{"id":117223,"date":"2026-10-22T21:58:39","date_gmt":"2026-10-22T13:58:39","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/117223.html"},"modified":"2026-10-22T21:58:39","modified_gmt":"2026-10-22T13:58:39","slug":"%e3%80%90linux-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%e3%80%91tcp-%e8%b7%a8%e5%b9%b3%e5%8f%b0%e5%ae%9e%e6%88%98%ef%bc%9a%e7%94%a8-windows-%e5%ae%a2%e6%88%b7%e7%ab%af%e8%ae%bf%e9%97%ae-linux-%e6%9c%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/117223.html","title":{"rendered":"\u3010Linux \u7f51\u7edc\u7f16\u7a0b\u3011TCP \u8de8\u5e73\u53f0\u5b9e\u6218\uff1a\u7528 Windows \u5ba2\u6237\u7aef\u8bbf\u95ee Linux \u670d\u52a1\u5668"},"content":{"rendered":"

🔥 \u661f\u5149\u7f16\u8bd1\u8005<\/b><\/font> \u00b7 \u4e2a\u4eba\u4e3b\u9875<\/p>\n

📚 \u5b66\u4e60\u4e13\u680f：<\/b><\/font> \u300aC\/C++ \u6210\u957f\u7b14\u8bb0\u300b<\/font> \u00b7 \u300aLinux \u5b9e\u8df5\u624b\u518c\u300b<\/font> \u00b7 \u300a\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u300b<\/font><\/p>\n

🌄 \u5411\u4e91\u7aef\u98de\u626c，\u7f16\u8bd1\u5c5e\u4e8e\u81ea\u5df1\u7684\u4ee3\u7801\u661f\u6cb3\u3002<\/b><\/font><\/p>\n

\n

\u2615 \u5199\u5728\u5f00\u7bc7<\/font><\/h4>\n

\u2003\u2003\u4f60\u597d，\u8fd9\u91cc\u662f \u661f\u5149\u7f16\u8bd1\u8005<\/b><\/font>\u3002<\/font><\/p>\n

\u2003\u2003\u8fd9\u91cc\u8bb0\u5f55\u6211\u5728 C\/C++\u3001Linux\u3001\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5<\/b><\/font> \u5b66\u4e60\u4e2d\u9047\u5230\u7684\u771f\u5b9e\u95ee\u9898\u3001\u4eb2\u624b\u9a8c\u8bc1\u8fc7\u7684\u4ee3\u7801，\u4ee5\u53ca\u90a3\u4e9b\u5bb9\u6613\u88ab\u5ffd\u7565\u7684\u5b9e\u73b0\u7ec6\u8282\u3002<\/font><\/p>\n

\u2003\u2003\u6bd4\u8d77\u7b80\u5355\u7f57\u5217\u7ed3\u8bba，\u6211\u66f4\u613f\u610f\u4ece\u95ee\u9898\u51fa\u53d1，\u628a\u4e00\u4e2a\u77e5\u8bc6\u70b9\u7684\u6765\u7531\u8bb2\u6e05\u695a，\u628a\u201c\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837<\/b><\/font>\u201d\u548c\u201c\u5e94\u8be5\u600e\u6837\u89e3\u51b3<\/b><\/font>\u201d\u8bf4\u660e\u767d，\u8ba9\u6bcf\u4e00\u6b21\u8e29\u5751\u90fd\u6c89\u6dc0\u6210\u53ef\u4ee5\u590d\u7528\u7684\u7ecf\u9a8c\u3002<\/font><\/p>\n

\u2003\u2003\u5982\u679c\u8fd9\u7bc7\u8bb0\u5f55\u80fd\u5e2e\u4f60\u5c11\u7ed5\u4e00\u70b9\u8def<\/b><\/font>，\u6216\u8ba9\u67d0\u4e2a\u6a21\u7cca\u7684\u5730\u65b9\u5ffd\u7136\u53d8\u5f97\u6e05\u6670，\u90a3\u4e48\u8fd9\u6b21\u5206\u4eab\u4fbf\u6709\u4e86\u610f\u4e49\u3002\u613f\u6211\u4eec\u5728\u4e00\u6b21\u6b21\u9605\u8bfb\u3001\u7f16\u8bd1\u4e0e\u8c03\u8bd5\u4e2d\u7a33\u6b65\u5411\u524d，\u6162\u6162\u642d\u8d77\u5c5e\u4e8e\u81ea\u5df1\u7684\u6280\u672f\u4e16\u754c\u3002<\/font><\/p>\n

\"\u661f\u5149\u7f16\u8bd1\u8005\u535a\u5ba2\u5f00\u573a\u52a8\u753b\" <\/p>\n

\n

<\/h2>\n

🔥 \u672c\u6587\u5b9a\u4f4d：\u628a Linux \u4e0a\u5b66\u8fc7\u7684 TCP Socket \u642c\u5230 Windows \u5ba2\u6237\u7aef，\u5b8c\u6210\u201c\u8fde\u63a5 Linux \u2192 \u53d1\u9001\u6570\u636e \u2192 \u6536\u5230\u56de\u663e \u2192 \u89c2\u5bdf\u9000\u51fa\u201d\u7684\u5b8c\u6574\u5b9e\u9a8c\u3002<\/p>\n

💡 \u5b66\u4e60\u76ee\u6807：\u7406\u89e3 Winsock \u521d\u59cb\u5316\u4e0e\u94fe\u63a5；\u638c\u63e1 SOCKET \/ connect \/ send \/ recv；\u533a\u5206\u6b63\u5e38\u5173\u95ed\u548c\u901a\u4fe1\u9519\u8bef；\u80fd\u6309\u987a\u5e8f\u6392\u67e5\u8de8\u4e3b\u673a\u8fde\u63a5\u5931\u8d25\u3002<\/p>\n

📌 \u5b9e\u73b0\u8303\u56f4：IPv4\u3001C++17\u3001\u963b\u585e\u5f0f TCP\u3002Windows \u5ba2\u6237\u7aef\u4f7f\u7528 Winsock 2.2，\u914d\u5957 Linux \u670d\u52a1\u5668\u91c7\u7528\u5355\u7ebf\u7a0b\u539f\u6837\u56de\u663e，\u4fbf\u4e8e\u89c2\u5bdf\u63a5\u53e3\u8bed\u4e49\u3002<\/p>\n

\u6211\u4eec\u4ecd\u6cbf\u7528\u4e4b\u524d\u535a\u5ba2\u7684\u65b9\u5f0f：\u5148\u660e\u786e\u95ee\u9898，\u518d\u89e3\u91ca\u8c03\u7528\u94fe，\u6700\u540e\u7ed9\u51fa\u4ee3\u7801\u3001\u9a8c\u8bc1\u65b9\u6cd5\u548c\u6392\u9519\u8def\u5f84\u3002 \u8bb2\u4e49\u63d0\u4f9b\u4e86\u6700\u5c0f\u5b9e\u9a8c；\u672c\u6587\u5728\u5b83\u7684\u57fa\u7840\u4e0a\u8865\u9f50\u8f93\u5165\u9000\u51fa\u3001\u9519\u8bef\u7801\u3001\u77ed\u53d1\u9001\u3001\u5206\u6bb5\u63a5\u6536\u548c\u8d44\u6e90\u91ca\u653e，\u8ba9\u793a\u4f8b\u7684\u884c\u4e3a\u66f4\u660e\u786e\u3002<\/p>\n

\u914d\u5957\u7ea6\u5b9a：\u672c\u6587\u9644\u5e26\u7684 Linux \u670d\u52a1\u7aef\u628a\u6536\u5230\u7684\u6bcf\u4e2a\u5b57\u8282\u539f\u6837\u56de\u53d1，\u4e0d\u6dfb\u52a0\u4efb\u4f55\u540e\u7f00\u3002\u8bb2\u4e49\u622a\u56fe\u4e2d\u7684\u670d\u52a1\u5668\u4f1a\u9644\u52a0\u7c7b\u4f3c [tcp server echo message] \u7684\u5185\u5bb9，\u56e0\u6b64\u672c\u6587\u6539\u8fdb\u7248\u5ba2\u6237\u7aef\u5e94\u4e0e\u968f\u9644\u670d\u52a1\u5668\u914d\u5957\u4f7f\u7528\u3002\u4e24\u79cd\u54cd\u5e94\u7ea6\u5b9a\u4e0d\u80fd\u76f4\u63a5\u6df7\u7528\u3002<\/p>\n

\n

\u6587\u7ae0\u76ee\u5f55<\/h3>\n
    \n
  • \u4e00\u3001\u8de8\u5e73\u53f0\u901a\u4fe1\u9a8c\u8bc1\u7684\u5230\u5e95\u662f\u4ec0\u4e48<\/li>\n
  • \u4e8c\u3001\u5148\u51c6\u5907\u597d\u670d\u52a1\u5165\u53e3\u4e0e\u7f51\u7edc\u8def\u5f84<\/li>\n
  • \u4e09\u3001Winsock \u4e0e Linux Socket \u6709\u54ea\u4e9b\u4e0d\u540c<\/li>\n
  • \u56db\u3001\u9010\u6b65\u8bfb\u61c2\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u6d41\u7a0b<\/li>\n
  • \u4e94\u3001\u539f\u59cb\u6536\u53d1\u5faa\u73af\u91cc\u6709\u54ea\u4e9b\u9690\u85cf\u95ee\u9898<\/li>\n
  • \u516d\u3001\u5b8c\u6574\u7684 Windows TCP \u5ba2\u6237\u7aef<\/li>\n
  • \u4e03\u3001\u914d\u5957\u7684 Linux \u539f\u6837\u56de\u663e\u670d\u52a1\u5668<\/li>\n
  • \u516b\u3001\u7f16\u8bd1\u8fd0\u884c\u4e0e\u901a\u4fe1\u9a8c\u8bc1<\/li>\n
  • \u4e5d\u3001\u9000\u51fa\u8fde\u63a5\u4e0e\u5f02\u5e38\u65ad\u7ebf\u600e\u6837\u533a\u5206<\/li>\n
  • \u5341\u3001\u8fde\u63a5\u5931\u8d25\u65f6\u6309\u4ec0\u4e48\u987a\u5e8f\u6392\u67e5<\/li>\n
  • \u603b\u7ed3<\/li>\n<\/ul>\n
    \n

    \u4e00\u3001\u8de8\u5e73\u53f0\u901a\u4fe1\u9a8c\u8bc1\u7684\u5230\u5e95\u662f\u4ec0\u4e48<\/h3>\n

    \u5728 Linux \u4e0a\u5199\u8fc7 TCP \u5ba2\u6237\u7aef\u540e，\u6362\u6210 Windows，\u5f88\u5bb9\u6613\u5148\u95ee：\u201c\u5934\u6587\u4ef6\u4e0d\u540c，\u51fd\u6570\u7ec6\u8282\u4e5f\u4e0d\u540c，\u4e24\u7aef\u8fd8\u80fd\u4e92\u76f8\u901a\u4fe1\u5417？\u201d<\/p>\n

    \u53ef\u4ee5\u3002\u8de8\u4e3b\u673a\u901a\u4fe1\u4f9d\u8d56\u53cc\u65b9\u5171\u540c\u9075\u5b88\u7684\u7f51\u7edc\u534f\u8bae\u548c\u5e94\u7528\u534f\u8bae，\u800c\u4e0d\u662f\u53cc\u65b9\u5fc5\u987b\u4f7f\u7528\u76f8\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002 Windows \u5ba2\u6237\u7aef\u901a\u8fc7 Winsock \u63a5\u53e3\u8c03\u7528\u672c\u673a\u7f51\u7edc\u6808，Linux \u670d\u52a1\u5668\u901a\u8fc7 Linux Socket \u63a5\u53e3\u8c03\u7528\u81ea\u5df1\u7684\u7f51\u7edc\u6808，\u7ebf\u4e0a\u4ea4\u6362\u7684\u662f TCP \u6240\u627f\u8f7d\u7684\u5b57\u8282\u3002<\/p>\n

    1.1 API \u4e0d\u540c，\u7ebf\u4e0a\u89c4\u5219\u76f8\u540c<\/h4>\n

    \u6bd4\u5982 Windows \u9700\u8981\u5148\u8c03\u7528 WSAStartup，Linux \u4e0d\u9700\u8981；Windows \u7528 closesocket \u91ca\u653e Socket，Linux \u7528 close\u3002\u8fd9\u4e9b\u662f\u5404\u81ea\u7cfb\u7edf\u63d0\u4f9b\u63a5\u53e3\u7684\u5dee\u5f02，\u4e0d\u4f1a\u8981\u6c42\u5bf9\u7aef\u4e5f\u91c7\u7528\u540c\u4e00\u5957\u8c03\u7528\u65b9\u5f0f\u3002<\/p>\n

    \u771f\u6b63\u9700\u8981\u5bf9\u9f50\u7684\u662f：<\/p>\n\n\u7ea6\u5b9a\u672c\u6587\u9009\u62e9\u4e0d\u4e00\u81f4\u4f1a\u600e\u6837<\/tr>\n\n\n\n\n\n\n
    \u5730\u5740\u65cf<\/td>\nIPv4<\/td>\n\u5730\u5740\u51c6\u5907\u6216\u8fde\u63a5\u5931\u8d25<\/td>\n<\/tr>\n
    \u4f20\u8f93\u534f\u8bae<\/td>\nTCP<\/td>\nTCP \u5ba2\u6237\u7aef\u65e0\u6cd5\u8fde\u63a5 UDP \u670d\u52a1<\/td>\n<\/tr>\n
    \u76ee\u6807\u5165\u53e3<\/td>\nLinux \u53ef\u8fbe IP + TCP 8888<\/td>\n\u8fde\u63a5\u5230\u9519\u8bef\u670d\u52a1\u6216\u6839\u672c\u65e0\u6cd5\u8fde\u63a5<\/td>\n<\/tr>\n
    \u8bf7\u6c42\u4e0e\u54cd\u5e94\u89c4\u5219<\/td>\n\u539f\u6837\u56de\u663e，\u56de\u590d\u5b57\u8282\u6570\u7b49\u4e8e\u8bf7\u6c42\u5b57\u8282\u6570<\/td>\n\u5ba2\u6237\u7aef\u53ef\u80fd\u7b49\u5f85\u4e0d\u8db3\u6216\u8bfb\u51fa\u591a\u4f59\u6570\u636e<\/td>\n<\/tr>\n
    \u6570\u636e\u89e3\u91ca<\/td>\n\u5148\u7528 ASCII \u6587\u672c，\u4e4b\u540e\u7ea6\u5b9a UTF-8<\/td>\n\u5b57\u8282\u76f8\u540c\u4e5f\u53ef\u80fd\u663e\u793a\u4e71\u7801<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    1.2 \u5b9e\u9a8c\u8981\u5f62\u6210\u4e00\u4e2a\u95ed\u73af<\/h4>\n

