{"id":205990,"date":"2025-06-12T13:01:33","date_gmt":"2025-06-12T05:01:33","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205990\/"},"modified":"2025-06-12T13:01:33","modified_gmt":"2025-06-12T05:01:33","slug":"golang-%e5%8d%8f%e7%a8%8b%e6%89%ab%e6%8f%8f%e6%97%b6%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e7%a8%8b%e5%ba%8f%e6%8f%90%e5%89%8d%e9%80%80%e5%87%ba%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205990\/","title":{"rendered":"Golang \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f"},"content":{"rendered":"

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60
\nGOLANG<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765
\n\u300aGOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230
\n<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01,
\n,
\ngolang \u534f\u7a0b\u626b\u63cf\u7684\u9000\u51fa\u95ee\u9898<\/strong>,\u5728\u8fdb\u884c\u534f\u7a0b\u626b\u63cf\u7f51\u7edc\u7aef\u53e3\u65f6\uff0c\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u63d0\u524d\u9000\u51fa\u3002\u8fd9\u662f\u4ec0\u4e48\u539f\u56e0\u9020\u6210\u7684\u5462\uff1f,
\n\u95ee\u9898\u89e3\u6790<\/strong>,\u5176\u4e3b\u8981\u95ee\u9898\u5728\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u4fdd\u8bc1\u5728\u5173\u95ed\u7ba1\u9053\u524d\uff0c\u534f\u7a0b\u5df2\u7ecf\u5b8c\u6210\u6240\u6709\u903b\u8f91\u5904\u7406\u3002\u5728\u7ed9\u5b9a\u7684\u4ee3\u7801\u4e2d\uff0c\u4e3b\u534f\u7a0b\u4f7f\u7528\u4e86 time.sleep(time.second) \u6765\u4f11\u7720\uff0c\u8bd5\u56fe\u7b49\u5f85\u534f\u7a0b\u5904\u7406\u5b8c\u5de5\u4f5c\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u505a\u6cd5\u5e76\u4e0d\u80fd\u53ef\u9760\u5730\u786e\u4fdd\u534f\u7a0b\u5df2\u5b8c\u6210\u5de5\u4f5c\u3002\u82e5\u7531\u4e8e\u626b\u63cf\u8f83\u6162\u6216\u5176\u4ed6\u539f\u56e0\uff0c\u5bfc\u81f4\u534f\u7a0b\u5728\u4f11\u7720\u65f6\u95f4\u5185\u4ecd\u672a\u5904\u7406\u5b8c\u5de5\u4f5c\uff0c\u5219\u4e3b\u534f\u7a0b\u5c06\u5173\u95ed\u7ba1\u9053\uff0c\u5bfc\u81f4\u534f\u7a0b\u65e0\u6cd5\u5199\u5165\u7ed3\u679c\u3002,
\n\u89e3\u51b3\u65b9\u6848<\/strong>,\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u4f7f\u7528\u540c\u6b65\u673a\u5236\uff0c\u4f8b\u5982 sync.waitgroup \u6765\u7b49\u5f85\u534f\u7a0b\u6b63\u786e\u5b8c\u6210\u5de5\u4f5c\u3002\u5177\u4f53\u505a\u6cd5\u5982\u4e0b\uff1a,\u5982\u6b64\u4e00\u6765\uff0c\u4e3b\u534f\u7a0b\u53ef\u4ee5\u53ef\u9760\u5730\u7b49\u5f85\u534f\u7a0b\u5b8c\u6210\u626b\u63cf\uff0c\u518d\u5173\u95ed\u7ba1\u9053\u3002,
\n\u4ee3\u7801\u6539\u5584<\/strong>,\u6539\u8fdb\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a,\u73b0\u5728\uff0c\u4e3b\u534f\u7a0b\u5c06\u7b49\u5f85 waitgroup \u8ba1\u6570\u53d8\u4e3a0\uff0c\u8868\u793a\u6240\u6709\u534f\u7a0b\u5df2\u5b8c\u6210\u5de5\u4f5c\uff0c\u7136\u540e\u518d\u5173\u95ed\u7ba1\u9053\uff0c\u786e\u4fdd\u6570\u636e\u88ab\u6b63\u786e\u5199\u5165\u3002,\u4ee5\u4e0a\u5c31\u662f\u300aGOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,\u5728\u6bcf\u4e2a\u534f\u7a0b\u7684\u5f00\u5934\u8c03\u7528 wg.add(1) \u6765\u589e\u52a0waitgroup\u8ba1\u6570\u3002,\u5728\u4e3b\u534f\u7a0b\u4e2d\u521b\u5efa sync.waitgroup \u5b9e\u4f8b\u3002,\u5728\u534f\u7a0b\u7684\u6700\u540e\u8c03\u7528 wg.done() \u6765\u51cf\u5c11waitgroup\u8ba1\u6570\u3002,golang \u534f\u7a0b\u626b\u63cf\u7684\u9000\u51fa\u95ee\u9898,\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60
\nGOLANG<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765
\n\u300aGOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230
\n<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01,
\n<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> GOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f<\/span><\/p>\n

GOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f<\/h1>\n

2024-10-31 08:18:54<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60GOLANG<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aGOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

<\/p>\n

golang \u534f\u7a0b\u626b\u63cf\u7684\u9000\u51fa\u95ee\u9898<\/strong><\/p>\n

\u5728\u8fdb\u884c\u534f\u7a0b\u626b\u63cf\u7f51\u7edc\u7aef\u53e3\u65f6\uff0c\u7a0b\u5e8f\u53ef\u80fd\u4f1a\u63d0\u524d\u9000\u51fa\u3002\u8fd9\u662f\u4ec0\u4e48\u539f\u56e0\u9020\u6210\u7684\u5462\uff1f<\/p>\n

\u95ee\u9898\u89e3\u6790<\/strong><\/p>\n

\u5176\u4e3b\u8981\u95ee\u9898\u5728\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u4fdd\u8bc1\u5728\u5173\u95ed\u7ba1\u9053\u524d\uff0c\u534f\u7a0b\u5df2\u7ecf\u5b8c\u6210\u6240\u6709\u903b\u8f91\u5904\u7406\u3002\u5728\u7ed9\u5b9a\u7684\u4ee3\u7801\u4e2d\uff0c\u4e3b\u534f\u7a0b\u4f7f\u7528\u4e86 time.sleep(time.second) \u6765\u4f11\u7720\uff0c\u8bd5\u56fe\u7b49\u5f85\u534f\u7a0b\u5904\u7406\u5b8c\u5de5\u4f5c\u3002\u7136\u800c\uff0c\u8fd9\u79cd\u505a\u6cd5\u5e76\u4e0d\u80fd\u53ef\u9760\u5730\u786e\u4fdd\u534f\u7a0b\u5df2\u5b8c\u6210\u5de5\u4f5c\u3002\u82e5\u7531\u4e8e\u626b\u63cf\u8f83\u6162\u6216\u5176\u4ed6\u539f\u56e0\uff0c\u5bfc\u81f4\u534f\u7a0b\u5728\u4f11\u7720\u65f6\u95f4\u5185\u4ecd\u672a\u5904\u7406\u5b8c\u5de5\u4f5c\uff0c\u5219\u4e3b\u534f\u7a0b\u5c06\u5173\u95ed\u7ba1\u9053\uff0c\u5bfc\u81f4\u534f\u7a0b\u65e0\u6cd5\u5199\u5165\u7ed3\u679c\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n

\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u9700\u8981\u4f7f\u7528\u540c\u6b65\u673a\u5236\uff0c\u4f8b\u5982 sync.waitgroup \u6765\u7b49\u5f85\u534f\u7a0b\u6b63\u786e\u5b8c\u6210\u5de5\u4f5c\u3002\u5177\u4f53\u505a\u6cd5\u5982\u4e0b\uff1a<\/p>\n

    \n
  • \u5728\u4e3b\u534f\u7a0b\u4e2d\u521b\u5efa sync.waitgroup \u5b9e\u4f8b\u3002<\/li>\n
  • \u5728\u6bcf\u4e2a\u534f\u7a0b\u7684\u5f00\u5934\u8c03\u7528 wg.add(1) \u6765\u589e\u52a0waitgroup\u8ba1\u6570\u3002<\/li>\n
  • \u5728\u534f\u7a0b\u7684\u6700\u540e\u8c03\u7528 wg.done() \u6765\u51cf\u5c11waitgroup\u8ba1\u6570\u3002<\/li>\n
  • \u5728\u4e3b\u534f\u7a0b\u4e2d\u8c03\u7528 wg.wait() \u6765\u7b49\u5f85waitgroup\u8ba1\u6570\u53d8\u4e3a0\uff0c\u8868\u793a\u6240\u6709\u534f\u7a0b\u5df2\u5b8c\u6210\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n

