{"id":206114,"date":"2025-06-12T08:42:49","date_gmt":"2025-06-12T00:42:49","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206114\/"},"modified":"2025-06-12T08:42:49","modified_gmt":"2025-06-12T00:42:49","slug":"golang-%e7%ab%af%e5%8f%a3%e6%89%ab%e6%8f%8f%e5%99%a8%e5%9c%a8-linux-%e7%b3%bb%e7%bb%9f%e4%b8%8b%e6%97%a0%e6%b3%95%e6%89%ab%e6%8f%8f%e5%87%ba%e5%85%a8%e9%83%a8%e7%ab%af%e5%8f%a3%ef%bc%8c%e8%af%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206114\/","title":{"rendered":"Golang \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p>\u4f60\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f \u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u5982\u679c\u4f60\u60f3\u63d0\u5347\u81ea\u5df1\u7684\u5f00\u53d1\u80fd\u529b\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5927\u5bb6\u8981\u77e5\u9053\u7f16\u7a0b\u7406\u8bba\u57fa\u7840\u548c\u5b9e\u6218\u64cd\u4f5c\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u54e6\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/1730644423672789c78a1de.jpg\" class=\"aligncenter\">,\u5728\u7f16\u5199\u4e00\u4e2a\u4f7f\u7528\u534f\u7a0b\u9650\u5236\u7aef\u53e3\u626b\u63cf\u5668\u4e2d\u534f\u7a0b\u6570\u91cf\u7684 go \u8bed\u8a00\u7a0b\u5e8f\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u626b\u63cf\u7ed3\u679c\u4e0d\u5982\u9884\u671f\u7684\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u95ee\u9898\u7684\u8be6\u7ec6\u4ecb\u7ecd\u548c\u89e3\u51b3\u65b9\u6848\uff1a,\u4f7f\u7528 sync.waitgroup \u9650\u5236\u534f\u7a0b\u6570\u91cf\u65f6\uff0c\u5728 windows \u7cfb\u7edf\u4e0a\u53ef\u4ee5\u6210\u529f\u626b\u63cf\u51fa\u7aef\u53e3\uff0c\u4f46\u5728 linux \u7cfb\u7edf\u4e0a\u5374\u65e0\u6cd5\u83b7\u5f97\u5168\u90e8\u626b\u63cf\u7ed3\u679c\u3002\u4f8b\u5982\uff0c\u8bbe\u7f6e 1000 \u4e2a\u534f\u7a0b\u65f6\uff0c\u53ef\u4ee5\u5728 windows \u4e0a\u626b\u63cf\u51fa 80\u3001443\u30018000 \u548c 3389 \u7aef\u53e3\uff0c\u4f46\u5728 linux \u4e0a\u53ea\u80fd\u626b\u63cf\u51fa 80 \u548c 443 \u7aef\u53e3\u3002,\u6b64\u95ee\u9898\u4e0d\u5728\u4e8e go \u8bed\u8a00\u4ee3\u7801\u672c\u8eab\uff0c\u800c\u662f linux \u7cfb\u7edf\u7684\u9ed8\u8ba4\u914d\u7f6e\u9650\u5236\u3002linux \u4e2d\u5141\u8bb8\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u91cf\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a 1024\u3002\u5f53\u540c\u65f6\u521b\u5efa\u8d85\u8fc7 1024 \u4e2a\u534f\u7a0b\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u8d85\u8fc7\u9650\u5236\uff0c\u4ece\u800c\u5bfc\u81f4\u5957\u63a5\u5b57\u8fde\u63a5\u5efa\u7acb\u5931\u8d25\u3002,\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u65b9\u6cd5\uff1a,\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5e94\u8be5\u80fd\u591f\u4f7f\u7528\u8f83\u591a\u7684\u534f\u7a0b\u5e76\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\u3002,\u4ee5\u4e0b\u662f\u7ecf\u8fc7\u4fee\u6539\u7684\u4f18\u5316\u4ee3\u7801\uff1a,\u4fee\u6539\u540e\u7684\u4ee3\u7801\u4e2d\uff0c\u5c06\u5141\u8bb8\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u589e\u52a0\u5230\u4e86 10000\u3002\u8fd9\u5c06\u5141\u8bb8\u4f7f\u7528\u66f4\u591a\u7684\u534f\u7a0b\uff0c\u5e76\u5e94\u8be5\u80fd\u591f\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\u3002,\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f \u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,\u4f60\u5728\u5b66\u4e60<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f \u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u5982\u679c\u4f60\u60f3\u63d0\u5347\u81ea\u5df1\u7684\u5f00\u53d1\u80fd\u529b\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5927\u5bb6\u8981\u77e5\u9053\u7f16\u7a0b\u7406\u8bba\u57fa\u7840\u548c\u5b9e\u6218\u64cd\u4f5c\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u54e6\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>GOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f <\/span><\/p>\n<h1>GOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f <\/h1>\n<p><span>2024-11-03 22:33:59<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4f60\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">GOLANG<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\u5417\uff1f\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f \u300b<\/span>\uff0c\u4e3b\u8981\u4ecb\u7ecd\u7684\u5185\u5bb9\u5c31\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u5982\u679c\u4f60\u60f3\u63d0\u5347\u81ea\u5df1\u7684\u5f00\u53d1\u80fd\u529b\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5927\u5bb6\u8981\u77e5\u9053\u7f16\u7a0b\u7406\u8bba\u57fa\u7840\u548c\u5b9e\u6218\u64cd\u4f5c\u90fd\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u54e6\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/1730644423672789c78a1de.jpg\" class=\"aligncenter\"><\/p>\n<h2>golang \u7a0b\u5e8f\u4e2d\u5982\u4f55\u63a7\u5236\u534f\u7a0b\u6570\u91cf\u4ee5\u4f18\u5316\u7aef\u53e3\u626b\u63cf\u5668<\/h2>\n<p>\u5728\u7f16\u5199\u4e00\u4e2a\u4f7f\u7528\u534f\u7a0b\u9650\u5236\u7aef\u53e3\u626b\u63cf\u5668\u4e2d\u534f\u7a0b\u6570\u91cf\u7684 go \u8bed\u8a00\u7a0b\u5e8f\u65f6\uff0c\u60a8\u53ef\u80fd\u4f1a\u9047\u5230\u626b\u63cf\u7ed3\u679c\u4e0d\u5982\u9884\u671f\u7684\u95ee\u9898\u3002\u4ee5\u4e0b\u662f\u95ee\u9898\u7684\u8be6\u7ec6\u4ecb\u7ecd\u548c\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n<h3>\u95ee\u9898\u63cf\u8ff0<\/h3>\n<p>\u4f7f\u7528 sync.waitgroup \u9650\u5236\u534f\u7a0b\u6570\u91cf\u65f6\uff0c\u5728 windows \u7cfb\u7edf\u4e0a\u53ef\u4ee5\u6210\u529f\u626b\u63cf\u51fa\u7aef\u53e3\uff0c\u4f46\u5728 linux \u7cfb\u7edf\u4e0a\u5374\u65e0\u6cd5\u83b7\u5f97\u5168\u90e8\u626b\u63cf\u7ed3\u679c\u3002\u4f8b\u5982\uff0c\u8bbe\u7f6e 1000 \u4e2a\u534f\u7a0b\u65f6\uff0c\u53ef\u4ee5\u5728 windows \u4e0a\u626b\u63cf\u51fa 80\u3001443\u30018000 \u548c 3389 \u7aef\u53e3\uff0c\u4f46\u5728 linux \u4e0a\u53ea\u80fd\u626b\u63cf\u51fa 80 \u548c 443 \u7aef\u53e3\u3002<\/p>\n<h3>\u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u6b64\u95ee\u9898\u4e0d\u5728\u4e8e go \u8bed\u8a00\u4ee3\u7801\u672c\u8eab\uff0c\u800c\u662f linux \u7cfb\u7edf\u7684\u9ed8\u8ba4\u914d\u7f6e\u9650\u5236\u3002linux \u4e2d\u5141\u8bb8\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u91cf\u9ed8\u8ba4\u8bbe\u7f6e\u4e3a 1024\u3002\u5f53\u540c\u65f6\u521b\u5efa\u8d85\u8fc7 1024 \u4e2a\u534f\u7a0b\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u8d85\u8fc7\u9650\u5236\uff0c\u4ece\u800c\u5bfc\u81f4\u5957\u63a5\u5b57\u8fde\u63a5\u5efa\u7acb\u5931\u8d25\u3002<\/p>\n<p>\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<ol>\n<li><strong>\u964d\u4f4e\u534f\u7a0b\u6570\u91cf\uff1a<\/strong>\u534f\u7a0b\u6570\u91cf\u5e76\u4e0d\u603b\u662f\u8d8a\u591a\u8d8a\u597d\u3002\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u534f\u7a0b\u6570\u91cf\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<li><strong>\u4fee\u6539 