    \u672c\u6587\u7684\u901a\u4fe1\u8def\u5f84\u662f：<\/p>\n

    Windows \u8f93\u5165 hello
    \n \u2192 Winsock \u53d1\u9001 5 \u4e2a\u5b57\u8282
    \n \u2192 Linux recv \u8bfb\u53d6\u6570\u636e
    \n \u2192 Linux \u539f\u6837\u56de\u53d1
    \n \u2192 Windows \u7d2f\u79ef\u6536\u5230 5 \u4e2a\u5b57\u8282
    \n \u2192 \u6bd4\u8f83\u5e76\u663e\u793a\u56de\u663e\u7ed3\u679c<\/p>\n

    connect \u6210\u529f\u9a8c\u8bc1\u7684\u662f\u8fde\u63a5\u5efa\u7acb；\u6536\u5230\u7b26\u5408\u7ea6\u5b9a\u7684\u56de\u590d，\u624d\u628a\u5e94\u7528\u6536\u53d1\u4e5f\u7eb3\u5165\u4e86\u9a8c\u8bc1\u3002\u53ea\u770b\u5230\u201cConnected\u201d，\u8fd8\u4e0d\u80fd\u8bf4\u660e\u670d\u52a1\u5668\u4e1a\u52a1\u4ee3\u7801\u6b63\u786e\u3002<\/p>\n

    1.3 \u670d\u52a1\u5668\u770b\u5230\u7684\u6765\u6e90\u7aef\u53e3\u4e3a\u4ec0\u4e48\u4e0d\u662f 8888<\/h4>\n

    8888 \u662f Linux \u670d\u52a1\u7aef\u56fa\u5b9a\u7684\u76d1\u542c\u7aef\u53e3\u3002Windows \u5ba2\u6237\u7aef\u901a\u5e38\u4e0d\u663e\u5f0f bind，\u7531\u7cfb\u7edf\u5728\u8fde\u63a5\u65f6\u9009\u62e9\u672c\u5730\u5730\u5740\u548c\u4e34\u65f6\u7aef\u53e3\u3002\u56e0\u6b64\u670d\u52a1\u7aef\u53ef\u80fd\u6253\u5370：<\/p>\n

    Connected: 192.168.1.20:53042<\/p>\n

    \u8fd9\u91cc\u7684 53042 \u5c5e\u4e8e\u5ba2\u6237\u7aef，\u670d\u52a1\u5668\u4ecd\u7136\u901a\u8fc7\u81ea\u5df1\u7684 8888 \u63d0\u4f9b\u670d\u52a1\u3002\u82e5\u5ba2\u6237\u7aef\u7ecf\u8fc7 NAT，\u670d\u52a1\u5668\u770b\u5230\u7684\u8fd8\u53ef\u80fd\u662f NAT \u6620\u5c04\u540e\u7684\u5730\u5740\u4e0e\u7aef\u53e3，\u4e0d\u4e00\u5b9a\u4e0e Windows \u672c\u673a\u67e5\u770b\u7684\u7aef\u70b9\u4e00\u81f4\u3002<\/p>\n

    \n

    \u4e8c\u3001\u5148\u51c6\u5907\u597d\u670d\u52a1\u5165\u53e3\u4e0e\u7f51\u7edc\u8def\u5f84<\/h3>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    2.1 \u5ba2\u6237\u7aef\u5230\u5e95\u5e94\u8be5\u586b\u5199\u54ea\u4e2a IP<\/h4>\n

    \u7528\u4e0b\u9762\u7684\u8868\u5224\u65ad，\u800c\u4e0d\u662f\u5728\u4e0d\u540c\u573a\u666f\u91cc\u59cb\u7ec8\u586b\u5199 127.0.0.1：<\/p>\n\nLinux \u6240\u5728\u4f4d\u7f6eWindows \u5e94\u586b\u5199\u7684\u5730\u5740\u9700\u8981\u989d\u5916\u786e\u8ba4<\/tr>\n\n\n\n\n\n
    \u540c\u4e00\u5c40\u57df\u7f51\u4e2d\u7684\u53e6\u4e00\u53f0\u673a\u5668<\/td>\nLinux \u5c40\u57df\u7f51 IP<\/td>\n\u4e24\u7aef\u8def\u7531\u53ef\u8fbe，\u4e3b\u673a\u89c4\u5219\u5141\u8bb8<\/td>\n<\/tr>\n
    \u672c\u673a\u865a\u62df\u673a<\/td>\nWindows \u53ef\u8fbe\u7684\u865a\u62df\u673a\u5730\u5740<\/td>\n\u6865\u63a5\u3001Host-only\u3001NAT \u6216\u7aef\u53e3\u8f6c\u53d1\u914d\u7f6e<\/td>\n<\/tr>\n
    WSL \u73af\u5883<\/td>\n\u4f9d\u636e\u5f53\u524d\u7f51\u7edc\u6a21\u5f0f\u4f7f\u7528\u53ef\u8fbe\u5730\u5740<\/td>\nlocalhost \u8f6c\u53d1\u3001\u955c\u50cf\u7f51\u7edc\u7b49\u884c\u4e3a\u53d6\u51b3\u4e8e\u73af\u5883<\/td>\n<\/tr>\n
    \u4e91\u670d\u52a1\u5668<\/td>\n\u5b9e\u9645\u516c\u7f51 IP \u6216\u5df2\u914d\u7f6e\u7684\u53ef\u8fbe\u5165\u53e3<\/td>\n\u4e91\u5b89\u5168\u7ec4\u3001\u7cfb\u7edf\u9632\u706b\u5899\u3001\u6620\u5c04\u5173\u7cfb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    127.0.0.1 \u8868\u793a\u53d1\u8d77\u8bbf\u95ee\u7684\u5f53\u524d\u4e3b\u673a\u81ea\u5df1\u7684\u56de\u73af\u5730\u5740\u3002Windows \u8fde\u63a5 127.0.0.1 \u65f6，\u9ed8\u8ba4\u662f\u5728\u627e Windows \u672c\u673a\u670d\u52a1\u3002\u53ea\u6709\u73af\u5883\u660e\u786e\u63d0\u4f9b\u4e86\u8f6c\u53d1\u6216\u6620\u5c04，\u624d\u53ef\u80fd\u901a\u8fc7\u5b83\u8bbf\u95ee\u53e6\u4e00\u8fd0\u884c\u73af\u5883\u3002<\/p>\n

    \u6587\u4e2d\u5076\u5c14\u4f7f\u7528 203.0.113.10 \u8bf4\u660e\u516c\u7f51\u573a\u666f，\u5b83\u662f\u6587\u6863\u793a\u4f8b\u5730\u5740，\u4e0d\u80fd\u62ff\u6765\u76f4\u63a5\u8fde\u63a5\u3002\u5b9e\u9645\u8fd0\u884c\u65f6\u5fc5\u987b\u6362\u6210\u81ea\u5df1\u7684\u771f\u5b9e\u5730\u5740\u3002<\/p>\n

    2.2 bind 0.0.0.0 \u4e0e\u8fde\u63a5 0.0.0.0 \u4e0d\u662f\u540c\u4e00\u56de\u4e8b<\/h4>\n

    Linux \u670d\u52a1\u7aef\u53ef\u4ee5\u7ed1\u5b9a 0.0.0.0:8888，\u8868\u793a\u5728\u672c\u5730\u6240\u6709\u9002\u7528\u7684 IPv4 \u5730\u5740\u4e0a\u63a5\u53d7\u8be5\u7aef\u53e3\u7684\u8fde\u63a5\u3002\u5b83\u4e0d\u662f\u5ba2\u6237\u7aef\u5e94\u8be5\u586b\u5199\u7684\u8fdc\u7aef\u5730\u5740\u3002<\/p>\n

    \u5982\u679c\u670d\u52a1\u5668\u53ea\u7ed1\u5b9a 127.0.0.1:8888，\u672c\u673a\u6d4b\u8bd5\u53ef\u80fd\u901a\u8fc7，\u5176\u4ed6\u673a\u5668\u8bbf\u95ee\u5374\u5931\u8d25\u3002\u628a\u76d1\u542c\u5730\u5740\u6539\u4e3a\u5408\u9002\u7684\u7f51\u5361\u5730\u5740\u6216\u901a\u914d\u5730\u5740，\u624d\u80fd\u8ba9\u7f51\u7edc\u8def\u5f84\u4e0a\u7684\u76ee\u6807\u5165\u53e3\u4e0e\u76d1\u542c\u8303\u56f4\u5339\u914d\u3002<\/p>\n

    \u4e91\u670d\u52a1\u5668\u7684\u516c\u7f51\u5730\u5740\u53ef\u80fd\u7531\u5e73\u53f0\u6620\u5c04\u5230\u5b9e\u4f8b\u5185\u7f51\u5730\u5740，\u5e76\u4e0d\u4e00\u5b9a\u76f4\u63a5\u914d\u7f6e\u5728 Linux \u7f51\u5361\u4e0a\u3002\u8fd9\u65f6\u4e0d\u8981\u76f2\u76ee\u628a\u516c\u7f51 IP \u5199\u8fdb bind；\u5e94\u6839\u636e\u5b9e\u9645\u7f51\u5361\u4e0e\u6620\u5c04\u914d\u7f6e\u9009\u62e9\u672c\u5730\u7ed1\u5b9a\u5730\u5740\u3002<\/p>\n

    2.3 \u653e\u884c\u7684\u662f TCP \u7aef\u53e3<\/h4>\n

    \u4ece\u4e4b\u524d\u7684 UDP \u5b9e\u9a8c\u8fc7\u6e21\u8fc7\u6765，\u6700\u5bb9\u6613\u7559\u4e0b\u4e00\u4e2a\u914d\u7f6e\u8bef\u5dee：\u5b89\u5168\u7ec4\u53ea\u5f00\u653e\u4e86 8888\/udp\u3002<\/p>\n

    \u672c\u7bc7\u7528\u7684\u662f TCP，\u5e94\u786e\u8ba4\u5141\u8bb8\u8bbf\u95ee 8888\/tcp\u3002\u4e91\u4fa7\u5b89\u5168\u7ec4\u548c Linux \u4e3b\u673a\u9632\u706b\u5899\u662f\u4e24\u4e2a\u68c0\u67e5\u70b9；\u670d\u52a1\u7aef\u80fd\u542f\u52a8，\u4e0d\u4ee3\u8868\u7f51\u7edc\u8bf7\u6c42\u4e00\u5b9a\u80fd\u7a7f\u8fc7\u5b83\u4eec\u3002<\/p>\n

    \u4f8b\u5982\u670d\u52a1\u5668\u786e\u5b9e\u4f7f\u7528 UFW \u65f6，\u53ef\u4ee5\u6309\u5b9e\u9a8c\u6765\u6e90\u5730\u5740\u6dfb\u52a0\u4e00\u6761\u89c4\u5219：<\/p>\n

    # \u5c06 192.168.1.20 \u6362\u6210\u670d\u52a1\u7aef\u5b9e\u9645\u770b\u5230\u7684\u5b9e\u9a8c\u6765\u6e90\u5730\u5740<\/span>
    \nsudo<\/span> ufw allow from 192.168<\/span>.1.20 to any port 8888<\/span> proto tcp<\/p>\n

    \u5982\u679c\u673a\u5668\u4e0d\u4f7f\u7528 UFW，\u5c31\u68c0\u67e5\u5b9e\u9645\u542f\u7528\u7684\u9632\u706b\u5899\u4f53\u7cfb\u3002\u4e0d\u8981\u4e3a\u4e86\u6d4b\u8bd5\u4e00\u6b21\u8fde\u63a5，\u628a\u5df2\u6709\u9632\u62a4\u89c4\u5219\u5168\u90e8\u5173\u95ed\u3002<\/p>\n

    \n

    \u4e09\u3001Winsock \u4e0e Linux Socket \u6709\u54ea\u4e9b\u4e0d\u540c<\/h3>\n

    \u5f88\u591a\u51fd\u6570\u540d\u79f0\u76f8\u540c，\u4f46\u79fb\u690d\u65f6\u4e0d\u80fd\u53ea\u66ff\u6362\u5934\u6587\u4ef6\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    3.1 \u5934\u6587\u4ef6\u8d1f\u8d23\u58f0\u660e，\u94fe\u63a5\u5e93\u63d0\u4f9b\u5b9e\u73b0\u5165\u53e3<\/h4>\n

    Windows \u5ba2\u6237\u7aef\u5305\u542b：<\/p>\n

    #<\/span>include<\/span> <winsock2.h><\/span><\/span>
    \n#<\/span>include<\/span> <ws2tcpip.h><\/span><\/span><\/p>\n

    winsock2.h \u63d0\u4f9b Winsock \u7684\u6838\u5fc3\u7c7b\u578b\u548c\u51fd\u6570\u58f0\u660e，ws2tcpip.h \u63d0\u4f9b\u672c\u6587\u4f7f\u7528\u7684\u5730\u5740\u8f6c\u6362\u7b49\u76f8\u5173\u58f0\u660e\u3002MSVC \u8fd8\u9700\u8981\u94fe\u63a5 Ws2_32.lib：<\/p>\n

    #<\/span>pragma<\/span> comment<\/span>(<\/span>lib,<\/span> <\/span>"Ws2_32.lib"<\/span>)<\/span><\/span><\/span><\/p>\n

    \u8fd9\u91cc\u89e3\u51b3\u7684\u662f\u94fe\u63a5\u9636\u6bb5\u7684\u4f9d\u8d56\u3002\u5305\u542b\u5934\u6587\u4ef6\u540e，\u7f16\u8bd1\u5668\u80fd\u8bc6\u522b socket \u7684\u58f0\u660e；\u94fe\u63a5\u65f6\u8fd8\u8981\u627e\u5230\u76f8\u5e94\u5b9e\u73b0\u3002\u5982\u679c\u51fa\u73b0 unresolved external symbol \u6216 LNK2019，\u5e94\u68c0\u67e5\u94fe\u63a5\u914d\u7f6e\u3002<\/p>\n

    \u968f\u9644\u4ee3\u7801\u628a #pragma comment \u653e\u5728 _MSC_VER \u6761\u4ef6\u5185\u3002MinGW-w64 \u4f7f\u7528 -lws2_32 \u663e\u5f0f\u94fe\u63a5，\u4e0d\u80fd\u53ea\u4f9d\u9760 MSVC \u7684 pragma\u3002<\/p>\n

