{"id":57920,"date":"2024-10-10T22:15:21","date_gmt":"2024-10-10T14:15:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57920\/"},"modified":"2024-10-10T22:15:21","modified_gmt":"2024-10-10T14:15:21","slug":"go%e6%95%99%e7%a8%8b-%e4%b8%a6%e7%99%bc%e5%92%8c%e4%b8%a6%e8%a1%8c%e7%9a%84%e5%8d%80%e5%88%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57920\/","title":{"rendered":"GO\u6559\u7a0b: \u4e26\u767c\u548c\u4e26\u884c\u7684\u5340\u5225"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-%e4%b8%a6%e7%99%bc%e5%92%8c%e4%b8%a6%e8%a1%8c%e7%9a%84%e5%8d%80%e5%88%a5-KWldxtGxYJ\">GO\u6559\u7a0b: \u4e26\u767c\u548c\u4e26\u884c\u7684\u5340\u5225<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u4e26\u767c\uff08Concurrency\uff09\u548c\u4e26\u884c\uff08Parallelism\uff09\u662f\u5169\u500b\u7d93\u5e38\u88ab\u63d0\u53ca\u7684\u6982\u5ff5\u3002\u96d6\u7136\u9019\u5169\u8005\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u4ee5\u4e92\u63db\u4f7f\u7528\uff0c\u4f46\u5b83\u5011\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u6709\u8457\u660e\u986f\u7684\u5340\u5225\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u5169\u500b\u6982\u5ff5\uff0c\u4e26\u63d0\u4f9b\u5728Go\u8a9e\u8a00\u4e2d\u5be6\u73fe\u5b83\u5011\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%a6%e7%99%bc%ef%bc%9f-KWldxtGxYJ\">\u4ec0\u9ebc\u662f\u4e26\u767c\uff1f<\/h2>\n<p>\u4e26\u767c\u662f\u6307\u5728\u540c\u4e00\u6642\u9593\u6bb5\u5167\u8655\u7406\u591a\u500b\u4efb\u52d9\u7684\u80fd\u529b\u3002\u9019\u4e26\u4e0d\u610f\u5473\u8457\u9019\u4e9b\u4efb\u52d9\u5fc5\u9808\u540c\u6642\u57f7\u884c\uff0c\u800c\u662f\u53ef\u4ee5\u5728\u4e00\u500b\u55ae\u4e00\u7684\u8655\u7406\u5668\u4e0a\u4ea4\u66ff\u9032\u884c\u3002\u4e26\u767c\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u7cfb\u7d71\u7684\u6548\u7387\uff0c\u7279\u5225\u662f\u5728I\/O\u5bc6\u96c6\u578b\u7684\u61c9\u7528\u4e2d\u3002<\/p>\n<h3 id=\"%e4%b8%a6%e7%99%bc%e7%9a%84%e7%89%b9%e9%bb%9e-KWldxtGxYJ\">\u4e26\u767c\u7684\u7279\u9ede<\/h3>\n<ul>\n<li>\u4efb\u52d9\u53ef\u4ee5\u5728\u540c\u4e00\u6642\u9593\u6bb5\u5167\u4ea4\u66ff\u57f7\u884c\u3002<\/li>\n<li>\u901a\u5e38\u6d89\u53ca\u591a\u500b\u57f7\u884c\u7dd2\u6216\u5354\u7a0b\u3002<\/li>\n<li>\u9069\u5408\u8655\u7406I\/O\u5bc6\u96c6\u578b\u4efb\u52d9\uff0c\u5982\u7db2\u7d61\u8acb\u6c42\u6216\u6587\u4ef6\u8b80\u5beb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%b8%a6%e8%a1%8c%ef%bc%9f-KWldxtGxYJ\">\u4ec0\u9ebc\u662f\u4e26\u884c\uff1f<\/h2>\n<p>\u4e26\u884c\u5247\u662f\u6307\u540c\u6642\u57f7\u884c\u591a\u500b\u4efb\u52d9\u3002\u9019\u901a\u5e38\u9700\u8981\u591a\u500b\u8655\u7406\u5668\u6216\u6838\u5fc3\u4f86\u5be6\u73fe\uff0c\u56e0\u70ba\u6bcf\u500b\u4efb\u52d9\u90fd\u5728\u7368\u7acb\u7684\u8655\u7406\u55ae\u5143\u4e0a\u904b\u884c\u3002\u4e26\u884c\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u8a08\u7b97\u5bc6\u96c6\u578b\u4efb\u52d9\u7684\u6027\u80fd\u3002<\/p>\n<h3 