linux \u914d\u7f6e\uff1a<\/strong>\u53ef\u4ee5\u4fee\u6539 linux \u7684\u914d\u7f6e\u9650\u5236\u4ee5\u5141\u8bb8\u540c\u65f6\u6253\u5f00\u66f4\u591a\u6587\u4ef6\u3002\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u589e\u52a0\u6253\u5f00\u6587\u4ef6\u7684\u9650\u5236\uff1a<\/li>\n<\/ol>\n<pre>ulimit -shn 10000<\/pre>\n<p>\u6267\u884c\u6b64\u547d\u4ee4\u540e\uff0c\u5e94\u8be5\u80fd\u591f\u4f7f\u7528\u8f83\u591a\u7684\u534f\u7a0b\u5e76\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\u3002<\/p>\n<h3>\u4f18\u5316\u540e\u7684\u4ee3\u7801<\/h3>\n<p>\u4ee5\u4e0b\u662f\u7ecf\u8fc7\u4fee\u6539\u7684\u4f18\u5316\u4ee3\u7801\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"fmt\"\n    \"net\"\n    \"time\"\n    \"sync\"\n)\n\ntype Job struct {\n    host string\n    port int\n}\n\ntype Result struct {\n    job    Job\n    status bool\n}\n\nvar success uint32\nvar fail uint32\nvar successMux sync.Mutex\nvar failMux sync.Mutex\n\nvar jobs = make(chan Job)\nvar results = make(chan Result)\n\nfunc worker(wg *sync.WaitGroup) {\n    for job := range jobs {\n        _, err := net.DialTimeout(\"tcp\", fmt.Sprintf(\"%s:%d\", job.host, job.port), time.Millisecond*5500)\n        if err != nil {\n            failMux.Lock()\n            fail++\n            failMux.Unlock()\n            if job.port == 50051 {\n                fmt.Println(\"I am port 50051, error:\", err.Error())\n            }\n            results &amp;lt;- Result{job, false}\n        } else {\n            successMux.Lock()\n            success++\n            successMux.Unlock()\n            results &amp;lt;- Result{job, true}\n        }\n    }\n    wg.Done()\n}\n\nconst host = \"127.0.0.1\"\n\nfunc main() {\n    wg := sync.WaitGroup{}\n\n    go func() {\n        for i := 1; i &amp;lt;= 65535; i++ {\n            jobs &amp;lt;- Job{host, i}\n        }\n        close(jobs)\n    }()\n\n    go func() {\n        for result := range results {\n            if result.status {\n                fmt.Println(result.job, \"open\")\n            }\n        }\n    }()\n\n    for i := 0; i &amp;lt; 4500; i++ {\n        wg.Add(1)\n        go worker(&amp;amp;wg)\n    }\n    wg.Wait()\n\n    fmt.Println(\"success is \", success)\n    fmt.Println(\"fail is \", fail)\n}<\/pre>\n<p>\u4fee\u6539\u540e\u7684\u4ee3\u7801\u4e2d\uff0c\u5c06\u5141\u8bb8\u540c\u65f6\u6253\u5f00\u7684\u6587\u4ef6\u6570\u589e\u52a0\u5230\u4e86 10000\u3002\u8fd9\u5c06\u5141\u8bb8\u4f7f\u7528\u66f4\u591a\u7684\u534f\u7a0b\uff0c\u5e76\u5e94\u8be5\u80fd\u591f\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGOLANG \u7aef\u53e3\u626b\u63cf\u5668\u5728 Linux \u7cfb\u7edf\u4e0b\u65e0\u6cd5\u626b\u63cf\u51fa\u5168\u90e8\u7aef\u53e3\uff0c\u8be5\u5982\u4f55\u89e3\u51b3\uff1f \u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528CSS mask \u5b9e\u73b0\u52a8\u6001\u7f3a\u53e3\u6548\u679c\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u6cdb\u578b\u7c7b\u4e2d\u5982\u4f55\u4f7f\u7528 Class \u6765\u53cd\u5e8f\u5217\u5316 JSON \u5bf9\u8c61\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u5728\u5b66\u4e60 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