{"id":206638,"date":"2025-06-12T09:30:21","date_gmt":"2025-06-12T01:30:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206638\/"},"modified":"2025-06-12T09:30:21","modified_gmt":"2025-06-12T01:30:21","slug":"go-%e8%af%ad%e8%a8%80%e4%b8%ad%e6%97%a0%e7%bc%93%e5%86%b2-channel-%e5%a6%82%e4%bd%95%e5%bc%95%e5%8f%91%e6%ad%bb%e9%94%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206638\/","title":{"rendered":"Go \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f"},"content":{"rendered":"<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241117\/17318534886739fcb0eef8f.jpg\" class=\"aligncenter\">,<br \/>\n<strong>\u65e0\u7f13\u51b2 channel \u5f15\u53d1\u7684 go \u8bed\u8a00\u6b7b\u9501<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u65e0\u7f13\u51b2channel\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684 channel\uff0c\u5b83\u5728\u4f7f\u7528\u524d\u5fc5\u987b\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5426\u5219\u4f1a\u5f15\u53d1\u9519\u8bef\u3002\u4e00\u4e2a\u5e38\u89c1\u7684\u9519\u8bef\u573a\u666f\u662f\uff0c\u5728\u65e0\u7f13\u51b2 channel \u6ca1\u6709\u88ab\u53d6\u6570\u636e\u4e4b\u524d\uff0c\u5b83\u4f1a\u4e00\u76f4\u963b\u585e\u3002,\u4ee5\u4e0b\u662f\u4e00\u4e2a\u6f14\u793a\u8be5\u95ee\u9898\u7684\u793a\u4f8b\u4ee3\u7801\uff1a,\u5f53\u8fd0\u884c\u6b64\u4ee3\u7801\u65f6\uff0c\u5b83\u4f1a\u5f15\u53d1\u4ee5\u4e0b\u6b7b\u9501\u9519\u8bef\uff1a,\u8fd9\u662f\u56e0\u4e3a\u5728\u533f\u540d goroutine \u8bfb\u53d6\u6570\u636e\u4e4b\u524d\uff0c\u4e3b goroutine \u5c1d\u8bd5\u5c06\u6570\u636e\u5199\u5165\u65e0\u7f13\u51b2 channel\uff0c\u5bfc\u81f4\u6b7b\u9501\u3002\u65e0\u7f13\u51b2 channel \u4f1a\u4e00\u76f4\u963b\u585e\uff0c\u76f4\u5230 channel \u4e2d\u7684\u6570\u636e\u88ab\u8bfb\u53d6\uff0c\u56e0\u6b64\u4e3b goroutine \u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u5bfc\u81f4\u6574\u4e2a\u7a0b\u5e8f\u6b7b\u9501\u3002,\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ea\u9700\u5c06 channel \u5199\u5165\u64cd\u4f5c\u653e\u5728\u533f\u540d goroutine \u4e4b\u540e\u5373\u53ef\u3002\u8fd9\u6837\uff0c\u6570\u636e\u53ef\u4ee5\u7acb\u5373\u88ab\u8bfb\u53d6\uff0c\u89e3\u9664\u963b\u585e\u5e76\u5728\u6ca1\u6709\u6b7b\u9501\u7684\u60c5\u51b5\u4e0b\u7ee7\u7eed\u6267\u884c\u3002,\u66f4\u65b0\u540e\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a,\u4ee5\u4e0a\u5c31\u662f\u300aGo \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u65e0\u7f13\u51b2 channel \u5f15\u53d1\u7684 go \u8bed\u8a00\u6b7b\u9501,\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\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 \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f<\/span><\/p>\n<h1>Go \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f<\/h1>\n<p><span>2024-11-17 22:25:04<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f\u300b<\/span>\u4e3b\u8981\u8bb2\u89e3\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6211\u4f1a\u5728GOLANG\u4e2d\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u7cfb\u5217\u6587\u7ae0\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u5e76\u79ef\u6781\u7559\u8a00\u5efa\u8bae\u3002\u4e0b\u9762\u5c31\u5148\u4e00\u8d77\u6765\u770b\u4e00\u4e0b\u672c\u7bc7\u6b63\u6587\u5185\u5bb9\u5427\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241117\/17318534886739fcb0eef8f.