{"id":42867,"date":"2024-12-01T10:05:31","date_gmt":"2024-12-01T02:05:31","guid":{"rendered":"https:\/\/fwq.ai\/blog\/42867\/"},"modified":"2024-12-01T10:05:31","modified_gmt":"2024-12-01T02:05:31","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e8%bf%99%e9%87%8c%e6%9c%89%e9%80%9a%e9%81%93%e7%9a%84%e5%8f%af%e5%8f%98%e8%be%93%e5%87%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/42867\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa<\/span><\/p>\n

\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa<\/h1>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-26 20:54:36<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6765\u5230\u7c73\u4e91\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60Golang\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300a\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

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

\u6211\u6b63\u5728\u5c1d\u8bd5\u4ece\u8fd9\u91cc\u4fee\u6539\u4ee3\u7801\u3002\u6211\u521b\u5efa 5 \u4e2a\u901a\u9053\u5e76\u53d1\u9001\u6570\u636e 5 \u6b21\uff1a<\/p>\n

package main\nimport \"fmt\"\nfunc greet(c chan string) {\n    fmt.println(\"hello \" + <-c + \"!\")\n}\nfunc main() {\n    fmt.println(\"main() started\")\n    c := make(chan string)\n    for i:=0; i<5; i++ {\n        go greet(c)\n    }\n    c <- \"aaa\"\n    c <- \"bbb\"\n    c <- \"ccc\"\n    c <- \"ddd\"\n    c <- \"eee\"\n    fmt.println(\"main() stopped\")\n}<\/pre>\n
\u6211\u5e0c\u671b\u6253\u5370\u6240\u6709 5 \u4e2a\u5b57\u7b26\u4e32\u3002\u4f46\u662f\uff0c\u6211\u53d1\u73b0\u8f93\u51fa\u53ef\u53d8\u3002\u4e00\u4e9b\u8f93\u51fa\u662f\uff1a<\/p>\n
$ .\/rnchannel\nmain() started\nHello AAA!\nHello DDD!\nHello BBB!\nHello CCC!\nHello EEE!\nmain() stopped\n\n$ .\/rnchannel\nmain() started\nHello CCC!\nHello DDD!\nmain() stopped\n\n$ .\/rnchannel\nmain() started\nHello CCC!\nHello BBB!\nHello AAA!\nHello DDD!\nmain() stopped<\/pre>\n
\u4e3a\u4ec0\u4e48\u6253\u5370\u7684\u884c\u6570\u53ef\u53d8\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u3002\u5f53 main()<\/code> \u9000\u51fa\u65f6\uff0c\u6240\u6709 goroutine \u90fd\u4f1a\u88ab\u6740\u6b7b\u3002\u65e0\u6cd5\u4fdd\u8bc1\u60a8\u7684\u5176\u4ed6 goroutine \u4f1a\u5728\u6b64\u4e4b\u524d\u5b8c\u6210\uff0c\u8fd9\u5c31\u662f\u5e76\u53d1\u7684\u672c\u8d28\u3002\u4ee5\u4e0b\u662f\u4fee\u590d\u65b9\u6cd5\u3002<\/p>\n
\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u5bf9 greet<\/code> \u8fdb\u884c\u4e00\u4e9b\u66f4\u6539\u3002\u8ba9\u5176\u4f11\u7720\u4e00\u4f1a\u513f\uff0c\u4ee5\u4f7f\u95ee\u9898\u66f4\u52a0\u660e\u663e\u3002\u6211\u4eec\u8fd8\u5c06\u8ba9\u5b83\u63a5\u53d7\u5b57\u7b26\u4e32\u800c\u4e0d\u662f\u901a\u9053\uff0c\u7a0d\u540e\u6211\u4eec\u5c31\u4f1a\u660e\u767d\u539f\u56e0\u3002<\/p>\n
func greet(str string) {\n    time.sleep(100 * time.millisecond)\n    fmt.println(\"hello \" + str + \"!\")\n}<\/pre>\n
\u6211\u4eec\u4e0d\u9700\u8981\u521b\u5efa\u4e00\u5806 goroutine \u4ece\u901a\u9053\u8bfb\u53d6\u56fa\u5b9a\u6b21\u6570\u7684\u6570\u636e\uff0c\u800c\u662f\u9700\u8981\u4e00\u4e2a goroutine \u4ece\u901a\u9053\u8bfb\u53d6\u6570\u636e\u76f4\u5230\u8017\u5c3d\u3002\u4f7f\u7528  \u6700\u5bb9\u6613\u5b8c\u6210\u6b64\u64cd\u4f5c\u3002\u8fd9\u5145\u5206\u5229\u7528\u4e86\u6e20\u9053\u3002<\/p>\n
\u6211\u4eec\u8fd8\u9700\u8981\u4e00\u79cd\u65b9\u6cd5\u6765\u544a\u8bc9\u4e3b\u7a0b\u5e8f\u7b49\u5f85\u5faa\u73af\u5b8c\u6210\u3002 \u3002\u66f4\u590d\u6742\u7684\u540c\u6b65\u4f7f\u7528\u3002<\/p>\n