    3.2 SOCKET \u4e0d\u662f Linux \u7684 int \u6587\u4ef6\u63cf\u8ff0\u7b26<\/h4>\n\n\u9879\u76eeWindows \/ WinsockLinux<\/tr>\n\n\n\n\n\n\n\n\n
    \u53e5\u67c4\u7c7b\u578b<\/td>\nSOCKET<\/td>\nint \u6587\u4ef6\u63cf\u8ff0\u7b26<\/td>\n<\/tr>\n
    \u521b\u5efa\u5931\u8d25<\/td>\nINVALID_SOCKET<\/td>\n-1<\/td>\n<\/tr>\n
    \u5e38\u89c1\u63a5\u53e3\u5931\u8d25<\/td>\nSOCKET_ERROR<\/td>\n-1<\/td>\n<\/tr>\n
    \u83b7\u53d6\u9519\u8bef\u539f\u56e0<\/td>\nWSAGetLastError()<\/td>\nerrno<\/td>\n<\/tr>\n
    \u5173\u95ed Socket<\/td>\nclosesocket()<\/td>\nclose()<\/td>\n<\/tr>\n
    \u4f7f\u7528\u524d\u51c6\u5907<\/td>\nWSAStartup()<\/td>\n\u4e0d\u9700\u8981\u5bf9\u5e94\u7684\u5e93\u521d\u59cb\u5316<\/td>\n<\/tr>\n
    \u4f7f\u7528\u540e\u6536\u5c3e<\/td>\nWSACleanup()<\/td>\n\u4e0d\u9700\u8981\u5bf9\u5e94\u7684\u5e93\u6536\u5c3e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5728 Windows \u91cc，\u5e94\u8be5\u4fdd\u5b58 SOCKET \u5e76\u4e0e INVALID_SOCKET \u6bd4\u8f83，\u4e0d\u8981\u76f4\u63a5\u5957\u7528 Linux \u7684 fd < 0 \u68c0\u67e5\u3002\u5b83\u4e5f\u662f\u5f53\u524d\u8fdb\u7a0b\u4f7f\u7528\u8d44\u6e90\u7684\u53e5\u67c4，\u4e0d\u662f\u4e00\u4e2a\u5728\u6574\u4e2a\u7f51\u7edc\u4e2d\u5168\u5c40\u552f\u4e00\u7684\u7f16\u53f7\u3002<\/p>\n

    3.3 WSAStartup \u7684\u8fd4\u56de\u503c\u8981\u5355\u72ec\u5904\u7406<\/h4>\n

    WSADATA data{<\/span>}<\/span>;<\/span>
    \nint<\/span> rc =<\/span> WSAStartup<\/span>(<\/span>MAKEWORD<\/span>(<\/span>2<\/span>,<\/span> 2<\/span>)<\/span>,<\/span> &<\/span>data)<\/span>;<\/span>
    \nif<\/span> (<\/span>rc !=<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "WSAStartup failed: "<\/span> <<<\/span> rc <<<\/span> '\\\\n'<\/span>;<\/span>
    \n}<\/span><\/p>\n

    \u8fd9\u6b21\u8bf7\u6c42\u4f7f\u7528 Winsock 2.2\u3002\u521d\u59cb\u5316\u6210\u529f\u540e，\u5e94\u7528\u624d\u80fd\u7ee7\u7eed\u4f7f\u7528\u5e38\u89c4 Winsock \u63a5\u53e3；\u8fd4\u56de\u7684 data.wVersion \u8868\u793a\u534f\u5546\u7684\u7248\u672c，\u793a\u4f8b\u4f1a\u786e\u8ba4\u5b83\u6ee1\u8db3\u8981\u6c42\u3002<\/p>\n

    WSAStartup \u5931\u8d25\u65f6\u76f4\u63a5\u4f7f\u7528\u5b83\u7684\u8fd4\u56de\u503c\u4f5c\u4e3a\u9519\u8bef\u7801\u3002 \u5176\u4ed6\u5e38\u89c4 Socket \u64cd\u4f5c\u5931\u8d25\u540e，\u624d\u7acb\u5373\u8c03\u7528 WSAGetLastError \u8bfb\u53d6\u539f\u56e0\u3002Microsoft：WSAStartup<\/p>\n

    3.4 \u8d44\u6e90\u91ca\u653e\u8981\u6309\u62e5\u6709\u5173\u7cfb\u6536\u5c3e<\/h4>\n

    \u672c\u7bc7\u58f0\u660e Winsock \u8fd0\u884c\u73af\u5883\u5bf9\u8c61\u540e，\u518d\u58f0\u660e\u5ba2\u6237\u7aef Socket \u5bf9\u8c61\u3002\u5c40\u90e8\u5bf9\u8c61\u6309\u6784\u9020\u7684\u9006\u5e8f\u6790\u6784，\u56e0\u6b64\u5148 closesocket，\u540e WSACleanup\u3002\u6b63\u5e38\u9000\u51fa\u3001\u5730\u5740\u65e0\u6548\u3001\u8fde\u63a5\u5931\u8d25\u6216\u6536\u53d1\u5f02\u5e38，\u90fd\u53ef\u4ee5\u6cbf\u540c\u4e00\u6761\u8d44\u6e90\u91ca\u653e\u8def\u5f84\u6536\u5c3e\u3002<\/p>\n

    \u8fd9\u5c31\u662f\u8fd9\u91cc\u4f7f\u7528 RAII \u7684\u539f\u56e0：\u628a\u91ca\u653e\u8d23\u4efb\u7ed1\u5b9a\u5230\u5bf9\u8c61\u751f\u547d\u5468\u671f，\u51cf\u5c11\u6bcf\u4e2a\u9519\u8bef\u5206\u652f\u91cc\u91cd\u590d\u5173\u95ed\u7684\u4ee3\u7801\u3002\u7981\u6b62\u590d\u5236\u62e5\u6709\u8d44\u6e90\u7684\u5bf9\u8c61，\u5219\u907f\u514d\u4e24\u4e2a\u5bf9\u8c61\u5173\u95ed\u540c\u4e00\u4e2a\u53e5\u67c4\u3002<\/p>\n

    \n

    \u56db\u3001\u9010\u6b65\u8bfb\u61c2\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u6d41\u7a0b<\/h3>\n

    \u5ba2\u6237\u7aef\u7684\u5b8c\u6574\u94fe\u8def\u662f：<\/p>\n

    WSAStartup \u2192 socket \u2192 \u51c6\u5907\u5730\u5740 \u2192 connect
    \n \u2192 send \/ recv \u5faa\u73af \u2192 closesocket \u2192 WSACleanup<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    4.1 \u521b\u5efa\u4e00\u4e2a TCP Socket<\/h4>\n

    SOCKET s =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> IPPROTO_TCP)<\/span>;<\/span>
    \nif<\/span> (<\/span>s ==<\/span> INVALID_SOCKET)<\/span> {<\/span>
    \n int<\/span> code =<\/span> WSAGetLastError<\/span>(<\/span>)<\/span>;<\/span>
    \n \/\/ \u4fdd\u5b58\u5e76\u62a5\u544a code\u3002<\/span>
    \n}<\/span><\/p>\n

    AF_INET \u9009\u62e9 IPv4；SOCK_STREAM \u9009\u62e9\u6d41\u5f0f\u901a\u4fe1；IPPROTO_TCP \u663e\u5f0f\u6307\u5b9a TCP\u3002\u521b\u5efa\u6210\u529f\u53ea\u4ee3\u8868\u62ff\u5230\u901a\u4fe1\u8d44\u6e90，\u8fd8\u6ca1\u6709\u8fde\u63a5\u5230 Linux \u670d\u52a1\u5668\u3002<\/p>\n

    4.2 \u628a\u6587\u672c\u5730\u5740\u8f6c\u6362\u6210\u5730\u5740\u7ed3\u6784<\/h4>\n

    sockaddr_in server{<\/span>}<\/span>;<\/span>
    \nserver.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \nserver.<\/span>sin_port =<\/span> htons<\/span>(<\/span>8888<\/span>)<\/span>;<\/span>
    \nint<\/span> rc =<\/span> InetPtonA<\/span>(<\/span>AF_INET,<\/span> "192.168.1.10"<\/span>,<\/span> &<\/span>server.<\/span>sin_addr)<\/span>;<\/span><\/p>\n

    {} \u5148\u521d\u59cb\u5316\u7ed3\u6784\u4f53；htons \u628a\u7aef\u53e3\u5199\u6210\u7f51\u7edc\u5b57\u8282\u5e8f；InetPtonA \u628a IPv4 \u6587\u672c\u8f6c\u6362\u4e3a\u7f51\u7edc\u683c\u5f0f\u7684\u5730\u5740\u3002\u8fd9\u91cc\u7684\u5730\u5740\u4ec5\u4f5c\u5c40\u57df\u7f51\u793a\u4f8b，\u8981\u66ff\u6362\u6210\u81ea\u5df1\u7684 Linux \u5730\u5740\u3002<\/p>\n

    \u8bb2\u4e49\u4f7f\u7528 inet_addr \u5e76\u5173\u95ed\u76f8\u5173\u8b66\u544a\u3002\u672c\u6587\u6539\u7528 InetPtonA，\u660e\u786e\u533a\u5206\u8f6c\u6362\u6210\u529f\u3001\u5730\u5740\u6587\u672c\u65e0\u6548\u548c\u63a5\u53e3\u9519\u8bef，\u4e0d\u9700\u8981\u5c4f\u853d\u6574\u4e2a 4996 \u8b66\u544a\u3002\u5b83\u5904\u7406\u7684\u662f\u6570\u5b57\u5f62\u5f0f\u7684 IP \u5730\u5740，\u4e0d\u8d1f\u8d23\u89e3\u6790\u57df\u540d；\u5982\u679c\u5c06\u6765\u9700\u8981\u8fde\u63a5\u57df\u540d，\u518d\u5f15\u5165 getaddrinfo\u3002<\/p>\n

    4.3 connect \u4f7f\u7528\u7684\u662f\u8fdc\u7aef\u5730\u5740<\/h4>\n

    int<\/span> rc =<\/span> connect<\/span>(<\/span>s,<\/span> reinterpret_cast<\/span><<\/span>sockaddr*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>server)<\/span>,<\/span> sizeof<\/span>(<\/span>server)<\/span>)<\/span>;<\/span><\/p>\n

    \u5730\u5740\u7ed3\u6784\u63cf\u8ff0\u201c\u8981\u8fde\u63a5\u8c01\u201d，\u4e0d\u662f\u7ed9\u5ba2\u6237\u7aef\u914d\u7f6e\u4e00\u4e2a\u56fa\u5b9a\u672c\u5730\u7aef\u53e3\u3002\u672c\u7bc7\u6ca1\u6709\u7279\u6b8a\u7684\u672c\u5730\u5730\u5740\u9700\u6c42，\u6240\u4ee5\u4e0d\u663e\u5f0f bind，\u8ba9\u7cfb\u7edf\u9009\u62e9\u672c\u5730\u7aef\u70b9\u3002<\/p>\n

    \u8fd9\u91cc\u4f7f\u7528\u963b\u585e\u5f0f Socket\u3002connect \u6210\u529f\u540e\u8fdb\u5165\u901a\u4fe1\u9636\u6bb5；\u5931\u8d25\u5c31\u8bb0\u5f55\u9519\u8bef\u7801\u5e76\u9000\u51fa\u3002\u672c\u7bc7\u6ca1\u6709\u81ea\u52a8\u91cd\u8fde，\u65ad\u7ebf\u91cd\u8fde\u5c5e\u4e8e\u4e0b\u4e00\u4efd\u52a0\u9910\u7684\u4e3b\u9898\u3002<\/p>\n

    4.4 \u670d\u52a1\u7aef\u5fc5\u987b\u5148\u8fdb\u5165\u76d1\u542c\u72b6\u6001<\/h4>\n

    \u5bf9\u5e94\u7684 Linux \u6d41\u7a0b\u662f：<\/p>\n

    socket \u2192 bind \u2192 listen \u2192 accept \u2192 recv \/ send<\/p>\n

    accept \u8fd4\u56de\u4e00\u4e2a\u7528\u4e8e\u8fd9\u6761\u8fde\u63a5\u7684\u65b0 Socket\u3002\u76d1\u542c Socket \u7ee7\u7eed\u627f\u62c5\u63a5\u53d7\u8fde\u63a5\u7684\u804c\u8d23，\u6570\u636e\u6536\u53d1\u4f7f\u7528\u65b0\u83b7\u5f97\u7684\u8fde\u63a5 Socket\u3002\u628a\u6570\u636e\u53d1\u9001\u5230\u76d1\u542c Socket \u4e0a，\u662f\u5bf9\u89d2\u8272\u7684\u6df7\u6dc6\u3002<\/p>\n

    \n

    \u4e94\u3001\u539f\u59cb\u6536\u53d1\u5faa\u73af\u91cc\u6709\u54ea\u4e9b\u9690\u85cf\u95ee\u9898<\/h3>\n

    \u8bb2\u4e49\u4f7f\u7528\u4e00\u4e2a\u76f4\u89c2\u7684\u5faa\u73af：\u8f93\u5165\u4e00\u884c，\u8c03\u7528\u4e00\u6b21 send，\u8c03\u7528\u4e00\u6b21 recv，\u7136\u540e\u6253\u5370\u3002\u8fd9\u80fd\u5e2e\u52a9\u6211\u4eec\u8fc5\u901f\u770b\u5230\u8de8\u5e73\u53f0\u901a\u4fe1，\u4f46\u4e0d\u80fd\u7531\u6b64\u63a8\u51fa TCP \u4e00\u6b21\u53d1\u9001\u5c31\u5bf9\u5e94\u4e00\u6b21\u63a5\u6536\u3002<\/p>\n

    5.1 TCP \u63d0\u4f9b\u5b57\u8282\u6d41，\u4e0d\u4fdd\u7559 send \u7684\u6d88\u606f\u8fb9\u754c<\/h4>\n

    \u5047\u8bbe\u5ba2\u6237\u7aef\u8fde\u7eed\u53d1\u9001 hello \u548c world，\u670d\u52a1\u5668\u8bfb\u53d6\u65f6\u53ef\u80fd\u5f97\u5230：<\/p>\n

    hello | world
    \nhel | lowor | ld
    \nhelloworld<\/p>\n

    \u8fd9\u4e9b\u4f8b\u5b50\u8868\u8fbe\u7684\u662f\u5e94\u7528\u8bfb\u53d6\u7684\u5206\u7ec4\u53ef\u4ee5\u53d8\u5316，\u5b57\u8282\u987a\u5e8f\u4ecd\u4fdd\u6301\u4e00\u81f4，\u4e0d\u662f\u8bf4\u6570\u636e\u4f1a\u968f\u610f\u4e22\u5931\u3001\u91cd\u590d\u6216\u91cd\u6392\u3002\u5b9e\u9645\u5982\u4f55\u5206\u7ec4\u53d6\u51b3\u4e8e\u7f51\u7edc\u3001\u7f13\u51b2\u548c\u8bfb\u53d6\u65f6\u673a，\u4e0d\u80fd\u7528\u4e00\u6b21\u77ed\u6d88\u606f\u5b9e\u9a8c\u6765\u63a8\u65ad\u957f\u671f\u884c\u4e3a\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    5.2 send \u7684\u8fd4\u56de\u503c\u4e0d\u80fd\u5ffd\u7565<\/h4>\n

    send \u6210\u529f\u8fd4\u56de\u7684\u662f\u672c\u6b21\u63a5\u53d7\u53d1\u9001\u7684\u5b57\u8282\u6570，\u5b83\u53ef\u80fd\u5c0f\u4e8e\u8bf7\u6c42\u957f\u5ea6；\u5931\u8d25\u8fd4\u56de SOCKET_ERROR\u3002\u6240\u4ee5\u8981\u7528\u504f\u79fb\u91cf\u63a8\u8fdb，\u76f4\u5230\u53d1\u9001\u5b8c\u5f53\u524d\u5185\u5bb9\u6216\u9047\u5230\u9519\u8bef\u3002Microsoft：send<\/p>\n