id=\"%e4%b8%a6%e8%a1%8c%e7%9a%84%e7%89%b9%e9%bb%9e-KWldxtGxYJ\">\u4e26\u884c\u7684\u7279\u9ede<\/h3>\n<ul>\n<li>\u4efb\u52d9\u5728\u540c\u4e00\u6642\u9593\u5167\u540c\u6642\u57f7\u884c\u3002<\/li>\n<li>\u901a\u5e38\u9700\u8981\u591a\u500b\u8655\u7406\u5668\u6216\u6838\u5fc3\u3002<\/li>\n<li>\u9069\u5408\u8655\u7406\u8a08\u7b97\u5bc6\u96c6\u578b\u4efb\u52d9\uff0c\u5982\u6578\u64da\u8655\u7406\u6216\u79d1\u5b78\u8a08\u7b97\u3002<\/li>\n<\/ul>\n<h2 id=\"go%e8%aa%9e%e8%a8%80%e4%b8%ad%e7%9a%84%e4%b8%a6%e7%99%bc%e8%88%87%e4%b8%a6%e8%a1%8c-KWldxtGxYJ\">Go\u8a9e\u8a00\u4e2d\u7684\u4e26\u767c\u8207\u4e26\u884c<\/h2>\n<p>Go\u8a9e\u8a00\u4ee5\u5176\u5167\u5efa\u7684\u4e26\u767c\u652f\u6301\u800c\u805e\u540d\uff0c\u7279\u5225\u662f\u901a\u904eGoroutines\u548cChannels\u4f86\u5be6\u73fe\u3002Goroutines\u662fGo\u7684\u8f15\u91cf\u7d1a\u57f7\u884c\u55ae\u5143\uff0c\u5141\u8a31\u958b\u767c\u8005\u8f15\u9b06\u5730\u5be6\u73fe\u4e26\u767c\u3002<\/p>\n<h3 id=\"goroutines%e7%9a%84%e4%bd%bf%e7%94%a8-KWldxtGxYJ\">Goroutines\u7684\u4f7f\u7528<\/h3>\n<pre><code>package main\n\nimport (\n    \"fmt\"\n    \"time\"\n)\n\nfunc task(id int) {\n    fmt.Printf(\"\u4efb\u52d9 %d \u958b\u59cbn\", id)\n    time.Sleep(2 * time.Second)\n    fmt.Printf(\"\u4efb\u52d9 %d \u5b8c\u6210n\", id)\n}\n\nfunc main() {\n    for i := 1; i &lt;= 5; i++ {\n        go task(i) \/\/ \u555f\u52d5Goroutine\n    }\n    time.Sleep(5 * time.Second) \/\/ \u7b49\u5f85\u6240\u6709Goroutines\u5b8c\u6210\n}\n<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u555f\u52d5\u4e86\u4e94\u500bGoroutines\uff0c\u6bcf\u500bGoroutine\u90fd\u57f7\u884c\u4e00\u500b\u4efb\u52d9\u3002\u9019\u4e9b\u4efb\u52d9\u662f\u4e26\u767c\u57f7\u884c\u7684\uff0c\u56e0\u70ba\u5b83\u5011\u53ef\u4ee5\u5728\u540c\u4e00\u6642\u9593\u6bb5\u5167\u4ea4\u66ff\u9032\u884c\u3002<\/p>\n<h3 id=\"%e4%b8%a6%e8%a1%8c%e7%9a%84%e5%af%a6%e7%8f%be-KWldxtGxYJ\">\u4e26\u884c\u7684\u5be6\u73fe<\/h3>\n<p>\u5728Go\u4e2d\uff0c\u4e26\u884c\u901a\u5e38\u4f9d\u8cf4\u65bc\u591a\u6838\u8655\u7406\u5668\u7684\u652f\u6301\u3002Go\u7684\u904b\u884c\u6642\u6703\u81ea\u52d5\u5c07Goroutines\u5206\u914d\u5230\u53ef\u7528\u7684\u8655\u7406\u5668\u6838\u5fc3\u4e0a\uff0c\u5f9e\u800c\u5be6\u73fe\u771f\u6b63\u7684\u4e26\u884c\u57f7\u884c\u3002<\/p>\n<pre><code>package