{"id":44826,"date":"2023-12-03T14:54:02","date_gmt":"2023-01-11T12:58:10","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44826-2\/"},"modified":"2024-05-04T11:58:37","modified_gmt":"2024-05-04T03:58:37","slug":"44826-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44826-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u3010Golang\u3011\u30b4\u30eb\u30fc\u30c1\u30f3\uff08\u4e26\u884c\u51e6\u7406\uff09<\/h1>\n<p>Golang\u306e\u57fa\u790e\u5b66\u7fd2\u301cWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u4f5c\u6210\u307e\u3067\u306e\u5b66\u7fd2\u3092\u7d42\u3048\u305f\u306e\u3067\u3001\u5fa9\u7fd2\u3092\u517c\u306d\u3066\u307e\u3068\u3081\u3066\u3044\u304f\u3002 \u57fa\u790e\u301c\u5fdc\u7528\u307e\u3067\u3002<\/p>\n<pre class=\"post-pre\"><code>package main\r\n\/\/goroutine\u3068sync.WaitGroup\r\n\/\/goroutin\u306e\u57fa\u790e\r\n\r\n\/\/\u8efd\u91cf\u306e\u30b9\u30ec\u30c3\u30c9 \u4e26\u5217\u51e6\u7406\u306e\u3053\u3068\r\n\/\/\u6697\u9ed9\u7684\u306bGo\u306f\u3084\u3063\u3066\u304f\u308c\u308b\u305f\u3081\u3001\u4ed6\u306e\u8a00\u8a9e\u307b\u3069\u6df1\u3044\u77e5\u8b58\u304c\u306a\u304f\u3066\u3082\r\n\/\/\u52dd\u624b\u306b\u3084\u3063\u3066\u304f\u308c\u308b\r\n\r\nimport (\r\n    \"fmt\"\r\n    \"sync\"\r\n    \"time\"\r\n    \"runtime\"\r\n)\r\n\r\n\r\n\/\/\u4e26\u5217\u51e6\u7406\r\n\/\/3\r\n\/\/\u5f15\u6570\u3067\u30dd\u30a4\u30f3\u30bf\u3092\u5ba3\u8a00\r\nfunc goroutin(wg *sync.WaitGroup){\r\n    \/\/3\r\n    \/\/wg\u3092\u7d42\u4e86\u3059\u308b\r\n    defer wg.Done()\r\n    for i := 0; i &lt; 5; i++ {\r\n        time.Sleep(100 * time.Millisecond)\r\n        fmt.Println(i)\r\n    }\r\n}\r\n\/*\r\nwg.done\u304c\u7121\u304b\u3063\u305f\u308a\u3001wg.Add(1)\u304c\u8907\u6570\u3042\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002\r\n*\/\r\n\r\n\r\n\r\n\/\/1\r\n\/\/\u901a\u5e38\u306e\u51e6\u7406\r\nfunc normal(){\r\n    for i := 1; i &lt; 5; i++ {\r\n        \/\/1\u79d2\u5f85\u3064\r\n        time.Sleep(1000 * time.Millisecond)\r\n        fmt.Println(i)\r\n    }\r\n}\r\n\r\nfunc main() {\r\n    \/*\r\n    \/\/1\r\n    \/\/\u901a\u5e38\u306e\u51e6\u7406\r\n    normal()\r\n    \/\/2\r\n    \/\/\u95a2\u6570\u306e\u524d\u306b go \u3092\u66f8\u304f\u3060\u3051\u3067\u4e26\u5217\u5316\u3067\u304d\u308b\u3002\r\n    \/\/\u95a2\u6570\u5185\u306etime.sleep\u3092\u6d88\u3059\u3068\u3001\u4e26\u5217\u51e6\u7406\u306e\u30b9\u30ec\u30c3\u30c9\u751f\u6210\u4e2d\u306b\u30eb\u30fc\u30d7\u304c\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\u305f\u3081\u3001\r\n    \/\/normal\u304c\u7d42\u308f\u3063\u305f\u3089\u3001\u7d42\u4e86\u3057\u3066\u3057\u307e\u3046\u70ba\u3001goroutin\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002\r\n    \/\/time.sleep(2000 * time.Millisecond)\u3067\u6642\u9593\u3092\u958b\u3051\u308b\u3068\u3001\u5b9f\u884c\u3092\u78ba\u8a8d\u3067\u304d\u308b\u3002\r\n    go goroutin()\r\n    go goroutin()\r\n    *\/\r\n\r\n    \/\/3\r\n    \/\/\u4e0a\u8a18\u3092\u9632\u3050\r\n    \/\/sync.WaitGroup\u3092\u5ba3\u8a00\r\n    var wg sync.WaitGroup\r\n\r\n    \/\/\u4e26\u5217\u51e6\u7406\u304c\uff11\u3064\u3042\u308b\u3053\u3068\u3092\u8a2d\u5b9a\u3059\u308b\u3002\r\n    wg.Add(2)\r\n\r\n    \/\/\u5f15\u6570\u3067wg\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3059\r\n    go goroutin(&amp;wg)\r\n    go goroutin(&amp;wg)\r\n\r\n    \/\/NumCPU Go\u30e9\u30f3\u30bf\u30a4\u30e0\u304c\u52d5\u4f5c\u3059\u308b\u74b0\u5883\u306eCPU\u3092\u8868\u3059\u3002\u4f7f\u7528\u3067\u304d\u308bCPU\u306e\u30b3\u30a2\u6570\u3002\r\n    fmt.Printf(\"CPU: %d\\n\", runtime.NumCPU())\r\n    \/\/NumGoroutin Go\u306e\u30e9\u30f3\u30bf\u30a4\u30e0\u4e0a\u3067\u52d5\u4f5c\u3057\u3066\u3044\u308b\u30b4\u30eb\u30fc\u30c1\u30f3\u306e\u6570\u3092\u8868\u3059\r\n    fmt.Printf(\"NumGoroutin: %d\\n\", runtime.NumGoroutine())\r\n    \/\/Version Go\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\r\n    fmt.Printf(\"Version: %s\\n\", runtime.Version())\r\n\r\n    \/\/\u901a\u5e38\r\n    normal()\r\n\r\n    \/\/wg,Done\u304c\u884c\u308f\u308c\u308b\u307e\u3067\u3001\u5f85\u3063\u3066\u304f\u308c\u308b\r\n    wg.Wait()\r\n\r\n}\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u3010Golang\u3011\u30b4\u30eb\u30fc\u30c1\u30f3\uff08\u4e26\u884c\u51e6\u7406\uff09 Golang\u306e\u57fa\u790e\u5b66\u7fd2\u301cWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u4f5c\u6210\u307e\u3067\u306e\u5b66\u7fd2\u3092\u7d42\u3048\u305f\u306e [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44826","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) - 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