{"id":43288,"date":"2024-12-01T15:49:15","date_gmt":"2024-12-01T07:49:15","guid":{"rendered":"https:\/\/fwq.ai\/blog\/43288\/"},"modified":"2024-12-01T15:49:15","modified_gmt":"2024-12-01T07:49:15","slug":"golang%e5%b9%b6%e5%8f%91%e6%b7%bb%e5%8a%a0%e8%8a%82%e7%82%b9%e5%88%b0%e9%93%be%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/43288\/","title":{"rendered":"golang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868"},"content":{"rendered":"

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

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> golang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868<\/span><\/p>\n

golang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868<\/h1>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-05-01 19:09:35<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300agolang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868\u300b<\/span>\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

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

\u6211\u6b63\u5728\u5c1d\u8bd5\u4f7f\u7528\u901a\u9053\u548c goroutine \u540c\u65f6\u5c06\u8282\u70b9\u6dfb\u52a0\u5230\u94fe\u8868\u4e2d\u3002\u7136\u800c\uff0c\u6211\u4f3c\u4e4e\u505a\u9519\u4e86\u4ec0\u4e48\u3002\u8fd9\u662f\u6211\u5230\u76ee\u524d\u4e3a\u6b62\u6240\u5199\u7684\u5185\u5bb9\u3002<\/p>\n

\u76ee\u524d\uff0c\u6211\u7684\u6253\u5370\u529f\u80fd\u53ea\u662f\u91cd\u590d\u7b2c 8 \u4e2a\u8282\u70b9\u3002\u8fd9\u4f3c\u4e4e\u9002\u7528\u4e8e\u5176\u4ed6\u94fe\u8868\uff0c\u6240\u4ee5\u6211\u4e0d\u5b8c\u5168\u7406\u89e3\u8fd9\u4e2a\u95ee\u9898\u3002\u4efb\u4f55\u5e2e\u52a9\u90fd\u4f1a\u5f88\u68d2\u3002\u8fd9\u662f\u6211\u5199\u7684\u4ee3\u7801<\/p>\n