    \u5f85\u53d1\u9001 8 \u5b57\u8282
    \n\u7b2c\u4e00\u6b21 send \u8fd4\u56de 3 \u2192 \u4e0b\u4e00\u6b21\u4ece\u504f\u79fb 3 \u5f00\u59cb
    \n\u7b2c\u4e8c\u6b21 send \u8fd4\u56de 5 \u2192 \u7d2f\u8ba1 8，\u5f53\u524d\u53d1\u9001\u5b8c\u6210<\/p>\n

    \u8fd9\u91cc\u7684 3 + 5 \u53ea\u662f\u8fd4\u56de\u503c\u8bed\u4e49\u793a\u610f，\u5b9e\u9645\u8fd0\u884c\u4e0d\u4e00\u5b9a\u51fa\u73b0\u8fd9\u79cd\u5212\u5206\u3002\u5373\u4f7f\u5168\u90e8\u5b57\u8282\u90fd\u4ea4\u7ed9\u4e86\u672c\u673a\u7f51\u7edc\u6808，\u4e5f\u4e0d\u80fd\u628a\u5b83\u76f4\u63a5\u89e3\u91ca\u6210\u201c\u8fdc\u7aef\u4e1a\u52a1\u5df2\u7ecf\u5904\u7406\u5b8c\u6bd5\u201d\u3002\u56de\u663e\u5185\u5bb9\u63d0\u4f9b\u4e86\u66f4\u8fdb\u4e00\u6b65\u7684\u5e94\u7528\u5c42\u89c2\u5bdf\u3002<\/p>\n

    5.3 recv \u7684\u4e09\u4e2a\u5206\u652f\u4e0d\u80fd\u5408\u5e76<\/h4>\n

    \u5bf9\u672c\u6587\u7684\u963b\u585e\u5f0f TCP Socket，\u4f20\u5165\u975e\u96f6\u63a5\u6536\u5bb9\u91cf\u65f6：<\/p>\n\n\u8fd4\u56de\u503c\u5e94\u5982\u4f55\u7406\u89e3\u672c\u7bc7\u5904\u7406<\/tr>\n\n\n\n\n
    n > 0<\/td>\n\u8fd9\u6b21\u8bfb\u5230\u4e86 n \u4e2a\u5b57\u8282<\/td>\n\u6309 n \u7d2f\u79ef\u56de\u590d<\/td>\n<\/tr>\n
    n == 0<\/td>\n\u5bf9\u7aef\u53d1\u9001\u65b9\u5411\u6b63\u5e38\u7ed3\u675f，\u5df2\u6709\u6570\u636e\u8bfb\u5b8c<\/td>\n\u7ed3\u675f\u8bfb\u53d6；\u82e5\u9884\u671f\u56de\u590d\u672a\u6ee1，\u62a5\u544a\u4e0d\u5b8c\u6574<\/td>\n<\/tr>\n
    n == SOCKET_ERROR<\/td>\n\u63a5\u6536\u64cd\u4f5c\u5931\u8d25<\/td>\n\u7acb\u5373\u8bfb\u53d6\u9519\u8bef\u7801\u5e76\u9000\u51fa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u56e0\u6b64\u8bb2\u4e49\u91cc\u7edf\u4e00\u6253\u5370 recv failed \u7684 else \u5206\u652f，\u9700\u8981\u8fdb\u4e00\u6b65\u7ec6\u5206\u3002\u6b63\u5e38\u7ed3\u675f\u4e0e\u5f02\u5e38\u5931\u8d25\u4e0d\u662f\u540c\u4e00\u79cd\u72b6\u6001\u3002Microsoft：recv<\/p>\n

    5.4 \u7f13\u51b2\u533a\u4e0d\u662f\u81ea\u52a8\u5b8c\u6574\u7684\u5b57\u7b26\u4e32<\/h4>\n

    recv \u8fd4\u56de\u4e00\u6bb5\u5b57\u8282\u548c\u5b83\u7684\u957f\u5ea6，\u5e76\u4e0d\u81ea\u52a8\u4fdd\u8bc1\u672b\u5c3e\u5b58\u5728 \\\\0\u3002\u5bf9\u4e8e\u6587\u672c，\u9884\u7559\u4e00\u4e2a\u5b57\u8282\u8865\u96f6\u662f\u4e00\u79cd\u6253\u5370\u65b9\u6cd5；\u4f46\u66f4\u901a\u7528\u7684\u505a\u6cd5\u662f\u6309\u8fd4\u56de\u503c\u6784\u9020\u6216\u8ffd\u52a0：<\/p>\n

    reply.<\/span>append<\/span>(<\/span>buffer,<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>)<\/span>;<\/span><\/p>\n

    \u8fd9\u6837\u4e0d\u4f1a\u628a\u65e7\u7f13\u51b2\u533a\u5185\u5bb9\u62fc\u8fdb\u53bb，\u4e5f\u4e0d\u628a\u6b63\u6587\u5185\u90e8\u7684\u96f6\u5b57\u8282\u8bef\u5f53\u6210\u5185\u5bb9\u7ed3\u675f\u3002\u672c\u7bc7\u4f7f\u7528 std::string \u4fdd\u5b58\u5b57\u8282，\u6700\u7ec8\u6bd4\u8f83\u5185\u5bb9\u662f\u5426\u4e0e\u53d1\u9001\u5185\u5bb9\u4e00\u81f4\u3002<\/p>\n

    5.5 \u4ec0\u4e48\u65f6\u5019\u77e5\u9053\u56de\u590d\u5df2\u7ecf\u5b8c\u6574<\/h4>\n

    \u8fd9\u624d\u662f\u6bd4\u201c\u628a\u7f13\u51b2\u533a\u5f00\u5927\u4e00\u70b9\u201d\u66f4\u5173\u952e\u7684\u95ee\u9898\u3002\u672c\u6587\u9009\u62e9\u4e00\u4e2a\u5f88\u5c0f\u7684\u5e94\u7528\u7ea6\u5b9a：<\/p>\n

    \u4e00\u6b21\u53ea\u53d1\u9001\u4e00\u4e2a\u975e\u7a7a\u8bf7\u6c42；\u670d\u52a1\u7aef\u539f\u6837\u56de\u663e；\u5ba2\u6237\u7aef\u6536\u6ee1\u672c\u6b21\u8bf7\u6c42\u7684\u5b57\u8282\u6570\u540e，\u624d\u63a5\u53d7\u4e0b\u4e00\u6b21\u8f93\u5165\u3002<\/p>\n

    \u5047\u8bbe\u8bf7\u6c42\u6709 5 \u5b57\u8282，\u7b2c\u4e00\u6b21 recv \u53ea\u8bfb\u5230 2 \u5b57\u8282，\u5c31\u7ee7\u7eed\u7b49\u5269\u4f59 3 \u5b57\u8282\u3002\u8fd9\u89e3\u51b3\u5f53\u524d\u56de\u663e\u5b9e\u9a8c\u7684\u5b8c\u6210\u5224\u65ad，\u4f46\u5b83\u4e0d\u662f\u901a\u7528\u6d88\u606f\u534f\u8bae\u3002\u5b83\u4f9d\u8d56\u670d\u52a1\u5668\u4e0d\u52a0\u540e\u7f00\u3001\u4e0d\u4e3b\u52a8\u63a8\u9001\u5176\u4ed6\u5185\u5bb9\u3002<\/p>\n

    \u5982\u679c\u4e1a\u52a1\u6539\u6210\u201c\u8f93\u5165\u5355\u8bcd，\u8fd4\u56de\u4e0d\u540c\u957f\u5ea6\u7684\u89e3\u91ca\u201d，\u5ba2\u6237\u7aef\u5c31\u4e0d\u80fd\u518d\u6309\u8bf7\u6c42\u957f\u5ea6\u6536\u56de\u590d\u3002\u9700\u8981\u53e6\u5916\u7ea6\u5b9a\u5206\u9694\u7b26\u3001\u56fa\u5b9a\u957f\u5ea6\u6216\u8005\u957f\u5ea6\u5b57\u6bb5，\u8fd9\u5c06\u8fdb\u5165\u5e94\u7528\u5c42\u534f\u8bae\u8bbe\u8ba1\u3002<\/p>\n

    5.6 \u8f93\u5165 EOF \u4e5f\u9700\u8981\u9000\u51fa<\/h4>\n

    \u8bb2\u4e49\u7684 while (true) \u6ca1\u6709\u68c0\u67e5 getline \u662f\u5426\u6210\u529f\u3002\u8f93\u5165\u6d41\u7ed3\u675f\u540e，\u5faa\u73af\u53ef\u80fd\u53cd\u590d\u5c1d\u8bd5\u8bfb\u53d6，\u6b63\u5e38\u6e05\u7406\u4ee3\u7801\u4e5f\u6ca1\u6709\u81ea\u7136\u6267\u884c\u673a\u4f1a\u3002<\/p>\n

    \u672c\u7bc7\u628a getline \u7684\u7ed3\u679c\u653e\u8fdb\u5faa\u73af\u6761\u4ef6，\u5e76\u6dfb\u52a0\u672c\u5730\u9000\u51fa\u547d\u4ee4 \/quit\u3002\u7a7a\u884c\u7ee7\u7eed\u8df3\u8fc7，\u907f\u514d\u628a\u201c0 \u5b57\u8282\u53d1\u9001\u201d\u8bef\u5f53\u6210\u4e00\u4e2a\u670d\u52a1\u5668\u80fd\u8bc6\u522b\u7684\u72ec\u7acb\u8bf7\u6c42\u3002TCP \u4e0d\u4f1a\u56e0\u4e3a\u8c03\u7528\u4e00\u6b21\u957f\u5ea6\u4e3a\u96f6\u7684 send，\u5c31\u7ed9\u5bf9\u7aef\u5236\u9020\u4e00\u4e2a\u6d88\u606f\u8fb9\u754c\u3002<\/p>\n

    \n

    \u516d\u3001\u5b8c\u6574\u7684 Windows TCP \u5ba2\u6237\u7aef<\/h3>\n

    \u628a\u4e0b\u9762\u4ee3\u7801\u4fdd\u5b58\u4e3a code\/tcp_client_windows.cpp\u3002IP \u548c\u7aef\u53e3\u901a\u8fc7\u547d\u4ee4\u884c\u4f20\u5165，\u907f\u514d\u6bcf\u6b21\u66f4\u6362 Linux \u5730\u5740\u90fd\u9700\u8981\u4fee\u6539\u6e90\u7801\u91cd\u65b0\u7f16\u8bd1\u3002<\/p>\n

    #<\/span>ifndef<\/span> _WIN32_WINNT<\/span><\/span>
    \n#<\/span>define<\/span> _WIN32_WINNT<\/span> 0x0600<\/span><\/span><\/span>
    \n#<\/span>endif<\/span><\/span>
    \n#<\/span>ifndef<\/span> NOMINMAX<\/span><\/span>
    \n#<\/span>define<\/span> NOMINMAX<\/span><\/span>
    \n#<\/span>endif<\/span><\/span>
    \n#<\/span>include<\/span> <winsock2.h><\/span><\/span>
    \n#<\/span>include<\/span> <ws2tcpip.h><\/span><\/span>
    \n#<\/span>include<\/span> <algorithm><\/span><\/span>
    \n#<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <stdexcept><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span><\/p>\n

    #<\/span>ifdef<\/span> _MSC_VER<\/span><\/span>
    \n#<\/span>pragma<\/span> comment<\/span>(<\/span>lib,<\/span> <\/span>"Ws2_32.lib"<\/span>)<\/span><\/span><\/span>
    \n#<\/span>endif<\/span><\/span><\/p>\n

    struct<\/span> Winsock<\/span> {<\/span>
    \n Winsock<\/span>(<\/span>)<\/span> {<\/span>
    \n WSADATA data{<\/span>}<\/span>;<\/span>
    \n int<\/span> rc =<\/span> WSAStartup<\/span>(<\/span>MAKEWORD<\/span>(<\/span>2<\/span>,<\/span> 2<\/span>)<\/span>,<\/span> &<\/span>data)<\/span>;<\/span>
    \n if<\/span> (<\/span>rc !=<\/span> 0<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"WSAStartup: "<\/span> +<\/span> std::<\/span>to_string<\/span>(<\/span>rc)<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>LOBYTE<\/span>(<\/span>data.<\/span>wVersion)<\/span> !=<\/span> 2<\/span> ||<\/span> HIBYTE<\/span>(<\/span>data.<\/span>wVersion)<\/span> !=<\/span> 2<\/span>)<\/span> {<\/span>
    \n WSACleanup<\/span>(<\/span>)<\/span>;<\/span>
    \n throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"Winsock 2.2 unavailable"<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n ~<\/span>Winsock<\/span>(<\/span>)<\/span> {<\/span> WSACleanup<\/span>(<\/span>)<\/span>;<\/span> }<\/span>
    \n Winsock<\/span>(<\/span>const<\/span> Winsock&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n Winsock&<\/span> operator<\/span>=<\/span>(<\/span>const<\/span> Winsock&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n}<\/span>;<\/span><\/p>\n

    struct<\/span> Socket<\/span> {<\/span>
    \n SOCKET value =<\/span> INVALID_SOCKET;<\/span>
    \n Socket<\/span>(<\/span>)<\/span> =<\/span> default<\/span>;<\/span>
    \n ~<\/span>Socket<\/span>(<\/span>)<\/span> {<\/span> if<\/span> (<\/span>value !=<\/span> INVALID_SOCKET)<\/span> closesocket<\/span>(<\/span>value)<\/span>;<\/span> }<\/span>
    \n Socket<\/span>(<\/span>const<\/span> Socket&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n Socket&<\/span> operator<\/span>=<\/span>(<\/span>const<\/span> Socket&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n}<\/span>;<\/span><\/p>\n

