{"id":46134,"date":"2025-07-30T02:32:37","date_gmt":"2025-07-29T18:32:37","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/46134.html"},"modified":"2025-07-30T02:32:37","modified_gmt":"2025-07-29T18:32:37","slug":"vs-2019-mfc%e5%ae%9e%e7%8e%b0tcp-ip%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%b8%8e%e5%ae%a2%e6%88%b7%e7%ab%af%e7%9a%84socket%e9%80%9a%e8%ae%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/46134.html","title":{"rendered":"VS 2019 MFC\u5b9e\u73b0TCP\/IP\u670d\u52a1\u5668\u4e0e\u5ba2\u6237\u7aef\u7684Socket\u901a\u8baf"},"content":{"rendered":"

\u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p>\n

\u7b80\u4ecb：\u672c\u6587\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Visual Studio 2019\u548cMFC\u5e93\u6784\u5efaTCP\/IP\u901a\u4fe1\u5e94\u7528\u3002\u8be6\u7ec6\u8bf4\u660e\u4e86\u521b\u5efa\u4e00\u5bf9\u591a\u540c\u6b65\u901a\u4fe1\u7684TCP\/IP\u670d\u52a1\u5668\u7aef\u7684\u8fc7\u7a0b，\u5305\u62ec\u521d\u59cb\u5316Socket\u3001\u76d1\u542c\u8fde\u63a5\u3001\u63a5\u53d7\u8fde\u63a5\u548c\u5904\u7406\u6570\u636e\u7684\u6b65\u9aa4\u3002\u540c\u65f6，\u4ecb\u7ecd\u4e86\u4f7f\u7528Select\u51fd\u6570\u8fdb\u884c\u591a\u8def\u590d\u7528\u7684\u65b9\u6cd5，\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u6548\u7387\u3002\u901a\u8fc7\u793a\u4f8b\u4ee3\u7801，\u52a0\u6df1\u5bf9\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u901a\u4fe1\u673a\u5236\u7684\u7406\u89e3\u3002 \"VS <\/p>\n

1. Visual Studio 2019\u4e2d\u7684MFC\u5e93\u4f7f\u7528 <\/h2>\n

\u5728\u73b0\u4ee3\u8f6f\u4ef6\u5f00\u53d1\u4e2d，Microsoft Foundation Classes (MFC) \u662f\u4e00\u5957\u5c01\u88c5\u4e86 Win32 API \u7684\u7c7b\u5e93，\u5b83\u4f7f\u5f97\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u5feb\u901f\u6784\u5efa\u51fa\u5177\u6709Windows\u754c\u9762\u7684\u5e94\u7528\u7a0b\u5e8f\u3002Visual Studio 2019\u4f5c\u4e3a\u5fae\u8f6f\u6700\u65b0\u7684\u96c6\u6210\u5f00\u53d1\u73af\u5883（IDE），\u63d0\u4f9b\u4e86\u5bf9MFC\u7684\u4f18\u79c0\u652f\u6301，\u4f7f\u5f97\u5f00\u53d1\u8005\u80fd\u66f4\u9ad8\u6548\u5730\u8fdb\u884c\u57fa\u4e8eMFC\u7684\u5e94\u7528\u7a0b\u5e8f\u5f00\u53d1\u3002 <\/p>\n