main\n\nimport (\n    \"fmt\"\n    \"runtime\"\n    \"sync\"\n    \"time\"\n)\n\nfunc task(id int, wg *sync.WaitGroup) {\n    defer wg.Done()\n    fmt.Printf(\"\u4efb\u52d9 %d \u958b\u59cbn\", id)\n    time.Sleep(2 * time.Second)\n    fmt.Printf(\"\u4efb\u52d9 %d \u5b8c\u6210n\", id)\n}\n\nfunc main() {\n    var wg sync.WaitGroup\n    runtime.GOMAXPROCS(4) \/\/ \u8a2d\u7f6e\u4f7f\u7528\u7684\u6700\u5927\u8655\u7406\u5668\u6578\u91cf\n\n    for i := 1; i &lt;= 5; i++ {\n        wg.Add(1)\n        go task(i, &amp;wg) \/\/ \u555f\u52d5Goroutine\n    }\n    wg.Wait() \/\/ \u7b49\u5f85\u6240\u6709Goroutines\u5b8c\u6210\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86sync.WaitGroup\u4f86\u7b49\u5f85\u6240\u6709Goroutines\u5b8c\u6210\u3002\u901a\u904e\u8a2d\u7f6eruntime.GOMAXPROCS\uff0c\u6211\u5011\u53ef\u4ee5\u63a7\u5236Go\u904b\u884c\u6642\u4f7f\u7528\u7684\u6700\u5927\u8655\u7406\u5668\u6578\u91cf\uff0c\u5f9e\u800c\u5be6\u73fe\u4e26\u884c\u57f7\u884c\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-KWldxtGxYJ\">\u7e3d\u7d50<\/h2>\n<p>\u4e26\u767c\u548c\u4e26\u884c\u662f\u8edf\u9ad4\u958b\u767c\u4e2d\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u7406\u89e3\u5b83\u5011\u7684\u5340\u5225\u5c0d\u65bc\u958b\u767c\u9ad8\u6548\u7684\u61c9\u7528\u81f3\u95dc\u91cd\u8981\u3002\u5728Go\u8a9e\u8a00\u4e2d\uff0c\u901a\u904eGoroutines\u548cChannels\uff0c\u6211\u5011\u53ef\u4ee5\u8f15\u9b06\u5730\u5be6\u73fe\u4e26\u767c\uff0c\u800c\u5229\u7528\u591a\u6838\u8655\u7406\u5668\u7684\u80fd\u529b\u5247\u53ef\u4ee5\u5be6\u73fe\u771f\u6b63\u7684\u4e26\u884c\u3002\u9019\u4e9b\u7279\u6027\u4f7f\u5f97Go\u6210\u70ba\u8655\u7406\u9ad8\u6548\u80fd\u61c9\u7528\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u96f2\u74b0\u5883\u4e2d\u904b\u884cGo\u61c9\u7528\u611f\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u8a0a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3GO\u6559\u7a0b\u4e2d\u4e26\u767c\u8207\u4e26\u884c\u7684\u5340\u5225\uff0c\u638c\u63e1\u9019\u5169\u8005\u7684\u6982\u5ff5\u53ca\u5176\u5728\u7a0b\u5f0f\u8a2d\u8a08\u4e2d\u7684\u61c9\u7528\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-57920","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57920","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=57920"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57920\/revisions"}],"predecessor-version":[{"id":57921,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57920\/revisions\/57921"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}