    [<\/span>[<\/span>noreturn]<\/span>]<\/span> void<\/span> socket_error<\/span>(<\/span>const<\/span> char<\/span>*<\/span> where)<\/span> {<\/span>
    \n int<\/span> code =<\/span> WSAGetLastError<\/span>(<\/span>)<\/span>;<\/span>
    \n throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>std::<\/span>string<\/span>(<\/span>where)<\/span> +<\/span> ": "<\/span> +<\/span> std::<\/span>to_string<\/span>(<\/span>code)<\/span>)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    unsigned<\/span> short<\/span> parse_port<\/span>(<\/span>const<\/span> std::<\/span>string&<\/span> text)<\/span> {<\/span>
    \n if<\/span> (<\/span>text.<\/span>empty<\/span>(<\/span>)<\/span> ||<\/span> text.<\/span>find_first_not_of<\/span>(<\/span>"0123456789"<\/span>)<\/span> !=<\/span> std::<\/span>string::<\/span>npos)<\/span>
    \n throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"port must be an integer in 1..65535"<\/span>)<\/span>;<\/span>
    \n unsigned<\/span> long<\/span> value =<\/span> std::<\/span>stoul<\/span>(<\/span>text)<\/span>;<\/span>
    \n if<\/span> (<\/span>value ==<\/span> 0<\/span> ||<\/span> value ><\/span> 65535<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"port out of range"<\/span>)<\/span>;<\/span>
    \n return<\/span> static_cast<\/span><<\/span>unsigned<\/span> short<\/span>><\/span><\/span><\/span>(<\/span>value)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    void<\/span> send_all<\/span>(<\/span>SOCKET s,<\/span> const<\/span> std::<\/span>string&<\/span> text)<\/span> {<\/span>
    \n std::<\/span>size_t done =<\/span> 0<\/span>;<\/span>
    \n while<\/span> (<\/span>done <<\/span> text.<\/span>size<\/span>(<\/span>)<\/span>)<\/span> {<\/span>
    \n int<\/span> n =<\/span> send<\/span>(<\/span>s,<\/span> text.<\/span>data<\/span>(<\/span>)<\/span> +<\/span> done,<\/span> static_cast<\/span><<\/span>int<\/span>><\/span><\/span><\/span>(<\/span>text.<\/span>size<\/span>(<\/span>)<\/span> –<\/span> done)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>n ==<\/span> SOCKET_ERROR)<\/span> socket_error<\/span>(<\/span>"send"<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"send made no progress"<\/span>)<\/span>;<\/span>
    \n done +=<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    std::<\/span>string receive_echo<\/span>(<\/span>SOCKET s,<\/span> std::<\/span>size_t expected)<\/span> {<\/span>
    \n std::<\/span>string reply;<\/span>
    \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
    \n while<\/span> (<\/span>reply.<\/span>size<\/span>(<\/span>)<\/span> <<\/span> expected)<\/span> {<\/span>
    \n int<\/span> capacity =<\/span> static_cast<\/span><<\/span>int<\/span>><\/span><\/span><\/span>(<\/span>std::<\/span>min<\/span>(<\/span>sizeof<\/span>(<\/span>buffer)<\/span>,<\/span> expected –<\/span> reply.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>)<\/span>;<\/span>
    \n int<\/span> n =<\/span> recv<\/span>(<\/span>s,<\/span> buffer,<\/span> capacity,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>n ==<\/span> SOCKET_ERROR)<\/span> socket_error<\/span>(<\/span>"recv"<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"server closed before full echo"<\/span>)<\/span>;<\/span>
    \n reply.<\/span>append<\/span>(<\/span>buffer,<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>)<\/span>;<\/span>
    \n }<\/span>
    \n return<\/span> reply;<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span>*<\/span> argv[<\/span>]<\/span>)<\/span> {<\/span>
    \n try<\/span> {<\/span>
    \n if<\/span> (<\/span>argc !=<\/span> 3<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "Usage: tcp_client_windows IPv4 port\\\\n"<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n unsigned<\/span> short<\/span> port =<\/span> parse_port<\/span>(<\/span>argv[<\/span>2<\/span>]<\/span>)<\/span>;<\/span>
    \n Winsock runtime;<\/span>
    \n Socket client;<\/span>
    \n client.<\/span>value =<\/span> socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> IPPROTO_TCP)<\/span>;<\/span>
    \n if<\/span> (<\/span>client.<\/span>value ==<\/span> INVALID_SOCKET)<\/span> socket_error<\/span>(<\/span>"socket"<\/span>)<\/span>;<\/span><\/p>\n

    sockaddr_in server{<\/span>}<\/span>;<\/span>
    \n server.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \n server.<\/span>sin_port =<\/span> htons<\/span>(<\/span>port)<\/span>;<\/span>
    \n int<\/span> converted =<\/span> InetPtonA<\/span>(<\/span>AF_INET,<\/span> argv[<\/span>1<\/span>]<\/span>,<\/span> &<\/span>server.<\/span>sin_addr)<\/span>;<\/span>
    \n if<\/span> (<\/span>converted ==<\/span> SOCKET_ERROR)<\/span> socket_error<\/span>(<\/span>"InetPtonA"<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>converted !=<\/span> 1<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"invalid IPv4 address"<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>connect<\/span>(<\/span>client.<\/span>value,<\/span> reinterpret_cast<\/span><<\/span>sockaddr*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>server)<\/span>,<\/span> sizeof<\/span>(<\/span>server)<\/span>)<\/span> ==<\/span> SOCKET_ERROR)<\/span>
    \n socket_error<\/span>(<\/span>"connect"<\/span>)<\/span>;<\/span><\/p>\n

    DWORD timeout_ms =<\/span> 5000<\/span>;<\/span>
    \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>client.<\/span>value,<\/span> SOL_SOCKET,<\/span> SO_RCVTIMEO,<\/span>
    \n reinterpret_cast<\/span><<\/span>const<\/span> char<\/span>*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>timeout_ms)<\/span>,<\/span> sizeof<\/span>(<\/span>timeout_ms)<\/span>)<\/span> ==<\/span> SOCKET_ERROR)<\/span>
    \n socket_error<\/span>(<\/span>"SO_RCVTIMEO"<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>client.<\/span>value,<\/span> SOL_SOCKET,<\/span> SO_SNDTIMEO,<\/span>
    \n reinterpret_cast<\/span><<\/span>const<\/span> char<\/span>*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>timeout_ms)<\/span>,<\/span> sizeof<\/span>(<\/span>timeout_ms)<\/span>)<\/span> ==<\/span> SOCKET_ERROR)<\/span>
    \n socket_error<\/span>(<\/span>"SO_SNDTIMEO"<\/span>)<\/span>;<\/span><\/p>\n

    std::<\/span>cout <<<\/span> "Connected. Enter \/quit to exit.\\\\n"<\/span>;<\/span>
    \n std::<\/span>string message;<\/span>
    \n while<\/span> (<\/span>std::<\/span>cout <<<\/span> "Please Enter@ "<\/span> &&<\/span> std::<\/span>getline<\/span>(<\/span>std::<\/span>cin,<\/span> message)<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>message ==<\/span> "\/quit"<\/span>)<\/span> break<\/span>;<\/span>
    \n if<\/span> (<\/span>message.<\/span>empty<\/span>(<\/span>)<\/span>)<\/span> continue<\/span>;<\/span>
    \n if<\/span> (<\/span>message.<\/span>size<\/span>(<\/span>)<\/span> ><\/span> 4096<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "Input exceeds 4096 bytes; skipped.\\\\n"<\/span>;<\/span>
    \n continue<\/span>;<\/span>
    \n }<\/span>
    \n send_all<\/span>(<\/span>client.<\/span>value,<\/span> message)<\/span>;<\/span>
    \n std::<\/span>string reply =<\/span> receive_echo<\/span>(<\/span>client.<\/span>value,<\/span> message.<\/span>size<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>reply !=<\/span> message)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"echo mismatch"<\/span>)<\/span>;<\/span>
    \n std::<\/span>cout <<<\/span> "Received ("<\/span> <<<\/span> reply.<\/span>size<\/span>(<\/span>)<\/span> <<<\/span> " bytes): "<\/span> <<<\/span> reply <<<\/span> '\\\\n'<\/span>;<\/span>
    \n }<\/span>
    \n \/\/ All expected echo bytes have already been read. The RAII objects close<\/span>
    \n \/\/ the socket before releasing the Winsock runtime.<\/span>
    \n return<\/span> 0<\/span>;<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> ex)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> ex.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> '\\\\n'<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    6.1 send_all \u4e0e receive_echo \u5404\u8d1f\u8d23\u4ec0\u4e48<\/h4>\n

    send_all \u53ea\u8d1f\u8d23\u628a\u5f53\u524d\u5b57\u7b26\u4e32\u53d1\u9001\u5b8c\u3002receive_echo \u53ea\u8d1f\u8d23\u6309\u5f53\u524d\u5b9e\u9a8c\u7ea6\u5b9a\u6536\u6ee1\u76ee\u6807\u5b57\u8282\u6570\u3002\u628a\u4e24\u8005\u5206\u5f00\u4e4b\u540e，\u6bcf\u4e2a\u8fd4\u56de\u503c\u5bf9\u5e94\u7684\u52a8\u4f5c\u66f4\u6e05\u6670\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    \u6ce8\u610f\u63a5\u6536\u51fd\u6570\u6bcf\u6b21\u53ea\u8bf7\u6c42\u201c\u7f13\u51b2\u5bb9\u91cf\u4e0e\u5269\u4f59\u76ee\u6807\u5b57\u8282\u6570\u4e2d\u7684\u8f83\u5c0f\u503c\u201d\u3002\u5b83\u4e0d\u4f1a\u628a\u540e\u7eed\u6570\u636e\u8bef\u6536\u8fdb\u5f53\u524d\u56de\u590d；\u4e0d\u8fc7\u670d\u52a1\u5668\u82e5\u8fdd\u53cd\u539f\u6837\u56de\u663e\u7ea6\u5b9a，\u591a\u4f59\u5b57\u8282\u4ecd\u4f1a\u7559\u5728\u6d41\u91cc，\u6240\u4ee5\u7a0b\u5e8f\u8fd8\u4f1a\u6bd4\u8f83\u5b9e\u9645\u5185\u5bb9\u662f\u5426\u76f8\u540c\u3002<\/p>\n

    6.2 \u4e3a\u4ec0\u4e48\u9650\u5236\u8f93\u5165\u4e3a 4096 \u5b57\u8282<\/h4>\n

    \u8fd9\u662f\u672c\u7bc7\u5b9e\u9a8c\u7684\u5e94\u7528\u9650\u5236，\u4e0d\u662f TCP \u7684\u6d88\u606f\u957f\u5ea6\u9650\u5236\u3002\u5b83\u8ba9\u8bf7\u6c42\u8db3\u591f\u5c0f，\u4fbf\u4e8e\u89c2\u5bdf\u6536\u53d1，\u5e76\u786e\u4fdd\u4f20\u7ed9 Winsock \u7684 int \u957f\u5ea6\u8f6c\u6362\u5904\u4e8e\u5b89\u5168\u8303\u56f4\u3002<\/p>\n

    \u5b57\u8282\u6570\u8d85\u8fc7 4096 \u5c31\u76f4\u63a5\u62d2\u7edd\u5f53\u524d\u8f93\u5165，\u4e0d\u622a\u65ad\u540e\u7ee7\u7eed\u53d1\u9001\u3002\u8fd9\u6837\u8bfb\u8005\u770b\u5230\u7684\u56de\u590d\u4ecd\u7136\u5bf9\u5e94\u5b8c\u6574\u7684\u8f93\u5165，\u800c\u4e0d\u662f\u4e00\u4e2a\u6084\u6084\u88ab\u5220\u6389\u5c3e\u90e8\u7684\u8bf7\u6c42\u3002<\/p>\n

    6.3 \u4e94\u79d2\u8d85\u65f6\u8986\u76d6\u7684\u662f\u54ea\u91cc<\/h4>\n

    \u5ba2\u6237\u7aef\u8fde\u63a5\u6210\u529f\u540e，\u7ed9\u963b\u585e\u5f0f\u53d1\u9001\u548c\u63a5\u6536\u64cd\u4f5c\u914d\u7f6e\u4e94\u79d2\u8d85\u65f6，\u907f\u514d\u670d\u52a1\u5668\u4e0d\u56de\u590d\u65f6\u4e00\u76f4\u505c\u5728\u901a\u4fe1\u9636\u6bb5\u3002\u8d85\u65f6\u6216\u5176\u4ed6\u6536\u53d1\u9519\u8bef\u53d1\u751f\u540e，\u76f4\u63a5\u653e\u5f03\u5f53\u524d\u8fde\u63a5\u5e76\u91ca\u653e\u8d44\u6e90\u3002<\/p>\n

    \u8fd9\u4e2a\u8bbe\u7f6e\u4e0d\u9650\u5236\u524d\u9762\u7684 connect \u7b49\u5f85\u65f6\u95f4，\u4e5f\u4e0d\u662f\u6574\u4e2a\u8bf7\u6c42\u7684\u7edf\u4e00\u4e94\u79d2\u622a\u6b62\u65f6\u95f4\u3002receive_echo \u591a\u6b21\u8c03\u7528 recv \u65f6，\u6bcf\u6b21\u963b\u585e\u8c03\u7528\u90fd\u6709\u81ea\u5df1\u7684\u7b49\u5f85\u8fc7\u7a0b\u3002\u9700\u8981\u4e25\u683c\u603b\u622a\u6b62\u65f6\u95f4\u65f6，\u5e94\u53e6\u5916\u4f7f\u7528\u65f6\u95f4\u70b9\u3001\u4e8b\u4ef6\u7b49\u5f85\u6216\u975e\u963b\u585e\u673a\u5236\u3002<\/p>\n

    \u672c\u7bc7\u662f\u9010\u6761\u8bf7\u6c42\u7684\u5b9e\u9a8c\u7a0b\u5e8f；\u6ca1\u6709\u989d\u5916\u63a5\u6536\u7ebf\u7a0b\u3002\u82e5\u670d\u52a1\u5668\u5728\u7528\u6237\u505c\u7559\u4e8e\u8f93\u5165\u63d0\u793a\u65f6\u65ad\u5f00，\u5ba2\u6237\u7aef\u901a\u5e38\u5230\u4e0b\u4e00\u6b21\u7f51\u7edc\u64cd\u4f5c\u624d\u89c2\u5bdf\u5230\u72b6\u6001\u53d8\u5316，\u800c\u4e0d\u662f\u7acb\u5373\u6253\u5370\u901a\u77e5\u3002<\/p>\n

    \n

    \u4e03\u3001\u914d\u5957\u7684 Linux \u539f\u6837\u56de\u663e\u670d\u52a1\u5668<\/h3>\n

    \u4e3a\u4e86\u8ba9\u5b9e\u9a8c\u4e0d\u4f9d\u8d56\u672a\u5c55\u793a\u7684\u670d\u52a1\u7aef\u903b\u8f91，\u4e0b\u9762\u63d0\u4f9b\u914d\u5957\u670d\u52a1\u5668\u3002\u5b83\u6309\u6bcf\u6b21 recv \u7684\u5b9e\u9645\u5b57\u8282\u6570\u56de\u53d1，\u65e2\u4e0d\u62fc\u540e\u7f00，\u4e5f\u4e0d\u5047\u5b9a\u4e00\u6b21\u8bfb\u53d6\u5c31\u5bf9\u5e94\u4e00\u884c\u8f93\u5165\u3002<\/p>\n