1.1 MFC\u5e93\u5728Visual Studio 2019\u4e2d\u7684\u5b89\u88c5\u4e0e\u914d\u7f6e <\/h3>\n

\u5728\u4f7f\u7528MFC\u5e93\u4e4b\u524d，\u9996\u5148\u9700\u8981\u5728Visual Studio 2019\u4e2d\u5b89\u88c5MFC\u652f\u6301\u3002\u5b89\u88c5\u8fc7\u7a0b\u975e\u5e38\u7b80\u5355，\u901a\u8fc7Visual Studio\u5b89\u88c5\u5668\u8fdb\u884c\u7ec4\u4ef6\u9009\u62e9\u65f6，\u786e\u4fdd\u9009\u4e2d\u4e86\u201cC++\u684c\u9762\u5f00\u53d1\u201d\u4e0b\u7684\u201c\u4f7f\u7528C++\u7684\u684c\u9762\u5f00\u53d1\u201d\u9009\u9879，\u5e76\u5728\u5b50\u9009\u9879\u4e2d\u52fe\u9009\u201cMicrosoft Foundation Classes(MFC)\u201d\u3002\u5b8c\u6210\u5b89\u88c5\u540e，\u91cd\u542fVisual Studio，\u5c31\u53ef\u4ee5\u5f00\u59cb\u521b\u5efaMFC\u5e94\u7528\u7a0b\u5e8f\u4e86\u3002 <\/p>\n

1.2 \u521b\u5efa\u548c\u7406\u89e3MFC\u5e94\u7528\u7a0b\u5e8f <\/h3>\n

\u8981\u521b\u5efa\u4e00\u4e2a\u57fa\u7840\u7684MFC\u5e94\u7528\u7a0b\u5e8f，\u6253\u5f00Visual Studio，\u9009\u62e9\u201c\u6587\u4ef6\u201d->\u201c\u65b0\u5efa\u201d->\u201c\u9879\u76ee\u201d，\u7136\u540e\u5728\u9879\u76ee\u7c7b\u578b\u4e2d\u9009\u62e9\u201cMFC\u5e94\u7528\u7a0b\u5e8f\u201d\u3002\u5728\u8fd9\u91cc，\u4f60\u53ef\u4ee5\u9009\u62e9\u591a\u79cd\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\u7c7b\u578b，\u5982\u5bf9\u8bdd\u6846\u4e3a\u57fa\u7840\u7684\u5e94\u7528，\u6216\u8005\u6587\u6863\u89c6\u56fe\u7ed3\u6784\u7684\u5e94\u7528\u7b49\u3002\u6839\u636e\u4f60\u7684\u9700\u8981\u8fdb\u884c\u9009\u62e9，Visual Studio\u4f1a\u751f\u6210\u4e00\u4e2a\u5305\u542b\u6240\u6709\u5fc5\u8981\u4ee3\u7801\u7684\u9879\u76ee\u9aa8\u67b6\u3002 <\/p>\n

MFC\u5e93\u5305\u542b\u4e86\u4e00\u7cfb\u5217\u9884\u5148\u5b9a\u4e49\u7684\u7c7b，\u5982CFrameWnd\u7528\u4e8e\u7a97\u53e3\u7ba1\u7406，CDialog\u7528\u4e8e\u5bf9\u8bdd\u6846\u7b49，\u4f7f\u5f97\u521b\u5efa\u5982\u5de5\u5177\u680f\u3001\u83dc\u5355\u680f\u548c\u72b6\u6001\u680f\u7b49\u590d\u6742\u7684\u7528\u6237\u754c\u9762\u5143\u7d20\u53d8\u5f97\u975e\u5e38\u5bb9\u6613\u3002\u7406\u89e3\u8fd9\u4e9b\u7c7b\u7684\u529f\u80fd\u548c\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb，\u662f\u638c\u63e1MFC\u5f00\u53d1\u7684\u5173\u952e\u3002\u901a\u8fc7\u9605\u8bfb\u6587\u6863\u3001\u67e5\u770b\u793a\u4f8b\u4ee3\u7801\u4ee5\u53ca\u52a8\u624b\u5b9e\u8df5，\u5f00\u53d1\u8005\u53ef\u4ee5\u9010\u6b65\u6df1\u5165\u5b66\u4e60\u5e76\u6709\u6548\u5730\u5229\u7528MFC\u5e93\u6765\u6784\u5efa\u5f3a\u5927\u7684Windows\u5e94\u7528\u7a0b\u5e8f\u3002 <\/p>\n

