{"id":206762,"date":"2025-06-12T08:04:25","date_gmt":"2025-06-12T00:04:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206762\/"},"modified":"2025-06-12T08:04:25","modified_gmt":"2025-06-12T00:04:25","slug":"go%e5%b9%b6%e5%8f%91%e7%bc%96%e7%a8%8b%e4%b8%ad%ef%bc%8cgoroutine%e4%bd%bf%e7%94%a8channel%e9%98%bb%e5%a1%9e%e6%89%a7%e8%a1%8c%e6%97%b6%e4%b8%ba%e4%bd%95%e4%bc%9a%e5%87%ba%e7%8e%b0%e8%be%93%e5%87%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206762\/","title":{"rendered":"Go\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f"},"content":{"rendered":"<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2aGOLANG\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aGo\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241122\/1732244814673ff54ebd8b5.jpg\" class=\"aligncenter\">,<br \/>\n<strong>goroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u53ef\u80fd\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931<\/strong>,\u5728go\u4e2d\u5b66\u4e60\u5e76\u53d1\u7f16\u7a0b\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230goroutine\u5728\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3agoroutine\u7684\u6267\u884c\u987a\u5e8f\u5e76\u4e0d\u80fd\u88ab\u4fdd\u8bc1\u3002,\u8003\u8651\u5982\u4e0b\u793a\u4f8b\u4ee3\u7801\uff1a,\u9884\u671f\u8f93\u51fa\u5e94\u6309\u987a\u5e8f\u4ece0\u52304\u6253\u5370\uff0c\u4f46\u5b9e\u9645\u6267\u884c\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\u3002\u8fd9\u662f\u56e0\u4e3a\uff1a,\u4e3a\u4e86\u907f\u514d\u8f93\u51fa\u7f3a\u5931\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a,\u4eca\u5929\u5173\u4e8e\u300aGo\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u4e3a\u6bcf\u4e2agoroutine\u6253\u5f00\u4e00\u4e2a\u72ec\u7acb\u7684channel\uff0c\u7136\u540e\u4f7f\u7528 select \u8bed\u53e5\u4ece\u8fd9\u4e9b channel \u4e2d\u8bfb\u53d6\u3002,\u4f7f\u7528sync.mutex\u6216\u5176\u4ed6\u540c\u6b65\u539f\u8bed\u6765\u5f3a\u5236\u6309\u987a\u5e8f\u6267\u884cgoroutine\u3002,channel\u53ea\u5141\u8bb8\u8f93\u51fa\u4e00\u4e2a\u503c\uff0c\u56e0\u6b64\u53ea\u7b49\u5f85\u6700\u540e\u4e00\u4e2agoroutine\uff08\u5373\u8f93\u51fa4\u7684goroutine\uff09\u5b8c\u6210\u3002,println\u51fd\u6570\u4f1a\u5bfc\u81f4goroutine\u5207\u6362\uff0c\u8fd9\u53ef\u80fd\u4f1a\u4e2d\u65ad\u5176\u4ed6\u6b63\u5728\u8fd0\u884c\u7684goroutine\u3002,goroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u53ef\u80fd\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931,\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2aGOLANG\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aGo\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>Go\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f<\/span><\/p>\n<h1>Go\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f<\/h1>\n<p><span>2024-11-22 11:07:10<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762GOLANG\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2aGOLANG\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aGo\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241122\/1732244814673ff54ebd8b5.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>goroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u53ef\u80fd\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931<\/strong><\/p>\n<p>\u5728go\u4e2d\u5b66\u4e60\u5e76\u53d1\u7f16\u7a0b\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230goroutine\u5728\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\u7684\u60c5\u51b5\u3002\u8fd9\u662f\u56e0\u4e3agoroutine\u7684\u6267\u884c\u987a\u5e8f\u5e76\u4e0d\u80fd\u88ab\u4fdd\u8bc1\u3002<\/p>\n<p>\u8003\u8651\u5982\u4e0b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"fmt\"\n    \"runtime\"\n    \"sync\"\n)\n\nfunc main() {\n    num1 := runtime.GOMAXPROCS(1)\n    num2 := runtime.GOMAXPROCS(1)\n    fmt.Println(\"num1:\", num1, \"num2:\", num2)\n    c := make(chan bool)\n    for j := 0; j &lt; 5; j++ {\n        go Go(c, j)\n    }\n    &lt;-c\n}\n\nfunc Go(c chan bool, index int) {\n    a := 1\n    for i := 0; i &lt; 100000000; i++ {\n        a += i\n    }\n    fmt.Println(index, a)\n    if index == 4 {\n        c &lt;- true\n    }\n}<\/pre>\n<p>\u9884\u671f\u8f93\u51fa\u5e94\u6309\u987a\u5e8f\u4ece0\u52304\u6253\u5370\uff0c\u4f46\u5b9e\u9645\u6267\u884c\u65f6\u53ef\u80fd\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\u3002\u8fd9\u662f\u56e0\u4e3a\uff1a<\/p>\n<ul>\n<li>println\u51fd\u6570\u4f1a\u5bfc\u81f4goroutine\u5207\u6362\uff0c\u8fd9\u53ef\u80fd\u4f1a\u4e2d\u65ad\u5176\u4ed6\u6b63\u5728\u8fd0\u884c\u7684goroutine\u3002<\/li>\n<li>channel\u53ea\u5141\u8bb8\u8f93\u51fa\u4e00\u4e2a\u503c\uff0c\u56e0\u6b64\u53ea\u7b49\u5f85\u6700\u540e\u4e00\u4e2agoroutine\uff08\u5373\u8f93\u51fa4\u7684goroutine\uff09\u5b8c\u6210\u3002<\/li>\n<\/ul>\n<p>\u4e3a\u4e86\u907f\u514d\u8f93\u51fa\u7f3a\u5931\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528sync.mutex\u6216\u5176\u4ed6\u540c\u6b65\u539f\u8bed\u6765\u5f3a\u5236\u6309\u987a\u5e8f\u6267\u884cgoroutine\u3002<\/li>\n<li>\u4e3a\u6bcf\u4e2agoroutine\u6253\u5f00\u4e00\u4e2a\u72ec\u7acb\u7684channel\uff0c\u7136\u540e\u4f7f\u7528 select \u8bed\u53e5\u4ece\u8fd9\u4e9b channel \u4e2d\u8bfb\u53d6\u3002<\/li>\n<\/ul>\n<p>\u4eca\u5929\u5173\u4e8e\u300aGo\u5e76\u53d1\u7f16\u7a0b\u4e2d\uff0cgoroutine\u4f7f\u7528channel\u963b\u585e\u6267\u884c\u65f6\u4e3a\u4f55\u4f1a\u51fa\u73b0\u8f93\u51fa\u7f3a\u5931\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\u591a\u6001\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u4f7f\u7528pymysql\u6267\u884cINSERT\u8bed\u53e5\uff0c\u6ca1\u6709\u62a5\u9519\u4f46\u6570\u636e\u672a\u63d2\u5165\u6570\u636e\u5e93\uff0c\u662f\u4ec0\u4e48\u539f\u56e0\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-206762","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206762","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=206762"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206762\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}