    \u5982\u6b64\u4e00\u6765\uff0c\u4e3b\u534f\u7a0b\u53ef\u4ee5\u53ef\u9760\u5730\u7b49\u5f85\u534f\u7a0b\u5b8c\u6210\u626b\u63cf\uff0c\u518d\u5173\u95ed\u7ba1\u9053\u3002<\/p>\n

    \u4ee3\u7801\u6539\u5584<\/strong><\/p>\n

    \u6539\u8fdb\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

    package main\n\nimport (\n    \"fmt\"\n    \"net\"\n    \"sync\"\n    \"time\"\n)\n\nfunc scanPort(jobChan &lt;-chan int, retChan chan&lt;- string, wg *sync.WaitGroup) {\n    defer wg.Done()\n    \/\/ \u4ece\u7ba1\u9053\u53d6\u7aef\u53e3\n    for port := range jobChan {\n        \/\/ \u53d1\u8d77tcp\u8fde\u63a5\n        target := fmt.Sprintf(\"149.129.68.235:%d\", port)\n        \/\/fmt.Println(target)\n        _, err := net.DialTimeout(\"tcp\", target, 100*time.Millisecond)\n        \/\/_, err := net.Dial(\"tcp\", target)\n        \/\/ \u672a\u53d1\u751f\u9519\u8bef\u65f6\u5199\u5165\u7ed3\u679c\u7ba1\u9053\n        if err == nil {\n            retChan &lt;- fmt.Sprintf(\"%s is open\", target)\n        }\n\n    }\n}\n\nfunc main() {\n    jobChan := make(chan int, 5)\n    retChan := make(chan string, 5)\n\n    \/\/ \u5199\u51651024\u4e2a\u5f85\u626b\u63cf\u7aef\u53e3\u5230\u4efb\u52a1\u7ba1\u9053\n    go func() {\n        for i := 0; i &lt; 1024; i++ {\n            jobChan &lt;- i\n        }\n        close(jobChan)\n    }()\n    wg := sync.WaitGroup{}\n    \/\/ \u521b\u5efan\u4e2a\u534f\u7a0b\n    for i := 0; i &lt; 10; i++ {\n        wg.Add(1)\n        go scanPort(jobChan, retChan, &amp;wg)\n    }\n    go func() {\n        for ret := range retChan {\n            fmt.Println(ret)\n        }\n    }()\n    \/\/ \u5173\u95ed\n    wg.Wait()\n    close(retChan)\n}<\/pre>\n
    \u73b0\u5728\uff0c\u4e3b\u534f\u7a0b\u5c06\u7b49\u5f85 waitgroup \u8ba1\u6570\u53d8\u4e3a0\uff0c\u8868\u793a\u6240\u6709\u534f\u7a0b\u5df2\u5b8c\u6210\u5de5\u4f5c\uff0c\u7136\u540e\u518d\u5173\u95ed\u7ba1\u9053\uff0c\u786e\u4fdd\u6570\u636e\u88ab\u6b63\u786e\u5199\u5165\u3002<\/p>\n
    \u4ee5\u4e0a\u5c31\u662f\u300aGOLANG \u534f\u7a0b\u626b\u63cf\u65f6\u5982\u4f55\u907f\u514d\u7a0b\u5e8f\u63d0\u524d\u9000\u51fa\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n
    \n
    \n <\/dt>\n
    \n   Imagick \u8f6c\u6362\u56fe\u7247\u4e3a WebP \u65f6\u51fa\u73b0 \\”Partition 0 Overflow\\” \u9519\u8bef\u600e\u4e48\u529e?\n <\/dd>\n<\/dl>\n
    \n
    \n <\/dt>\n
    \n   \u5982\u4f55\u4f7f\u7528 JavaScript \u4ee3\u7801\u5b9e\u73b0\u516c\u5e73\u516c\u6b63\u7684\u968f\u673a\u62bd\u5956\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
    \u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60 GOLA...<\/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-205990","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205990","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=205990"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205990\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205990"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205990"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205990"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}