2. TCP\/IP\u901a\u4fe1\u57fa\u7840 <\/h2>\n

2.1 \u7f51\u7edc\u901a\u4fe1\u534f\u8bae\u6982\u8ff0 <\/h3>\n

2.1.1 \u7f51\u7edc\u901a\u4fe1\u534f\u8bae\u7684\u91cd\u8981\u6027\u548c\u4f5c\u7528 <\/h4>\n

\u7f51\u7edc\u901a\u4fe1\u534f\u8bae\u662f\u4e00\u5957\u89c4\u5219，\u89c4\u5b9a\u4e86\u8ba1\u7b97\u673a\u6216\u7f51\u7edc\u8bbe\u5907\u5728\u4e92\u8054\u7f51\u4e0a\u4ea4\u6362\u6570\u636e\u7684\u65b9\u5f0f\u3002\u5b83\u662f\u7f51\u7edc\u4e2d\u4e0d\u540c\u8bbe\u5907\u4e4b\u95f4\u8fdb\u884c\u901a\u4fe1\u7684\u57fa\u7840\u3002TCP\/IP（\u4f20\u8f93\u63a7\u5236\u534f\u8bae\/\u4e92\u8054\u7f51\u534f\u8bae）\u662f\u5f53\u4eca\u4e92\u8054\u7f51\u7684\u57fa\u7840，\u5b83\u5b9a\u4e49\u4e86\u6570\u636e\u4f20\u8f93\u65f6\u7684\u683c\u5f0f\u548c\u6570\u636e\u5305\u5728\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u7684\u5904\u7406\u65b9\u5f0f\u3002\u4e86\u89e3\u8fd9\u4e9b\u534f\u8bae\u7684\u91cd\u8981\u6027\u5728\u4e8e，\u5b83\u4eec\u4fdd\u8bc1\u4e86\u4e0d\u540c\u64cd\u4f5c\u7cfb\u7edf\u548c\u786c\u4ef6\u5e73\u53f0\u4e0a\u7684\u8ba1\u7b97\u673a\u80fd\u591f\u987a\u5229\u901a\u4fe1，\u4e3a\u73b0\u4ee3\u7f51\u7edc\u5e94\u7528\u63d0\u4f9b\u4e86\u7a33\u5b9a\u6027\u548c\u517c\u5bb9\u6027\u3002 <\/p>\n

2.1.2 TCP\/IP\u534f\u8bae\u65cf\u7684\u5c42\u6b21\u7ed3\u6784 <\/h4>\n

TCP\/IP\u534f\u8bae\u65cf\u662f\u4e00\u4e2a\u5206\u5c42\u7684\u7f51\u7edc\u901a\u4fe1\u6a21\u578b，\u5206\u4e3a\u56db\u5c42： – \u5e94\u7528\u5c42：\u8d1f\u8d23\u5411\u7528\u6237\u63d0\u4f9b\u5e94\u7528\u7a0b\u5e8f\u4e4b\u95f4\u7684\u901a\u4fe1\u670d\u52a1，\u5982HTTP\u3001FTP\u3001SMTP\u7b49\u3002 – \u4f20\u8f93\u5c42：\u63d0\u4f9b\u7aef\u5230\u7aef\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1，\u4e3b\u8981\u534f\u8bae\u6709TCP\u548cUDP\u3002 – \u7f51\u9645\u5c42（\u6216\u79f0\u4e3a\u7f51\u7edc\u4e92\u8fde\u5c42）：\u8d1f\u8d23\u4e3b\u673a\u95f4\u7684\u6570\u636e\u4f20\u8f93，\u4e3b\u8981\u5b9e\u73b0IP\u534f\u8bae\u3002 – \u7f51\u7edc\u63a5\u53e3\u5c42：\u4e5f\u79f0\u4e3a\u6570\u636e\u94fe\u8def\u5c42，\u8d1f\u8d23\u786c\u4ef6\u8bbe\u5907\u95f4\u7684\u6570\u636e\u4f20\u8f93\u3002 <\/p>\n

graph TD
\n A[\u5e94\u7528\u5c42] –>|\u5c01\u88c5| B[\u4f20\u8f93\u5c42]
\n B –>|\u5c01\u88c5| C[\u7f51\u9645\u5c42]
\n C –>|\u5c01\u88c5| D[\u7f51\u7edc\u63a5\u53e3\u5c42]
\n D –>|\u53d1\u9001\u6570\u636e| E[\u786c\u4ef6\u8bbe\u5907]<\/p>\n