func makeNodes(ctx context.Context, wg *sync.WaitGroup, ch chan Node) {\n    defer wg.Done()\n    for i := 0; i < 9; i++ {\n        tmp := Node{Data: i, Next: nil}\n        ch <- tmp\n    }\n    <-ctx.Done()\n    return\n}\n\ntype Node struct {\n    Data int\n    Next *Node\n}\n\ntype List struct {\n    Head   *Node\n    Length int\n    Last   *Node\n}\n\nfunc (l *List) addToEnd(n *Node) {\n    if l.Head == nil {\n        l.Head = n\n        l.Last = n\n        l.Length++\n        return\n    }\n    tmp := l.Last\n    tmp.Next = n\n    l.Last = n\n    l.Length++\n}\n\nfunc (l List) print() {\n    tmp := l.Head\n    for tmp != nil {\n        fmt.Println(tmp)\n        tmp = tmp.Next\n    }\n    fmt.Println(\"\\n\")\n}\n\nfunc main() {\n    cha := make(chan Node)\n    defer close(cha)\n\n    ctx := context.Background()\n    ctx, cancel := context.WithCancel(ctx)\n    var wg sync.WaitGroup\n\n    wg.Add(1)\n    list := List{nil, 0, nil}\n    go makeNodes(ctx, &wg, cha)\n\n    go func() {\n        for j := range cha {\n            list.addToEnd(&j)\n        }\n    }()\n\n    cancel()\n    wg.Wait()\n\n    list.print()\n}<\/pre>\n
 <\/p>\n
\u6b63\u786e\u7b54\u6848<\/h2>\n
 <\/p>\n
\u8be5\u7a0b\u5e8f\u5206\u914d\u5355\u4e2a\u7ed3\u6784\uff08for j:= range<\/code> \u5faa\u73af\u4e2d\u7684 j<\/code>\uff09\uff0c\u5e76\u7528\u4ece\u901a\u9053\u8bfb\u53d6\u7684\u5185\u5bb9\u91cd\u590d\u8986\u76d6\u5b83\u3002<\/p>\n
\u8fd9\u4f1a\u5bfc\u81f4\u540c\u4e00\u53d8\u91cf\uff08j<\/code>\uff0c\u4f4d\u4e8e\u56fa\u5b9a\u5185\u5b58\u4f4d\u7f6e\uff09\u88ab\u591a\u6b21\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\u3002<\/p>\n
\u8003\u8651\u5c06\u901a\u9053\u4fee\u6539\u4e3a\u6307\u9488\u901a\u9053\u3002<\/p>\n
\u5728main()<\/code>\u4e2d<\/p>\n
cha := make(chan *node)<\/pre>\n
\u7136\u540e\u5bf9\u4e8emakenodes()<\/code> \u6bcf\u6b21\u521b\u5efa\u65b0\u8282\u70b9\uff08\u901a\u8fc7 node{}<\/code>\uff09\u65f6\uff0c\u90fd\u4f1a\u5c06\u4e00\u4e2a\u65b0<\/em>\u8282\u70b9\u6307\u9488\u653e\u5165\u901a\u9053\u4e2d\u3002<\/p>\n
func makenodes(ctx context.context, wg *sync.waitgroup, ch chan *node) {\n    defer wg.done()\n    for i := 0; i < 9; i++ {\n        tmp := node{data: i, next: nil}\n        ch <- &tmp\n    }\n    <-ctx.done()\n    return\n}<\/pre>\n
\u4ee5\u4e0b\u5185\u5bb9\u73b0\u5728\u5c06\u6b63\u786e\u5730\u5c06\u6bcf\u4e2a\u552f\u4e00\u7684\u8282\u70b9\u6307\u9488\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\u3002<\/p>\n
go func() {\n    for j := range cha {\n        list.addToEnd(j)\n    }\n}()<\/pre>\n
\u6b64\u5916\uff0c\u60a8\u53ef\u80fd\u4f1a\u53d1\u73b0\u5e76\u975e\u6240\u6709\u5b9e\u4f53\u90fd\u4f1a\u8fdb\u5165\u5217\u8868\u6216\u4ece\u901a\u9053\u4e2d\u8bfb\u53d6\u3002\u60a8\u540c\u6b65\u751f\u4ea7\u8005 (makenodes()<\/code>) \u548c\u6d88\u8017 (for j:= range<\/code>) \u7684\u65b9\u6cd5\u9700\u8981\u5de5\u4f5c\u3002<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > > > golang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868 golang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868 \u6765\u6e90\uff1astackoverflow 2024-05-01 19:09:35 0\u6d4f\u89c8 \u6536\u85cf \u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u300agolang\u5e76\u53d1\u6dfb\u52a0\u8282\u70b9\u5230\u94fe\u8868\u300b\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01 \u95ee\u9898\u5185\u5bb9 \u6211\u6b63\u5728\u5c1d\u8bd5\u4f7f\u7528\u901a\u9053\u548c goroutine \u540c\u65f6\u5c06\u8282\u70b9\u6dfb\u52a0\u5230\u94fe\u8868\u4e2d\u3002\u7136\u800c\uff0c\u6211\u4f3c\u4e4e\u505a\u9519\u4e86\u4ec0\u4e48\u3002\u8fd9\u662f\u6211\u5230\u76ee\u524d\u4e3a\u6b62\u6240\u5199\u7684\u5185\u5bb9\u3002 \u76ee\u524d\uff0c\u6211\u7684\u6253\u5370\u529f\u80fd\u53ea\u662f\u91cd\u590d\u7b2c 8 \u4e2a\u8282\u70b9\u3002\u8fd9\u4f3c\u4e4e\u9002\u7528\u4e8e\u5176\u4ed6\u94fe\u8868\uff0c\u6240\u4ee5\u6211\u4e0d\u5b8c\u5168\u7406\u89e3\u8fd9\u4e2a\u95ee\u9898\u3002\u4efb\u4f55\u5e2e\u52a9\u90fd\u4f1a\u5f88\u68d2\u3002\u8fd9\u662f\u6211\u5199\u7684\u4ee3\u7801 func makeNodes(ctx context.Context, wg *sync.WaitGroup, ch chan Node) { defer wg.Done() for i := 0; i < 9; i++ { tmp := Node{Data: i, Next: nil} ch <- tmp } <-ctx.Done() return } type Node […]<\/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-43288","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/43288","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=43288"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/43288\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=43288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=43288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=43288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}