{"id":206988,"date":"2025-07-08T09:09:19","date_gmt":"2025-07-08T01:09:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206988\/"},"modified":"2025-07-08T09:09:19","modified_gmt":"2025-07-08T01:09:19","slug":"%e6%98%af%e5%90%a6%e4%bf%9d%e8%af%81%e5%85%88%e5%9c%a8%e9%80%9a%e9%81%93%e4%b8%8a%e6%8c%82%e8%b5%b7%e7%9a%84-goroutine-%e6%9c%80%e7%bb%88%e4%bc%9a%e5%85%88%e8%8e%b7%e5%8f%96%e5%88%b0%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206988\/","title":{"rendered":"\u662f\u5426\u4fdd\u8bc1\u5148\u5728\u901a\u9053\u4e0a\u6302\u8d77\u7684 goroutine \u6700\u7ec8\u4f1a\u5148\u83b7\u53d6\u5230\u6570\u636e\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u662f\u5426\u4fdd\u8bc1\u5148\u5728\u901a\u9053\u4e0a\u6302\u8d77\u7684 goroutine \u6700\u7ec8\u4f1a\u5148\u83b7\u53d6\u5230\u6570\u636e\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-19 11:51:24<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u662f\u5426\u4fdd\u8bc1\u5148\u5728\u901a\u9053\u4e0a\u6302\u8d77\u7684 goroutine \u6700\u7ec8\u4f1a\u5148\u83b7\u53d6\u5230\u6570\u636e\uff1f\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60Golang<\/span>\uff0c\u6216\u8005\u662f\u5bf9Golang<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u5728\u4e0b\u9762\u7684\u4ee3\u7801\u4e2d\uff0cgo\u8fd0\u884c\u65f6\u662f\u5426\u4fdd\u8bc1\u6211\u5728\u7b2c16\u884c\u542f\u52a8\u7684goroutine\u603b\u662f\u9996\u5148\u83b7\u53d6\u6570\u636e\uff0c\u800c\u6211\u5728\u7b2c20\u884c\u542f\u52a8\u7684goroutine\u6c38\u8fdc\u6ca1\u6709\u673a\u4f1a\u83b7\u53d6\u6570\u636e\uff1f\u6216\u8005\u8bf4\u662f\u4e0d\u53ef\u9884\u6d4b\u7684\uff1f\u8bf7\u53c2\u9605\u4ee3\u7801\uff1asnippet: go \u6f14\u793a<\/p>\n

package main\n\nimport (\n    \"time\"\n    \"fmt\"\n)\n\nfunc g(c chan int) {\n    v, ok := <-c\n    fmt.Println(\">>>\", v, ok)\n}\n\nfunc main() {\n    c := make(chan int)\n    \n    \/\/ Line 16\n    go g(c)\n    \n    time.Sleep(1 * time.Second)\n    \n    \/\/ Line 20\n    go g(c)\n    \n    c <- 233\n    close(c)\n    \n    time.Sleep(1 * time.Second)\n}<\/pre>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u5982\u679c\u60a8\u5e0c\u671b\u6d88\u606f\u4fdd\u6301\u987a\u5e8f\uff0c\u5176\u4e2d\u4e00\u4e2a\u9009\u9879\u662f\u4e3a\u6bcf\u4e2a goroutine \u521b\u5efa\u901a\u9053\u3002\u5c0f\u4f8b\u5b50\uff1a<\/p>\n
package main\n\nimport \"fmt\"\n\nfunc main() {\n    channels := make([]chan int, 4)\n    for i := range channels {\n        channels[i] = make(chan int)\n        go func(i int) {\n            channels[i] <- (<-channels[i] * 2) \/\/ parentheses are just for readability\n        }(i)\n    }\n\n    for i, ch := range channels {\n        ch <- i\n    }\n\n    for _, ch := range channels {\n        fmt.println(<-ch)\n    }\n}\n<\/pre>\n
\u8fd9\u53ef\u9760\u5730\u8f93\u51fa\uff1a<\/p>\n
0\n2\n4\n6<\/pre>\n
\u4ee5\u4e0a\u5c31\u662f\u300a\u662f\u5426\u4fdd\u8bc1\u5148\u5728\u901a\u9053\u4e0a\u6302\u8d77\u7684 goroutine \u6700\u7ec8\u4f1a\u5148\u83b7\u53d6\u5230\u6570\u636e\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/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-206988","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206988","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=206988"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206988\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}