    #<\/span>include<\/span> <arpa\/inet.h><\/span><\/span>
    \n#<\/span>include<\/span> <sys\/socket.h><\/span><\/span>
    \n#<\/span>include<\/span> <unistd.h><\/span><\/span>
    \n#<\/span>include<\/span> <cerrno><\/span><\/span>
    \n#<\/span>include<\/span> <cstdio><\/span><\/span>
    \n#<\/span>include<\/span> <iostream><\/span><\/span>
    \n#<\/span>include<\/span> <stdexcept><\/span><\/span>
    \n#<\/span>include<\/span> <string><\/span><\/span><\/p>\n

    struct<\/span> Socket<\/span> {<\/span>
    \n int<\/span> value;<\/span>
    \n explicit<\/span> Socket<\/span>(<\/span>int<\/span> fd)<\/span> :<\/span> value<\/span>(<\/span>fd)<\/span> {<\/span>}<\/span>
    \n ~<\/span>Socket<\/span>(<\/span>)<\/span> {<\/span> if<\/span> (<\/span>value >=<\/span> 0<\/span>)<\/span> close<\/span>(<\/span>value)<\/span>;<\/span> }<\/span>
    \n Socket<\/span>(<\/span>const<\/span> Socket&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n Socket&<\/span> operator<\/span>=<\/span>(<\/span>const<\/span> Socket&<\/span>)<\/span> =<\/span> delete<\/span>;<\/span>
    \n}<\/span>;<\/span><\/p>\n

    unsigned<\/span> short<\/span> parse_port<\/span>(<\/span>const<\/span> std::<\/span>string&<\/span> text)<\/span> {<\/span>
    \n if<\/span> (<\/span>text.<\/span>empty<\/span>(<\/span>)<\/span> ||<\/span> text.<\/span>find_first_not_of<\/span>(<\/span>"0123456789"<\/span>)<\/span> !=<\/span> std::<\/span>string::<\/span>npos)<\/span>
    \n throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"port must be an integer in 1..65535"<\/span>)<\/span>;<\/span>
    \n unsigned<\/span> long<\/span> value =<\/span> std::<\/span>stoul<\/span>(<\/span>text)<\/span>;<\/span>
    \n if<\/span> (<\/span>value ==<\/span> 0<\/span> ||<\/span> value ><\/span> 65535<\/span>)<\/span> throw<\/span> std::<\/span>runtime_error<\/span>(<\/span>"port out of range"<\/span>)<\/span>;<\/span>
    \n return<\/span> static_cast<\/span><<\/span>unsigned<\/span> short<\/span>><\/span><\/span><\/span>(<\/span>value)<\/span>;<\/span>
    \n}<\/span><\/p>\n

    bool<\/span> send_all<\/span>(<\/span>int<\/span> fd,<\/span> const<\/span> char<\/span>*<\/span> data,<\/span> std::<\/span>size_t size)<\/span> {<\/span>
    \n std::<\/span>size_t done =<\/span> 0<\/span>;<\/span>
    \n while<\/span> (<\/span>done <<\/span> size)<\/span> {<\/span>
    \n ssize_t n =<\/span> send<\/span>(<\/span>fd,<\/span> data +<\/span> done,<\/span> size –<\/span> done,<\/span> MSG_NOSIGNAL)<\/span>;<\/span>
    \n if<\/span> (<\/span>n <<\/span> 0<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>errno ==<\/span> EINTR)<\/span> continue<\/span>;<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"send"<\/span>)<\/span>;<\/span>
    \n return<\/span> false<\/span>;<\/span>
    \n }<\/span>
    \n if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> return<\/span> false<\/span>;<\/span>
    \n done +=<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>;<\/span>
    \n }<\/span>
    \n return<\/span> true<\/span>;<\/span>
    \n}<\/span><\/p>\n

    int<\/span> main<\/span>(<\/span>int<\/span> argc,<\/span> char<\/span>*<\/span> argv[<\/span>]<\/span>)<\/span> {<\/span>
    \n try<\/span> {<\/span>
    \n if<\/span> (<\/span>argc !=<\/span> 2<\/span>)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> "Usage: tcp_echo_server_linux port\\\\n"<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n unsigned<\/span> short<\/span> port =<\/span> parse_port<\/span>(<\/span>argv[<\/span>1<\/span>]<\/span>)<\/span>;<\/span>
    \n Socket listener<\/span>(<\/span>socket<\/span>(<\/span>AF_INET,<\/span> SOCK_STREAM,<\/span> 0<\/span>)<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>listener.<\/span>value <<\/span> 0<\/span>)<\/span> {<\/span> std::<\/span>perror<\/span>(<\/span>"socket"<\/span>)<\/span>;<\/span> return<\/span> 1<\/span>;<\/span> }<\/span>
    \n int<\/span> reuse =<\/span> 1<\/span>;<\/span>
    \n if<\/span> (<\/span>setsockopt<\/span>(<\/span>listener.<\/span>value,<\/span> SOL_SOCKET,<\/span> SO_REUSEADDR,<\/span> &<\/span>reuse,<\/span> sizeof<\/span>(<\/span>reuse)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"setsockopt"<\/span>)<\/span>;<\/span> return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n sockaddr_in local{<\/span>}<\/span>;<\/span>
    \n local.<\/span>sin_family =<\/span> AF_INET;<\/span>
    \n local.<\/span>sin_port =<\/span> htons<\/span>(<\/span>port)<\/span>;<\/span>
    \n local.<\/span>sin_addr.<\/span>s_addr =<\/span> htonl<\/span>(<\/span>INADDR_ANY)<\/span>;<\/span>
    \n if<\/span> (<\/span>bind<\/span>(<\/span>listener.<\/span>value,<\/span> reinterpret_cast<\/span><<\/span>sockaddr*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>local)<\/span>,<\/span> sizeof<\/span>(<\/span>local)<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"bind"<\/span>)<\/span>;<\/span> return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n if<\/span> (<\/span>listen<\/span>(<\/span>listener.<\/span>value,<\/span> 16<\/span>)<\/span> <<\/span> 0<\/span>)<\/span> {<\/span> std::<\/span>perror<\/span>(<\/span>"listen"<\/span>)<\/span>;<\/span> return<\/span> 1<\/span>;<\/span> }<\/span>
    \n std::<\/span>cout <<<\/span> "Listening on 0.0.0.0:"<\/span> <<<\/span> port <<<\/span> std::<\/span>endl;<\/span>
    \n for<\/span> (<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
    \n sockaddr_in peer{<\/span>}<\/span>;<\/span>
    \n socklen_t length =<\/span> sizeof<\/span>(<\/span>peer)<\/span>;<\/span>
    \n int<\/span> fd =<\/span> accept<\/span>(<\/span>listener.<\/span>value,<\/span> reinterpret_cast<\/span><<\/span>sockaddr*<\/span>><\/span><\/span><\/span>(<\/span>&<\/span>peer)<\/span>,<\/span> &<\/span>length)<\/span>;<\/span>
    \n if<\/span> (<\/span>fd <<\/span> 0<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>errno ==<\/span> EINTR)<\/span> continue<\/span>;<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"accept"<\/span>)<\/span>;<\/span> return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n Socket client<\/span>(<\/span>fd)<\/span>;<\/span>
    \n char<\/span> ip[<\/span>INET_ADDRSTRLEN]<\/span>{<\/span>}<\/span>;<\/span>
    \n if<\/span> (<\/span>!<\/span>inet_ntop<\/span>(<\/span>AF_INET,<\/span> &<\/span>peer.<\/span>sin_addr,<\/span> ip,<\/span> sizeof<\/span>(<\/span>ip)<\/span>)<\/span>)<\/span> {<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"inet_ntop"<\/span>)<\/span>;<\/span> continue<\/span>;<\/span>
    \n }<\/span>
    \n std::<\/span>cout <<<\/span> "Connected: "<\/span> <<<\/span> ip <<<\/span> ':'<\/span> <<<\/span> ntohs<\/span>(<\/span>peer.<\/span>sin_port)<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n char<\/span> buffer[<\/span>1024<\/span>]<\/span>;<\/span>
    \n for<\/span> (<\/span>;<\/span>;<\/span>)<\/span> {<\/span>
    \n ssize_t n =<\/span> recv<\/span>(<\/span>client.<\/span>value,<\/span> buffer,<\/span> sizeof<\/span>(<\/span>buffer)<\/span>,<\/span> 0<\/span>)<\/span>;<\/span>
    \n if<\/span> (<\/span>n ==<\/span> 0<\/span>)<\/span> {<\/span> std::<\/span>cout <<<\/span> "Peer send side closed"<\/span> <<<\/span> std::<\/span>endl;<\/span> break<\/span>;<\/span> }<\/span>
    \n if<\/span> (<\/span>n <<\/span> 0<\/span>)<\/span> {<\/span>
    \n if<\/span> (<\/span>errno ==<\/span> EINTR)<\/span> continue<\/span>;<\/span>
    \n std::<\/span>perror<\/span>(<\/span>"recv"<\/span>)<\/span>;<\/span> break<\/span>;<\/span>
    \n }<\/span>
    \n std::<\/span>cout <<<\/span> "Read "<\/span> <<<\/span> n <<<\/span> " bytes"<\/span> <<<\/span> std::<\/span>endl;<\/span>
    \n if<\/span> (<\/span>!<\/span>send_all<\/span>(<\/span>client.<\/span>value,<\/span> buffer,<\/span> static_cast<\/span><<\/span>std::<\/span>size_t><\/span><\/span><\/span>(<\/span>n)<\/span>)<\/span>)<\/span> break<\/span>;<\/span>
    \n }<\/span>
    \n }<\/span>
    \n }<\/span> catch<\/span> (<\/span>const<\/span> std::<\/span>exception&<\/span> ex)<\/span> {<\/span>
    \n std::<\/span>cerr <<<\/span> ex.<\/span>what<\/span>(<\/span>)<\/span> <<<\/span> '\\\\n'<\/span>;<\/span>
    \n return<\/span> 1<\/span>;<\/span>
    \n }<\/span>
    \n}<\/span><\/p>\n

    7.1 1024 \u5b57\u8282\u7684\u7f13\u51b2\u533a\u4e0d\u4f1a\u9650\u5236\u6574\u4e2a\u56de\u590d\u4e3a 1024 \u5b57\u8282<\/h4>\n

    \u5ba2\u6237\u7aef\u8f93\u5165 3000 \u4e2a ASCII \u5b57\u8282，\u670d\u52a1\u5668\u4f1a\u7528\u4e00\u8f6e\u6216\u591a\u8f6e\u8bfb\u53d6\u5904\u7406，\u5177\u4f53\u6bcf\u8f6e\u8bfb\u53d6\u957f\u5ea6\u7531\u8fd0\u884c\u60c5\u51b5\u51b3\u5b9a\u3002\u6bcf\u8f6e\u53ea\u628a\u8bfb\u5230\u7684\u90a3\u6bb5\u5b57\u8282\u56de\u53d1，\u5ba2\u6237\u7aef\u5219\u7d2f\u79ef\u5230 3000 \u5b57\u8282\u518d\u663e\u793a\u3002<\/p>\n

    \u8fd9\u91cc\u6ca1\u6709\u201c\u7f13\u51b2\u533a\u88c5\u4e0d\u4e0b\u5c31\u628a\u5269\u4f59\u6b63\u6587\u4e22\u6389\u201d\u7684\u903b\u8f91\u3002TCP \u6d41\u4e2d\u7684\u540e\u7eed\u5b57\u8282，\u53ef\u4ee5\u901a\u8fc7\u540e\u7eed\u8bfb\u53d6\u7ee7\u7eed\u53d6\u5f97\u3002<\/p>\n

    7.2 \u670d\u52a1\u7aef\u4e5f\u8981\u5904\u7406\u77ed\u53d1\u9001<\/h4>\n

    \u670d\u52a1\u5668\u540c\u6837\u4f7f\u7528 send_all\u3002Linux \u7684\u63a5\u53e3\u5931\u8d25\u901a\u8fc7 errno \u5224\u65ad，\u9047\u5230 EINTR \u91cd\u8bd5；\u53d1\u9001\u65f6\u4f7f\u7528 Linux \u652f\u6301\u7684 MSG_NOSIGNAL，\u907f\u514d\u5411\u5931\u6548\u8fde\u63a5\u53d1\u9001\u5bfc\u81f4 SIGPIPE \u7ec8\u6b62\u6574\u4e2a\u670d\u52a1\u8fdb\u7a0b\u3002<\/p>\n

    \u8fd9\u5c5e\u4e8e Linux \u7aef\u5b9e\u73b0\u7ec6\u8282，\u4e0d\u80fd\u628a\u8be5\u6807\u5fd7\u539f\u6837\u7167\u642c\u5230 Windows \u4ee3\u7801\u91cc\u3002\u4e24\u7aef\u90fd\u89e3\u51b3\u201c\u6b63\u786e\u5904\u7406\u8fd4\u56de\u503c\u201d\u7684\u95ee\u9898，\u53ea\u662f\u91c7\u7528\u5404\u81ea\u7cfb\u7edf\u7684\u63a5\u53e3\u89c4\u5219\u3002<\/p>\n

    7.3 \u8fd9\u662f\u4e00\u53f0\u987a\u5e8f\u5904\u7406\u5ba2\u6237\u7aef\u7684\u5b9e\u9a8c\u670d\u52a1\u5668<\/h4>\n

    \u670d\u52a1\u7aef\u63a5\u6536\u4e00\u4e2a\u8fde\u63a5\u540e，\u5728\u5185\u5c42\u5faa\u73af\u5904\u7406\u5b83；\u7b49\u8be5\u8fde\u63a5\u7ed3\u675f，\u624d\u56de\u5230\u5916\u5c42\u8c03\u7528 accept \u63a5\u53d7\u4e0b\u4e00\u4e2a\u3002\u56e0\u6b64，\u7b2c\u4e8c\u4e2a\u5ba2\u6237\u7aef\u5373\u4f7f\u5b8c\u6210\u5efa\u8fde，\u4e5f\u53ef\u80fd\u6682\u65f6\u5f97\u4e0d\u5230\u5e94\u7528\u5c42\u56de\u590d\u3002<\/p>\n

    listen(…, 16) \u4e0d\u8868\u793a\u521b\u5efa 16 \u4e2a\u5de5\u4f5c\u7ebf\u7a0b，\u4e5f\u4e0d\u8868\u793a\u540c\u65f6\u5904\u7406 16 \u4e2a\u4f1a\u8bdd\u3002\u5982\u679c\u9700\u8981\u591a\u5ba2\u6237\u7aef\u5b9e\u65f6\u670d\u52a1，\u518d\u5f15\u5165\u7ebf\u7a0b\u3001\u8fdb\u7a0b\u6216\u8005 I\/O \u591a\u8def\u590d\u7528\u3002\u672c\u7bc7\u4fdd\u6301\u987a\u5e8f\u7ed3\u6784，\u96c6\u4e2d\u89c2\u5bdf TCP \u63a5\u53e3\u4e0e\u8de8\u5e73\u53f0\u5dee\u5f02\u3002<\/p>\n

    \n

    \u516b\u3001\u7f16\u8bd1\u8fd0\u884c\u4e0e\u901a\u4fe1\u9a8c\u8bc1<\/h3>\n

    8.1 \u5148\u5728 Linux \u7f16\u8bd1\u5e76\u542f\u52a8\u670d\u52a1\u7aef<\/h4>\n

    \u8fdb\u5165 code \u6240\u5728\u76ee\u5f55：<\/p>\n

    g++ -std<\/span>=<\/span>c++17 -Wall<\/span> -Wextra<\/span> -Wpedantic<\/span> -O2<\/span> \\\\<\/span>
    \n tcp_echo_server_linux.cpp -o<\/span> tcp_echo_server_linux
    \n.\/tcp_echo_server_linux 8888<\/span><\/p>\n