2.2 TCP\u4e0eUDP\u534f\u8bae\u7684\u5bf9\u6bd4\u5206\u6790 <\/h3>\n

2.2.1 TCP\u534f\u8bae\u7684\u7279\u70b9\u548c\u5e94\u7528\u573a\u666f <\/h4>\n

\u4f20\u8f93\u63a7\u5236\u534f\u8bae（TCP）\u662f\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u3001\u57fa\u4e8e\u5b57\u8282\u6d41\u7684\u4f20\u8f93\u5c42\u901a\u4fe1\u534f\u8bae\u3002\u5b83\u901a\u8fc7\u5e8f\u5217\u53f7\u3001\u786e\u8ba4\u5e94\u7b54\u673a\u5236\u3001\u91cd\u4f20\u673a\u5236\u3001\u6d41\u91cf\u63a7\u5236\u548c\u62e5\u585e\u63a7\u5236\u7b49\u65b9\u6cd5\u786e\u4fdd\u6570\u636e\u4f20\u8f93\u7684\u53ef\u9760\u6027\u3002TCP\u9002\u7528\u4e8e\u5bf9\u53ef\u9760\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528，\u5982\u7535\u5b50\u90ae\u4ef6\u3001\u6587\u4ef6\u4f20\u8f93\u3001\u8fdc\u7a0b\u767b\u5f55\u7b49\u3002 <\/p>\n

2.2.2 UDP\u534f\u8bae\u7684\u7279\u70b9\u548c\u5e94\u7528\u573a\u666f <\/h4>\n

\u7528\u6237\u6570\u636e\u62a5\u534f\u8bae（UDP）\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u3001\u65e0\u8fde\u63a5\u7684\u534f\u8bae，\u5b83\u63d0\u4f9b\u4e86\u6700\u5c0f\u7684\u5f00\u9500，\u4f46\u4e0d\u4fdd\u8bc1\u53ef\u9760\u6027\u3001\u987a\u5e8f\u548c\u6570\u636e\u5b8c\u6574\u6027\u3002UDP\u9002\u7528\u4e8e\u5bf9\u5b9e\u65f6\u6027\u8981\u6c42\u8f83\u9ad8\u7684\u5e94\u7528，\u5982\u89c6\u9891\u4f1a\u8bae\u3001\u5728\u7ebf\u6e38\u620f\u7b49\u3002 <\/p>\n

2.3 \u6570\u636e\u5c01\u88c5\u4e0e\u89e3\u5c01\u8fc7\u7a0b <\/h3>\n

2.3.1 \u6570\u636e\u5c01\u88c5\u7684\u6982\u5ff5\u548c\u6b65\u9aa4 <\/h4>\n

\u6570\u636e\u5c01\u88c5\u662f\u5c06\u8981\u4f20\u8f93\u7684\u6570\u636e\u6309\u7167\u7f51\u7edc\u534f\u8bae\u89c4\u5b9a\u7684\u683c\u5f0f\u7ec4\u7ec7\u6210\u6570\u636e\u5305\u7684\u8fc7\u7a0b\u3002\u5b83\u4ece\u5e94\u7528\u5c42\u5f00\u59cb，\u9010\u6b65\u6dfb\u52a0\u4fe1\u606f\u5f62\u6210\u5b8c\u6574\u7684\u6570\u636e\u5305\u3002\u5c01\u88c5\u7684\u6b65\u9aa4\u5305\u62ec： <\/p>\n