c := make(chan string, 2)\ndone := make(chan bool, 1)\ngo func() {\n    for str := range(c) {\n        greet(str)\n    }\n    done <- true\n}()<\/pre>\n
goroutine \u5c06\u4ece c<\/code> \u8bfb\u53d6\u6570\u636e\uff0c\u76f4\u5230\u5b83\u5173\u95ed\u3002\u7136\u540e\u5b83\u5c06\u53d1\u9001 true<\/code> \u5230\u901a\u9053 done<\/code>\u3002\u4e24\u8005\u90fd\u7ecf\u8fc7\u7f13\u51b2\uff0c\u4ee5\u907f\u514d\u7531\u4e8e\u963b\u585e\u7b49\u5f85\u8bfb\u53d6\u6216\u5199\u5165\u901a\u9053\u800c\u5bfc\u81f4\u6b7b\u9501\u3002<\/p>\n
\u56de\u5230main<\/code>\uff0c\u6211\u4eec\u5199\u5165\u901a\u9053\uff0c\u663e\u5f0f\u5173\u95ed\u5b83\uff0c\u7136\u540e\u7b49\u5f85\u4ecedone<\/code>\u8bfb\u53d6\u3002<\/p>\n
c <- \"aaa\"\n    c <- \"bbb\"\n    c <- \"ccc\"\n    c <- \"ddd\"\n    c <- \"eee\"\n    close(c)\n\n    <-done\n    fmt.println(\"main() stopped\")<\/pre>\n
<-done<\/code> \u5c06\u963b\u585e\uff0c\u76f4\u5230\u6709\u4e1c\u897f\u53ef\u8bfb\u3002\u8fd9\u4f7f\u5f97 goroutine \u80fd\u591f\u5b8c\u6210\u3002<\/p>\n
\u5e76\u5c06\u5b83\u4eec\u6574\u5408\u5728\u4e00\u8d77\u3002<\/p>\n
package main\nimport(\n    \"fmt\"\n    \"time\"\n)\nfunc greet(str string) {\n    time.Sleep(100 * time.Millisecond)\n    fmt.Println(\"Hello \" + str + \"!\")\n}\nfunc main() {\n    fmt.Println(\"main() started\")\n    c := make(chan string, 2)\n    done := make(chan bool, 1)\n    go func() {\n        for str := range(c) {\n            greet(str)\n        }\n        done <- true\n    }()\n    c <- \"AAA\"\n    c <- \"BBB\"\n    c <- \"CCC\"\n    c <- \"DDD\"\n    c <- \"EEE\"\n    close(c)\n\n    <-done\n    fmt.Println(\"main() stopped\")\n}<\/pre>\n
\u60a8\u4e0d\u4f1a\u7b49\u5230\u6240\u6709\u5b57\u7b26\u4e32\u90fd\u6253\u5370\u5b8c\u624d\u9000\u51fa\u3002\u4e00\u65e6\u4e3b\u7ebf\u7a0b\u5230\u8fbe\u6267\u884c\u7ed3\u675f\uff0c\u5b83\u5c31\u4f1a\u5173\u95ed\u6240\u6709 goroutine \u5e76\u7ed3\u675f\u7a0b\u5e8f\u3002\u7531\u4e8e\u8fd9\u79cd\u60c5\u51b5\u540c\u65f6\u53d1\u751f\uff0c\u56e0\u6b64\u65e0\u6cd5\u786e\u5b9a\u5c06\u5141\u8bb8\u6253\u5370\u591a\u5c11\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > > > \u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa \u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa \u6765\u6e90\uff1astackoverflow 2024-04-26 20:54:36 0\u6d4f\u89c8 \u6536\u85cf \u6765\u5230\u7c73\u4e91\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60Golang\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300a\u4e3a\u4ec0\u4e48\u8fd9\u91cc\u6709\u901a\u9053\u7684\u53ef\u53d8\u8f93\u51fa\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01 \u95ee\u9898\u5185\u5bb9 \u6211\u6b63\u5728\u5c1d\u8bd5\u4ece\u8fd9\u91cc\u4fee\u6539\u4ee3\u7801\u3002\u6211\u521b\u5efa 5 \u4e2a\u901a\u9053\u5e76\u53d1\u9001\u6570\u636e 5 \u6b21\uff1a package main import “fmt” func greet(c chan string) { fmt.println(“hello ” + <-c + “!”) } func main() { fmt.println(“main() started”) c := make(chan string) for i:=0; i<5; i++ { go greet(c) } c <- “aaa” […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-42867","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=42867"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42867\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=42867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=42867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=42867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}