    \u9884\u671f\u542f\u52a8\u63d0\u793a\u5982\u4e0b，\u8fd9\u4e9b\u8f93\u51fa\u7528\u4e8e\u8bf4\u660e\u7a0b\u5e8f\u884c\u4e3a，\u4e0d\u662f\u67d0\u53f0\u4e91\u670d\u52a1\u5668\u7684\u5b9e\u6d4b\u622a\u56fe：<\/p>\n

    Listening on 0.0.0.0:8888<\/p>\n

    \u5728\u53e6\u4e00\u4e2a Linux \u7ec8\u7aef\u68c0\u67e5\u76d1\u542c：<\/p>\n

    ss -lntp<\/span> 'sport = :8888'<\/span><\/p>\n

    \u5173\u6ce8\u534f\u8bae\u72b6\u6001\u662f\u5426\u4e3a LISTEN\u3001\u672c\u5730\u7aef\u53e3\u662f\u5426\u4e3a 8888\u3001\u76d1\u542c\u5730\u5740\u662f\u5426\u8986\u76d6\u51c6\u5907\u8ba9 Windows \u8bbf\u95ee\u7684\u7f51\u5361\u3002\u4f7f\u7528\u666e\u901a\u7528\u6237\u770b\u4e0d\u5230\u8fdb\u7a0b\u7ec6\u8282\u65f6，\u518d\u6839\u636e\u6743\u9650\u4f7f\u7528 sudo\u3002<\/p>\n

    8.2 \u5728 Windows \u7f16\u8bd1\u5ba2\u6237\u7aef<\/h4>\n

    Visual Studio \u9879\u76ee\u65b9\u5f0f：\u521b\u5efa C++ \u63a7\u5236\u53f0\u9879\u76ee，\u628a\u968f\u9644\u5ba2\u6237\u7aef\u4f5c\u4e3a\u552f\u4e00\u7684 main \u6240\u5728\u6e90\u6587\u4ef6；\u914d\u7f6e C++17，\u5e76\u4fdd\u7559\u6e90\u7801\u4e2d\u7684\u94fe\u63a5 pragma\u3002\u6e90\u7801\u4ee5 UTF-8 \u4fdd\u5b58\u65f6，\u53ef\u542f\u7528 \/utf-8 \u7f16\u8bd1\u9009\u9879\u3002<\/p>\n

    MSVC \u547d\u4ee4\u884c\u65b9\u5f0f：\u5728\u5b89\u88c5\u4e86 C++ \u5de5\u5177\u548c Windows SDK \u7684 x64 Developer Command Prompt \u4e2d\u6267\u884c：<\/p>\n

    cl \/nologo \/std:c++17 \/EHsc \/W4 \/utf-8 tcp_client_windows.cpp \/Fe:tcp_client_windows.exe<\/p>\n

    \u666e\u901a PowerShell \u5982\u679c\u63d0\u793a\u627e\u4e0d\u5230 cl，\u901a\u5e38\u662f\u5f00\u53d1\u8005\u547d\u4ee4\u884c\u73af\u5883\u6ca1\u6709\u52a0\u8f7d，\u4e0d\u5e94\u5148\u5f52\u56e0\u4e8e Socket \u4ee3\u7801\u3002<\/p>\n

    MinGW-w64 \u65b9\u5f0f：\u5982\u679c\u4f7f\u7528\u5b83\u7684 Windows \u7f16\u8bd1\u5668，\u5219\u6267\u884c：<\/p>\n

    g++ -std<\/span>=<\/span>c++17 -Wall<\/span> -Wextra<\/span> -O2<\/span> tcp_client_windows.cpp \\\\<\/span>
    \n -o<\/span> tcp_client_windows.exe -lws2_32<\/span><\/p>\n

    \u8fd9\u91cc\u7528\u7684\u662f Windows \u76ee\u6807\u5de5\u5177\u94fe，\u4e0d\u80fd\u628a Linux \u4e0a\u7684\u666e\u901a g++ \u7f16\u8bd1\u547d\u4ee4\u5f53\u6210 Windows \u672c\u673a\u7a0b\u5e8f\u7684\u6784\u5efa\u65b9\u5f0f\u3002<\/p>\n

    8.3 \u518d\u68c0\u67e5 Windows \u5230\u670d\u52a1\u7aef\u7aef\u53e3<\/h4>\n

    \u4f8b\u5982 Linux \u7684\u5b9e\u9645\u5c40\u57df\u7f51\u5730\u5740\u662f 192.168.1.10：<\/p>\n

    Test-NetConnection<\/span> –<\/span>ComputerName 192.<\/span>168.<\/span>1.<\/span>10 –<\/span>Port 8888<\/p>\n

    TcpTestSucceeded \u4e3a\u771f\u8bf4\u660e\u6b64\u6b21 TCP \u63a2\u6d4b\u6210\u529f；\u5b83\u4e0d\u6d4b\u8bd5\u56de\u663e\u534f\u8bae\u3002\u8fd9\u4e2a\u63a2\u6d4b\u672c\u8eab\u53ef\u80fd\u8ba9 Linux \u670d\u52a1\u7aef\u6253\u5370\u4e00\u6761\u77ed\u6682\u8fde\u63a5\u53ca\u5173\u95ed\u65e5\u5fd7，\u56e0\u4e3a\u5b83\u4e5f\u5efa\u7acb\u8fc7\u4e00\u6b21 TCP \u8fde\u63a5\u3002<\/p>\n

    \u63a5\u7740\u8fd0\u884c\u5ba2\u6237\u7aef：<\/p>\n

    .<\/span>\\\\tcp_client_windows.<\/span>exe 192.<\/span>168.<\/span>1.<\/span>10 8888<\/p>\n

    \u9884\u671f\u4ea4\u4e92\u5f62\u5f0f：<\/p>\n

    Connected. Enter \/quit to exit.
    \nPlease Enter@ hello
    \nReceived (5 bytes): hello
    \nPlease Enter@ world
    \nReceived (5 bytes): world
    \nPlease Enter@ \/quit<\/p>\n

    \/quit \u5728\u672c\u5730\u88ab\u8bc6\u522b，\u4e0d\u4f5c\u4e3a\u6b63\u6587\u53d1\u9001\u3002\u6240\u6709\u5df2\u53d1\u51fa\u7684\u8bf7\u6c42\u56de\u590d\u90fd\u6536\u6ee1\u540e，\u5ba2\u6237\u7aef\u7ed3\u675f\u5faa\u73af\u3001\u5173\u95ed Socket，\u6700\u540e\u91ca\u653e Winsock \u8fd0\u884c\u73af\u5883\u3002<\/p>\n

    8.4 \u6309\u987a\u5e8f\u505a\u51e0\u7ec4\u6709\u610f\u4e49\u7684\u68c0\u67e5<\/h4>\n\n\u68c0\u67e5\u65b9\u6cd5\u9884\u671f\u89c2\u5bdf<\/tr>\n\n\n\n\n\n\n\n\n
    \u6700\u5c0f\u8bf7\u6c42<\/td>\n\u8f93\u5165 hello<\/td>\n\u56de\u663e\u76f8\u540c\u7684 5 \u5b57\u8282<\/td>\n<\/tr>\n
    \u8fde\u7eed\u8bf7\u6c42<\/td>\n\u5b8c\u6210\u4e00\u8f6e\u540e\u518d\u8f93\u5165\u4e0b\u4e00\u884c<\/td>\n\u4e0d\u6df7\u5165\u4e0a\u4e00\u8f6e\u56de\u590d<\/td>\n<\/tr>\n
    \u8d85\u8fc7\u63a5\u6536\u7f13\u51b2\u5bb9\u91cf<\/td>\n\u8f93\u5165 3000 \u4e2a ASCII \u5b57\u7b26<\/td>\n\u4ecd\u6536\u6ee1 3000 \u5b57\u8282\u5e76\u6bd4\u8f83\u901a\u8fc7<\/td>\n<\/tr>\n
    \u672c\u5730\u9000\u51fa<\/td>\n\u8f93\u5165 \/quit \u6216\u7ed3\u675f\u6807\u51c6\u8f93\u5165<\/td>\n\u7ed3\u675f\u5faa\u73af\u5e76\u6267\u884c\u8d44\u6e90\u91ca\u653e<\/td>\n<\/tr>\n
    \u4e0d\u5408\u6cd5\u53c2\u6570<\/td>\n\u65e0\u6548 IPv4\u3001\u7aef\u53e3 0 \u6216 70000<\/td>\n\u6e05\u695a\u62a5\u544a\u53c2\u6570\u9519\u8bef<\/td>\n<\/tr>\n
    \u670d\u52a1\u7aef\u6b63\u5e38\u5173\u95ed<\/td>\n\u5f85\u6536\u56de\u590d\u671f\u95f4\u5173\u95ed\u8fde\u63a5<\/td>\n\u5ba2\u6237\u7aef\u89c2\u5bdf EOF \u6216\u8fde\u63a5\u76f8\u5173\u9519\u8bef<\/td>\n<\/tr>\n
    \u65e0\u56de\u590d<\/td>\n\u8fde\u63a5\u88ab\u63a5\u53d7\u4f46\u670d\u52a1\u7aef\u4e0d\u53d1\u9001<\/td>\n\u63a5\u6536\u8d85\u65f6，\u5f53\u524d\u8fde\u63a5\u7ed3\u675f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u5728 PowerShell \u4e2d\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7ba1\u9053\u6d4b\u8bd5\u4e00\u6761\u8f83\u957f\u8f93\u5165：<\/p>\n

    (<\/span>'A'<\/span> *<\/span> 3000)<\/span>,<\/span> '\/quit'<\/span> |<\/span> .<\/span>\\\\tcp_client_windows.<\/span>exe 192.<\/span>168.<\/span>1.<\/span>10 8888<\/p>\n

    \u8fd9\u7ec4\u68c0\u67e5\u80fd\u9a8c\u8bc1\u5e94\u7528\u6309\u957f\u5ea6\u7d2f\u8ba1\u8bfb\u53d6，\u4f46\u4e0d\u80fd\u4fdd\u8bc1\u672c\u6b21\u5e95\u5c42 recv \u4e00\u5b9a\u6309\u67d0\u4e2a\u56fa\u5b9a\u5206\u6bb5\u8fd4\u56de\u3002\u8981\u9a8c\u8bc1\u5206\u6bb5\u884c\u4e3a，\u5e94\u7531\u6d4b\u8bd5\u670d\u52a1\u7aef\u523b\u610f\u5206\u6279\u56de\u53d1，\u800c\u4e0d\u662f\u53ea\u89c2\u5bdf\u4e00\u6b21\u957f\u6d88\u606f\u3002<\/p>\n

    8.5 \u4e2d\u6587\u663e\u793a\u4e0e TCP \u4f20\u8f93\u662f\u4e24\u4e2a\u5c42\u9762<\/h4>\n

    \u5148\u7528 ASCII \u8dd1\u901a\u5b9e\u9a8c\u3002\u9700\u8981\u4e2d\u6587\u65f6，\u518d\u8ba9 Windows \u7ec8\u7aef\u3001\u8f93\u5165\u7a0b\u5e8f\u3001Linux \u7a0b\u5e8f\u548c\u663e\u793a\u7aef\u7edf\u4e00\u91c7\u7528\u5408\u9002\u7684\u7f16\u7801，\u4f8b\u5982 UTF-8\u3002<\/p>\n

    UTF-8 \u4e2d\u7684\u4e00\u4e2a\u6c49\u5b57\u53ef\u80fd\u5360\u591a\u4e2a\u5b57\u8282，message.size() \u7edf\u8ba1\u5b57\u8282\u6570，\u4e0d\u662f\u5b57\u7b26\u6570\u3002\u5373\u4f7f\u4e00\u4e2a\u591a\u5b57\u8282\u5b57\u7b26\u88ab\u5206\u5230\u4e24\u6b21 recv \u4e2d，\u53ea\u8981\u5148\u6309\u987a\u5e8f\u7d2f\u8ba1\u5b8c\u6574\u5b57\u8282\u518d\u89e3\u7801，\u4e5f\u4e0d\u610f\u5473\u7740 TCP \u628a\u5b57\u7b26\u635f\u574f\u4e86\u3002<\/p>\n

    \u672c\u7bc7\u5df2\u5b8c\u6210 MSVC \u5ba2\u6237\u7aef\u4e0e Ubuntu 24.04（WSL）\u670d\u52a1\u7aef\u7684\u7f16\u8bd1，\u4ee5\u53ca Windows \u2192 WSL Linux \u7684\u5b9e\u9645\u539f\u6837\u56de\u663e\u9a8c\u8bc1：\u8fde\u7eed\u77ed\u8bf7\u6c42\u30013000 \u5b57\u8282\u8bf7\u6c42\u548c\u6b63\u5e38\u9000\u51fa\u5747\u901a\u8fc7\u3002\u53e6\u7528 Windows \u672c\u673a\u6d4b\u8bd5\u670d\u52a1\u9a8c\u8bc1\u4e86\u63d0\u524d EOF\u3001\u8d85\u65f6\u548c\u54cd\u5e94\u4e0d\u5339\u914d\u7b49\u5206\u652f\u3002<\/p>\n

    \u8be6\u7ec6\u9a8c\u8bc1\u8303\u56f4\u89c1 code\/\u9a8c\u8bc1\u8bb0\u5f55.md\u3002 \u8fd9\u91cc\u7684 WSL \u7ed3\u679c\u4e0d\u8986\u76d6\u4e91\u670d\u52a1\u5668\u516c\u7f51\u8def\u5f84\u3001\u5b89\u5168\u7ec4\u89c4\u5219\u6216\u5176\u4ed6\u865a\u62df\u673a\u7f51\u7edc\u6a21\u5f0f，\u8fd9\u4e9b\u5e94\u5728\u81ea\u5df1\u7684\u73af\u5883\u4e2d\u6309\u4e0a\u8ff0\u6b65\u9aa4\u9a8c\u8bc1；\u793a\u610f\u8f93\u51fa\u4e0d\u80fd\u66ff\u4ee3\u8fd9\u4e9b\u68c0\u67e5\u3002<\/p>\n

    \n

    \u4e5d\u3001\u9000\u51fa\u8fde\u63a5\u4e0e\u5f02\u5e38\u65ad\u7ebf\u600e\u6837\u533a\u5206<\/h3>\n

    \u8bb2\u4e49\u5c55\u793a\u4e86\u5173\u95ed Windows \u5ba2\u6237\u7aef\u540e，Linux \u670d\u52a1\u5668\u6253\u5370 client quit\u3002\u8fd9\u6761\u65e5\u5fd7\u63cf\u8ff0\u7684\u662f\u670d\u52a1\u7aef\u5bf9\u8fde\u63a5\u72b6\u6001\u7684\u89c2\u5bdf，\u4e0d\u4e00\u5b9a\u8868\u793a\u5ba2\u6237\u7aef\u771f\u7684\u53d1\u9001\u4e86\u4e00\u4e2a\u5185\u5bb9\u4e3a quit \u7684\u6d88\u606f\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    9.1 \u6b63\u5e38\u5173\u95ed\u9996\u5148\u662f\u4e00\u4e2a\u65b9\u5411\u7684\u7ed3\u675f<\/h4>\n

