{"id":42428,"date":"2024-12-01T10:09:24","date_gmt":"2024-12-01T02:09:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/42428\/"},"modified":"2024-12-01T10:09:24","modified_gmt":"2024-12-01T02:09:24","slug":"%e9%80%9a%e9%81%93%e7%ab%9e%e4%ba%89%e6%9d%a1%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/42428\/","title":{"rendered":"\u901a\u9053\u7ade\u4e89\u6761\u4ef6"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u901a\u9053\u7ade\u4e89\u6761\u4ef6<\/span><\/p>\n

\u901a\u9053\u7ade\u4e89\u6761\u4ef6<\/h1>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-23 21:00:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u7c73\u4e91\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u901a\u9053\u7ade\u4e89\u6761\u4ef6\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

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

\u8fd9\u5c31\u50cf\u4e00\u4e2a\u5173\u4e8e\u901a\u9053\u7684\u975e\u5e38\u57fa\u672c\u7684\u95ee\u9898\u3002\u6211\u5df2\u7ecf\u8bfb\u5230\u65e0\u7f13\u51b2\u901a\u9053\u5728\u53d1\u9001\u65f6\u4f1a\u963b\u585e\uff0c\u90a3\u4e48\u4e3a\u4ec0\u4e48\u8fd9\u6bb5\u4ee3\u7801\u6709\u7ade\u4e89\u6761\u4ef6\u5462\uff1f<\/p>\n

\u6709\u65f6\u8f93\u51fa\u662f<\/p>\n

<- create;\n<- insert;\nend\n[create; insert;]<\/pre>\n
\u6709\u65f6\u662f\u201c\u63d2\u5165\uff1b\u201d\u8f93\u51fa\u4e2d\u7f3a\u5931\uff0c\u4f46\u5df2\u5199\u5165\u901a\u9053\u3002<\/p>\n
<- create;\n<- insert;\nend\n[create; insert;]<\/pre>\n
\u5982\u679c splitchan<\/code> \u51fd\u6570\u5728\u6765\u81ea slit<\/code> \u7684 cmd := <-c<\/code> \u4e0a\u963b\u585e\uff0c\u5b83\u5982\u4f55\u8fd4\u56de\uff1f<\/p>\n
package main\n\nimport \"fmt\"\n\nfunc main() {\n    batch := `create;insert;`\n    res := split(batch)\n    fmt.print(res)\n}\n\nfunc splitchan(batch string, outc chan<- string) {\n    b := 0\n    for i, c := range batch {\n        switch c {\n        case ';':\n            cmd := batch[b : i+1]\n            fmt.println(\"<- \" + cmd)\n            b = i + 1\n            outc <- cmd\n        }\n    }\n\n    fmt.println(\"end\")\n}\n\nfunc split(batch string) []string {\n    var res []string\n    c := make(chan string)\n    go func() {\n        for {\n            cmd := <-c\n            res = append(res, cmd)\n        }\n    }()\n\n    splitchan(batch, c)\n    close(c)\n    return res\n}\n\n<\/pre>\n
\u6e38\u4e50\u573a\u94fe\u63a5\uff1ahttps:\/\/go.dev\/play\/p\/wmo5otmgetl<\/p>\n
\u6211\u5e0c\u671b\u6bcf\u6b21\u8fd0\u884c\u90fd\u6709\u76f8\u540c\u7684\u8f93\u51fa\uff1a<\/p>\n
<- create;\n<- insert;\nend\n[create; insert;]<\/pre>\n
\u6211\u5728\u8fd9\u91cc\u7f3a\u5c11\u4ec0\u4e48\uff1f \u8c22\u8c22<\/p>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u5f53 splitchan<\/code> \u5199\u5165\u901a\u9053\u65f6\uff0c\u5728 goroutine \u4e0a\u53d1\u751f\u7684\u9644\u52a0\u64cd\u4f5c\u548c return res<\/code> \u8bed\u53e5\u662f\u5e76\u53d1\u7684\u3002 return res<\/code> \u53ef\u80fd\u4f1a\u770b\u5230\u5305\u542b\u4e00\u4e2a\u5143\u7d20\u6216\u4e24\u4e2a\u5143\u7d20\u7684\u5207\u7247\u3002<\/p>\n
\u4f60\u5fc5\u987b\u786e\u4fdd\u5728\u8fd4\u56de\u4e4b\u524d\uff0c\u8ffd\u52a0\u64cd\u4f5c\u5df2\u5b8c\u6210\uff1a<\/p>\n
wg:=sync.WaitGroup{}\n    wg.Add(1)\n    go func() {\n        defer wg.Done()\n        for cmd :=  range c {\n            res = append(res, cmd)\n        }\n    }()\n\n    SplitChan(batch, c)\n    close(c)\n    wg.Wait()\n    return res<\/pre>\n
waitgroup \u786e\u4fdd\u51fd\u6570\u5728 goroutine \u5b8c\u6210\u540e\u8fd4\u56de\u3002<\/p>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u901a\u9053\u7ade\u4e89\u6761\u4ef6\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 > > > > \u901a\u9053\u7ade\u4e89\u6761\u4ef6 \u901a\u9053\u7ade\u4e89\u6761\u4ef6 \u6765\u6e90\uff1astackoverflow 2024-04-23 21:00:35 0\u6d4f\u89c8 \u6536\u85cf \u600e\u4e48\u5165\u95e8Golang\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u7c73\u4e91\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300a\u901a\u9053\u7ade\u4e89\u6761\u4ef6\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b \u95ee\u9898\u5185\u5bb9 \u8fd9\u5c31\u50cf\u4e00\u4e2a\u5173\u4e8e\u901a\u9053\u7684\u975e\u5e38\u57fa\u672c\u7684\u95ee\u9898\u3002\u6211\u5df2\u7ecf\u8bfb\u5230\u65e0\u7f13\u51b2\u901a\u9053\u5728\u53d1\u9001\u65f6\u4f1a\u963b\u585e\uff0c\u90a3\u4e48\u4e3a\u4ec0\u4e48\u8fd9\u6bb5\u4ee3\u7801\u6709\u7ade\u4e89\u6761\u4ef6\u5462\uff1f \u6709\u65f6\u8f93\u51fa\u662f <- create; <- insert; end [create; insert;] \u6709\u65f6\u662f\u201c\u63d2\u5165\uff1b\u201d\u8f93\u51fa\u4e2d\u7f3a\u5931\uff0c\u4f46\u5df2\u5199\u5165\u901a\u9053\u3002 <- create; <- insert; end [create; insert;] \u5982\u679c splitchan \u51fd\u6570\u5728\u6765\u81ea slit \u7684 cmd := <-c \u4e0a\u963b\u585e\uff0c\u5b83\u5982\u4f55\u8fd4\u56de\uff1f package main import “fmt” func main() { batch := `create;insert;` res := split(batch) fmt.print(res) } […]<\/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-42428","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42428","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=42428"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42428\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=42428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=42428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=42428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}