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u65e0\u7f13\u51b2 channel \u5f15\u53d1\u7684 go \u8bed\u8a00\u6b7b\u9501<\/strong><\/p>\n<p>\u5728 go \u8bed\u8a00\u4e2d\uff0c\u65e0\u7f13\u51b2channel\u662f\u4e00\u79cd\u7279\u6b8a\u7c7b\u578b\u7684 channel\uff0c\u5b83\u5728\u4f7f\u7528\u524d\u5fc5\u987b\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u5426\u5219\u4f1a\u5f15\u53d1\u9519\u8bef\u3002\u4e00\u4e2a\u5e38\u89c1\u7684\u9519\u8bef\u573a\u666f\u662f\uff0c\u5728\u65e0\u7f13\u51b2 channel \u6ca1\u6709\u88ab\u53d6\u6570\u636e\u4e4b\u524d\uff0c\u5b83\u4f1a\u4e00\u76f4\u963b\u585e\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u6f14\u793a\u8be5\u95ee\u9898\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>package main\n\nimport \"fmt\"\n\nfunc main() {\n    \/\/ \u521d\u59cb\u5316\u65e0\u7f13\u51b2 channel\n    ch := make(chan int)\n\n    \/\/ \u5b9a\u4e49\u533f\u540d goroutine\n    go func() {\n        fmt.println(&lt;-ch)\n    }()\n\n    \/\/ \u6b7b\u9501\uff1achannel \u5199\u5165\u64cd\u4f5c\u88ab\u963b\u585e\uff0c\u76f4\u5230 channel \u88ab\u8bfb\n    ch &lt;- 1\n}<\/pre>\n<p>\u5f53\u8fd0\u884c\u6b64\u4ee3\u7801\u65f6\uff0c\u5b83\u4f1a\u5f15\u53d1\u4ee5\u4e0b\u6b7b\u9501\u9519\u8bef\uff1a<\/p>\n<pre>fatal error: all goroutines are asleep - deadlock!<\/pre>\n<p>\u8fd9\u662f\u56e0\u4e3a\u5728\u533f\u540d goroutine \u8bfb\u53d6\u6570\u636e\u4e4b\u524d\uff0c\u4e3b goroutine \u5c1d\u8bd5\u5c06\u6570\u636e\u5199\u5165\u65e0\u7f13\u51b2 channel\uff0c\u5bfc\u81f4\u6b7b\u9501\u3002\u65e0\u7f13\u51b2 channel \u4f1a\u4e00\u76f4\u963b\u585e\uff0c\u76f4\u5230 channel \u4e2d\u7684\u6570\u636e\u88ab\u8bfb\u53d6\uff0c\u56e0\u6b64\u4e3b goroutine \u65e0\u6cd5\u7ee7\u7eed\u6267\u884c\uff0c\u5bfc\u81f4\u6574\u4e2a\u7a0b\u5e8f\u6b7b\u9501\u3002<\/p>\n<p>\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ea\u9700\u5c06 channel \u5199\u5165\u64cd\u4f5c\u653e\u5728\u533f\u540d goroutine \u4e4b\u540e\u5373\u53ef\u3002\u8fd9\u6837\uff0c\u6570\u636e\u53ef\u4ee5\u7acb\u5373\u88ab\u8bfb\u53d6\uff0c\u89e3\u9664\u963b\u585e\u5e76\u5728\u6ca1\u6709\u6b7b\u9501\u7684\u60c5\u51b5\u4e0b\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<p>\u66f4\u65b0\u540e\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>package main\n\nimport \"fmt\"\n\nfunc main() {\n    \/\/ \u521d\u59cb\u5316\u65e0\u7f13\u51b2 channel\n    ch := make(chan int)\n\n    \/\/ \u5b9a\u4e49\u533f\u540d goroutine\n    go func() {\n        fmt.Println(&lt;-ch)\n    }()\n\n    \/\/ \u5199\u5165 channel\uff1a\u73b0\u5728\u4e0d\u4f1a\u6b7b\u9501\n    ch &lt;- 1\n}<\/pre>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aGo \u8bed\u8a00\u4e2d\u65e0\u7f13\u51b2 Channel \u5982\u4f55\u5f15\u53d1\u6b7b\u9501\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u7535\u8111\u4e3b\u673a\u6545\u969c\u5927\u5168\uff1a\u5e38\u89c1\u6545\u969c\u53ca\u89e3\u51b3\u65b9\u6cd5\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Java \u63a5\u53e3\u662f\u5982\u4f55\u589e\u5f3a\u5176\u529f\u80fd\u7684\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u52aa\u529b\u5b66\u4e60\u5427\uff01\u672c\u6587 \u300a&#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-206638","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206638","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=206638"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206638\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}