    \u5f53\u5bf9\u7aef\u6709\u5e8f\u7ed3\u675f\u53d1\u9001，\u63a5\u6536\u65b9\u5148\u8bfb\u5b8c\u961f\u5217\u91cc\u5df2\u6709\u7684\u6570\u636e，\u518d\u901a\u8fc7 recv == 0 \u89c2\u5bdf\u5230 EOF\u3002\u8fd9\u8868\u793a\u5bf9\u7aef\u4e0d\u4f1a\u518d\u5728\u8fd9\u4e00\u65b9\u5411\u53d1\u9001\u6570\u636e，\u4e0d\u80fd\u76f4\u63a5\u63a8\u5bfc\u672c\u7aef\u4e5f\u5df2\u7ecf\u5173\u95ed，\u6216\u5bf9\u7aef\u8fdb\u7a0b\u5df2\u5b8c\u5168\u9000\u51fa\u3002<\/p>\n

    \u5982\u679c\u4f7f\u7528 shutdown(…, SD_SEND)，Windows \u53ef\u4ee5\u53ea\u5173\u95ed\u53d1\u9001\u65b9\u5411，\u4ecd\u4fdd\u7559\u63a5\u6536\u65b9\u5411\u3002\u672c\u6587\u6ca1\u6709\u5355\u72ec\u6f14\u793a\u534a\u5173\u95ed\u6536\u5c3e，\u800c\u662f\u5728\u8bf7\u6c42\u56de\u590d\u5b8c\u6210\u540e\u76f4\u63a5\u7531\u5bf9\u8c61\u6790\u6784\u5173\u95ed Socket\u3002<\/p>\n

    9.2 \u5f3a\u5236\u5173\u95ed\u548c\u7f51\u7edc\u4e2d\u65ad\u53ef\u80fd\u5448\u73b0\u4e0d\u540c\u7ed3\u679c<\/h4>\n

    \u5982\u679c\u8fde\u63a5\u88ab\u91cd\u7f6e，Windows \u5e38\u89c1\u9519\u8bef\u5305\u62ec WSAECONNRESET\u3002\u62d4\u7f51\u7ebf\u3001\u4e22\u5f03\u6570\u636e\u5305\u6216\u8fdc\u7aef\u65e0\u54cd\u5e94\u65f6，\u53ef\u80fd\u5148\u8868\u73b0\u4e3a\u7b49\u5f85，\u968f\u540e\u624d\u51fa\u73b0\u8d85\u65f6\u7b49\u9519\u8bef，\u4e0d\u80fd\u671f\u5f85\u670d\u52a1\u7aef\u6216\u5ba2\u6237\u7aef\u603b\u4f1a\u7acb\u523b\u83b7\u77e5\u3002<\/p>\n

    \u6240\u4ee5\u9000\u51fa\u89c2\u5bdf\u8981\u8bb0\u5f55\u201c\u5728\u54ea\u4e2a\u63a5\u53e3\u3001\u8fd4\u56de\u4ec0\u4e48\u503c\u3001\u5177\u4f53\u9519\u8bef\u7801\u662f\u4ec0\u4e48\u201d，\u4e0d\u80fd\u53ea\u8bb0\u5f55\u201c\u7a97\u53e3\u5173\u4e86，\u53e6\u4e00\u7aef\u6ca1\u53cd\u5e94\u201d\u3002\u672c\u7bc7\u914d\u7f6e\u4e86\u901a\u4fe1\u8d85\u65f6，\u4f46\u6ca1\u6709\u5b9e\u73b0\u5fc3\u8df3\u3001\u65ad\u7ebf\u91cd\u8fde\u6216\u5b8c\u6574\u8fde\u63a5\u5b58\u6d3b\u68c0\u6d4b\u3002<\/p>\n

    9.3 \u6ca1\u6709\u6570\u636e\u65f6，\u963b\u585e recv \u901a\u5e38\u5728\u7b49\u5f85<\/h4>\n

    \u201c\u6682\u65f6\u6ca1\u6709\u6570\u636e\u201d\u4e0d\u662f\u6210\u529f\u8fd4\u56de 0 \u7684\u540c\u4e49\u8bcd\u3002\u963b\u585e\u5f0f TCP recv \u5728\u6ca1\u6709\u53ef\u8bfb\u6570\u636e\u3001\u6ca1\u6709 EOF \u6216\u9519\u8bef\u65f6，\u901a\u5e38\u7ee7\u7eed\u7b49\u5f85；\u914d\u7f6e\u8d85\u65f6\u540e\u5219\u53ef\u80fd\u56e0\u4e3a\u7b49\u5f85\u671f\u9650\u800c\u8fd4\u56de\u9519\u8bef\u3002<\/p>\n

    \u5982\u679c\u540e\u7eed\u5b66\u4e60\u975e\u963b\u585e Socket，\u8fd8\u4f1a\u9047\u5230 WSAEWOULDBLOCK，\u90a3\u662f\u53e6\u4e00\u79cd\u5904\u7406\u6a21\u578b\u3002\u672c\u7bc7\u4e0d\u628a\u963b\u585e\u4e0e\u975e\u963b\u585e\u7684\u8fd4\u56de\u8def\u5f84\u6df7\u5728\u540c\u4e00\u4e2a\u5b9e\u9a8c\u91cc\u3002<\/p>\n

    \n

    \u5341\u3001\u8fde\u63a5\u5931\u8d25\u65f6\u6309\u4ec0\u4e48\u987a\u5e8f\u6392\u67e5<\/h3>\n

    \u201c\u8fde\u4e0d\u4e0a\u201d\u4e0d\u662f\u4e00\u4e2a\u8db3\u591f\u5177\u4f53\u7684\u9519\u8bef\u63cf\u8ff0\u3002\u5148\u5224\u65ad\u5931\u8d25\u53d1\u751f\u5728\u521d\u59cb\u5316\u3001\u521b\u5efa\u3001\u5730\u5740\u8f6c\u6362\u3001\u8fde\u63a5，\u8fd8\u662f\u5df2\u8fde\u63a5\u540e\u7684\u6536\u53d1\u9636\u6bb5\u3002<\/p>\n

    \"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

    10.1 \u5148\u8bc1\u660e\u670d\u52a1\u5728\u6b63\u786e\u7684\u5165\u53e3\u76d1\u542c<\/h4>\n

    \u68c0\u67e5 Linux \u7a0b\u5e8f\u662f\u5426\u4ecd\u5728\u8fd0\u884c，bind \/ listen \u662f\u5426\u6210\u529f，\u7aef\u53e3\u662f\u5426\u88ab\u53e6\u4e00\u4e2a\u8fdb\u7a0b\u5360\u7528\u3002\u7136\u540e\u7528 ss \u786e\u8ba4\u76d1\u542c\u5730\u5740\u4e0e TCP \u7aef\u53e3\u3002<\/p>\n

    \u5982\u679c\u76d1\u542c\u4ec5\u5728 127.0.0.1，\u5148\u4fee\u6b63\u7ed1\u5b9a\u8303\u56f4\u3002\u5982\u679c\u76d1\u542c\u5165\u53e3\u6b63\u786e，\u518d\u770b\u5ba2\u6237\u7aef\u76ee\u6807\u5730\u5740\u662f\u5426\u5bf9\u5e94\u8fd9\u53f0 Linux \u4e3b\u673a\u548c\u5b9e\u9645\u6620\u5c04\u3002<\/p>\n

    10.2 \u518d\u68c0\u67e5 TCP \u7f51\u7edc\u8def\u5f84<\/h4>\n

    \u4ece Windows \u7528 Test-NetConnection \u63a2\u6d4b\u76ee\u6807\u7aef\u53e3\u3002\u5bf9\u4e91\u4e3b\u673a，\u6838\u5bf9\u5b89\u5168\u7ec4\u534f\u8bae\u3001\u76ee\u6807\u7aef\u53e3\u4e0e\u5141\u8bb8\u6765\u6e90；\u5bf9\u865a\u62df\u673a，\u6838\u5bf9\u5b9e\u9645\u7f51\u7edc\u6a21\u5f0f\u548c\u7aef\u53e3\u8f6c\u53d1；\u5bf9 Linux \u4e3b\u673a，\u6838\u5bf9\u542f\u7528\u7684\u9632\u706b\u5899\u89c4\u5219\u3002<\/p>\n

    ping \u68c0\u67e5\u7684\u662f\u53e6\u4e00\u7c7b\u7f51\u7edc\u62a5\u6587\u7684\u54cd\u5e94\u3002ping \u901a\u8fc7\u4e0d\u80fd\u8bc1\u660e TCP 8888 \u5f00\u653e，ping \u4e0d\u901a\u4e5f\u4e0d\u80fd\u5355\u72ec\u8bc1\u660e TCP 8888 \u4e0d\u53ef\u7528\u3002<\/p>\n

    \u5fc5\u8981\u65f6\u5728 Linux \u6293\u53d6\u76f8\u5173\u6d41\u91cf：<\/p>\n

    sudo<\/span> tcpdump -ni<\/span> any 'tcp port 8888'<\/span><\/p>\n

    \u6ca1\u6709\u770b\u5230\u76f8\u5173 SYN，\u5148\u67e5\u6d41\u91cf\u662f\u5426\u5230\u8fbe\u6293\u5305\u4f4d\u7f6e\u53ca\u4e0a\u6e38\u8def\u5f84；\u770b\u5230 SYN \u4f46\u8fde\u63a5\u4e0d\u6210\u7acb，\u518d\u7ed3\u5408\u8fd4\u56de\u62a5\u6587\u3001\u76d1\u542c\u548c\u672c\u673a\u89c4\u5219\u5224\u65ad\u3002\u5df2\u7ecf\u5efa\u7acb\u8fde\u63a5\u4f46\u6ca1\u6709\u56de\u590d，\u5c31\u7ee7\u7eed\u68c0\u67e5 accept\u3001\u670d\u52a1\u7aef\u5904\u7406\u5faa\u73af\u548c\u5e94\u7528\u7ea6\u5b9a\u3002<\/p>\n

    10.3 \u9519\u8bef\u7801\u662f\u7ebf\u7d22，\u4e0d\u662f\u552f\u4e00\u7ed3\u8bba<\/h4>\n\n\u9519\u8bef\u7801\u5e38\u89c1\u89e3\u91ca\u4e0b\u4e00\u6b65\u68c0\u67e5<\/tr>\n\n\n\n\n\n\n
    10061 \/ WSAECONNREFUSED<\/td>\n\u8fde\u63a5\u88ab\u62d2\u7edd<\/td>\n\u76ee\u6807\u662f\u5426\u76d1\u542c，\u662f\u5426\u6709\u8bbe\u5907\u4e3b\u52a8\u62d2\u7edd<\/td>\n<\/tr>\n
    10060 \/ WSAETIMEDOUT<\/td>\n\u64cd\u4f5c\u8d85\u65f6<\/td>\n\u4e22\u5f03\u89c4\u5219\u3001\u7f51\u7edc\u8def\u5f84\u3001\u5bf9\u7aef\u54cd\u5e94\u4e0e\u5f53\u524d\u64cd\u4f5c\u9636\u6bb5<\/td>\n<\/tr>\n
    10054 \/ WSAECONNRESET<\/td>\n\u5df2\u6709\u8fde\u63a5\u88ab\u5bf9\u7aef\u91cd\u7f6e<\/td>\n\u5bf9\u7aef\u9000\u51fa\u65b9\u5f0f\u3001\u670d\u52a1\u5f02\u5e38\u53ca\u7f51\u7edc\u8bbe\u5907\u884c\u4e3a<\/td>\n<\/tr>\n
    10051 \/ WSAENETUNREACH<\/td>\n\u7f51\u7edc\u4e0d\u53ef\u8fbe<\/td>\n\u672c\u5730\u8def\u7531\u3001\u7f51\u5361\u4e0e\u76ee\u6807\u7f51\u6bb5<\/td>\n<\/tr>\n
    10093 \/ WSANOTINITIALISED<\/td>\nWinsock \u672a\u6210\u529f\u521d\u59cb\u5316<\/td>\n\u521d\u59cb\u5316\u7ed3\u679c\u53ca\u662f\u5426\u8fc7\u65e9\u6e05\u7406<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u540c\u4e00\u4e2a\u9519\u8bef\u7801\u53ef\u80fd\u6709\u591a\u4e2a\u73af\u5883\u539f\u56e0，\u4e0d\u80fd\u770b\u5230\u8d85\u65f6\u5c31\u65ad\u8a00\u201c\u4e00\u5b9a\u662f\u5b89\u5168\u7ec4\u201d\u3002\u8981\u7ed3\u5408\u5931\u8d25\u63a5\u53e3\u3001\u670d\u52a1\u65e5\u5fd7\u548c\u7f51\u7edc\u8bc1\u636e\u5b9a\u4f4d\u3002Microsoft：Windows Sockets \u9519\u8bef\u7801<\/p>\n

    10.4 \u5df2\u8fde\u63a5\u5374\u6ca1\u6709\u6b63\u786e\u56de\u663e，\u68c0\u67e5\u5e94\u7528\u7ea6\u5b9a<\/h4>\n

    \u672c\u7bc7\u5ba2\u6237\u7aef\u6536\u56de\u590d\u7684\u957f\u5ea6\u7b49\u4e8e\u8bf7\u6c42\u957f\u5ea6\u3002\u5982\u679c\u4f60\u628a\u5b83\u8fde\u5230\u8bb2\u4e49\u622a\u56fe\u91cc\u90a3\u4e2a\u4f1a\u6dfb\u52a0\u540e\u7f00\u7684\u670d\u52a1\u5668，\u7b2c\u4e00\u6b21\u8bfb\u53d6\u53ef\u80fd\u53ea\u5f97\u5230\u6b63\u6587，\u540e\u7f00\u7559\u5728\u7f13\u51b2\u533a\u4e2d；\u4e0b\u4e00\u8f6e\u8bfb\u53d6\u5c31\u53ef\u80fd\u62ff\u5230\u4e0a\u4e00\u6b21\u7684\u5c3e\u90e8，\u6700\u7ec8\u89e6\u53d1\u6bd4\u8f83\u5931\u8d25\u3002<\/p>\n

    \u8fd9\u4e0d\u662f Windows \u4e0e Linux \u4e0d\u517c\u5bb9，\u4e5f\u4e0d\u662f\u901a\u8fc7\u589e\u52a0 Sleep \u5c31\u80fd\u89e3\u51b3\u7684\u95ee\u9898\u3002\u5e94\u5148\u7edf\u4e00\u8bf7\u6c42\u4e0e\u54cd\u5e94\u7684\u5b8c\u6210\u89c4\u5219，\u518d\u5206\u6790\u7a0b\u5e8f\u884c\u4e3a\u3002<\/p>\n

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