine \u5c07\u6253\u5370\u4e00\u500b\u6578\u5b57\u3002<\/p>\n<pre><code>package main\n\nimport (\n    \"fmt\"\n    \"sync\"\n)\n\nfunc printNumbers(wg *sync.WaitGroup, ch chan int) {\n    defer wg.Done()\n    for num := range ch {\n        fmt.Println(num)\n    }\n}\n\nfunc main() {\n    var wg sync.WaitGroup\n    ch := make(chan int)\n\n    \/\/ \u555f\u52d5\u4e00\u500b goroutine \u4f86\u6253\u5370\u6578\u5b57\n    wg.Add(1)\n    go printNumbers(&amp;wg, ch)\n\n    \/\/ \u767c\u9001\u6578\u5b57\u5230\u901a\u9053\n    for i := 1; i &lt;= 10; i++ {\n        ch &lt;- i\n    }\n    close(ch) \/\/ \u95dc\u9589\u901a\u9053\u4ee5\u7d50\u675f goroutine\n\n    wg.Wait() \/\/ \u7b49\u5f85\u6240\u6709 goroutine \u5b8c\u6210\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5275\u5efa\u4e86\u4e00\u500b\u6574\u6578\u901a\u9053 `ch`\uff0c\u7136\u5f8c\u555f\u52d5\u4e86\u4e00\u500b goroutine \u4f86\u8655\u7406\u6253\u5370\u4efb\u52d9\u3002\u4e3b\u51fd\u6578\u4e2d\uff0c\u6211\u5011\u5c07\u6578\u5b57 1 \u5230 10 \u767c\u9001\u5230\u901a\u9053\u4e2d\uff0c\u6700\u5f8c\u95dc\u9589\u901a\u9053\u4ee5\u901a\u77e5 goroutine \u7d50\u675f\u3002<\/p>\n<h2 id=\"%e4%bb%a3%e7%a2%bc%e8%a7%a3%e6%9e%90-mKOVpENZZq\">\u4ee3\u78bc\u89e3\u6790<\/h2>\n<ul>\n<li><strong>sync.WaitGroup\uff1a<\/strong>\u7528\u65bc\u7b49\u5f85\u4e00\u7d44 goroutine \u5b8c\u6210\u3002<\/li>\n<li><strong>defer wg.Done():<\/strong> \u5728 goroutine \u7d50\u675f\u6642\u8abf\u7528\uff0c\u544a\u8a34 WaitGroup \u4e00\u500b goroutine \u5df2\u7d93\u5b8c\u6210\u3002<\/li>\n<li><strong>range ch:<\/strong> \u7528\u65bc\u5f9e\u901a\u9053\u4e2d\u63a5\u6536\u6578\u64da\uff0c\u76f4\u5230\u901a\u9053\u88ab\u95dc\u9589\u3002<\/li>\n<li><strong>close(ch):<\/strong> \u95dc\u9589\u901a\u9053\uff0c\u9019\u6a23\u63a5\u6536\u65b9\u5c31\u77e5\u9053\u6c92\u6709\u66f4\u591a\u7684\u6578\u64da\u6703\u88ab\u767c\u9001\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mKOVpENZZq\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4f7f\u7528 Go \u8a9e\u8a00\u7684\u901a\u9053\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u4e26\u767c\u6253\u5370\u7684\u529f\u80fd\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u7a0b\u5e8f\u7684\u6548\u7387\uff0c\u9084\u7c21\u5316\u4e86\u4e26\u767c\u7de8\u7a0b\u7684\u8907\u96dc\u6027\u3002Go \u8a9e\u8a00\u7684\u8a2d\u8a08\u4f7f\u5f97\u4e26\u767c\u7de8\u7a0b\u8b8a\u5f97\u66f4\u52a0\u76f4\u89c0\u548c\u6613\u65bc\u7ba1\u7406\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528 Go \u8a9e\u8a00\u7684\u901a\u9053\u5be6\u73fe\u4e26\u767c\u6253\u5370\uff0c\u638c\u63e1\u57fa\u672c\u6982\u5ff5\u8207\u5be6\u7528\u7bc4\u4f8b\uff0c\u63d0\u5347\u4f60\u7684\u7de8\u7a0b\u6280\u80fd\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57836","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57836","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=57836"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57836\/revisions"}],"predecessor-version":[{"id":57837,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57836\/revisions\/57837"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}