  • \u5e94\u7528\u5c42\u6570\u636e\u88ab\u5c01\u88c5\u5230\u4f20\u8f93\u5c42\u7684TCP\u6216UDP\u6bb5\u4e2d\u3002 <\/li>\n
  • \u4f20\u8f93\u5c42\u6bb5\u88ab\u5c01\u88c5\u5230\u7f51\u9645\u5c42\u7684IP\u6570\u636e\u62a5\u4e2d\u3002 <\/li>\n
  • \u7f51\u9645\u5c42\u6570\u636e\u62a5\u88ab\u5c01\u88c5\u5230\u7f51\u7edc\u63a5\u53e3\u5c42\u7684\u6570\u636e\u5e27\u4e2d\u3002 <\/li>\n

    2.3.2 \u6570\u636e\u89e3\u5c01\u7684\u6982\u5ff5\u548c\u6b65\u9aa4 <\/h4>\n

    \u6570\u636e\u89e3\u5c01\u662f\u6570\u636e\u5c01\u88c5\u7684\u9006\u8fc7\u7a0b，\u53d1\u751f\u5728\u6570\u636e\u5305\u5230\u8fbe\u76ee\u7684\u5730\u540e\u3002\u89e3\u5c01\u6b65\u9aa4\u5305\u62ec： <\/p>\n

  • \u6570\u636e\u5e27\u901a\u8fc7\u7f51\u7edc\u63a5\u53e3\u5c42，\u53bb\u9664\u6570\u636e\u94fe\u8def\u5c42\u7684\u5e27\u5934\u548c\u5e27\u5c3e\u3002 <\/li>\n
  • IP\u6570\u636e\u62a5\u901a\u8fc7\u7f51\u9645\u5c42，\u53bb\u9664IP\u5934\u90e8\u4fe1\u606f\u3002 <\/li>\n
  • TCP\u6216UDP\u6bb5\u901a\u8fc7\u4f20\u8f93\u5c42，\u53bb\u9664\u7aef\u53e3\u53f7\u7b49\u4fe1\u606f\u3002 <\/li>\n
  • \u5e94\u7528\u5c42\u63a5\u6536\u5230\u771f\u6b63\u7684\u5e94\u7528\u6570\u636e\u3002 <\/li>\n

    graph TD
    \n A[\u5e94\u7528\u5c42\u6570\u636e] –>|\u5c01\u88c5| B[TCP\/UDP\u6bb5]
    \n B –>|\u5c01\u88c5| C[IP\u6570\u636e\u62a5]
    \n C –>|\u5c01\u88c5| D[\u6570\u636e\u5e27]
    \n D –>|\u89e3\u5c01| C
    \n C –>|\u89e3\u5c01| B
    \n B –>|\u89e3\u5c01| A<\/p>\n

    \u4ee5\u4e0a\u662f\u300aTCP\/IP\u901a\u4fe1\u57fa\u7840\u300b\u7684\u7b2c\u4e8c\u7ae0\u5185\u5bb9，\u4ecb\u7ecd\u4e86\u7f51\u7edc\u901a\u4fe1\u534f\u8bae\u7684\u91cd\u8981\u6027\u548c\u4f5c\u7528\u3001TCP\/IP\u534f\u8bae\u65cf\u7684\u5c42\u6b21\u7ed3\u6784\u3001TCP\u4e0eUDP\u534f\u8bae\u7684\u5bf9\u6bd4\u5206\u6790\u3001\u4ee5\u53ca\u6570\u636e\u5c01\u88c5\u4e0e\u89e3\u5c01\u7684\u8fc7\u7a0b\u3002\u7406\u89e3\u8fd9\u4e9b\u57fa\u7840\u6982\u5ff5\u5bf9\u6df1\u5165\u5b66\u4e60TCP\/IP\u534f\u8bae\u53ca\u7f51\u7edc\u7f16\u7a0b\u81f3\u5173\u91cd\u8981\u3002 <\/p>\n

    3. \u521b\u5efaTCP\/IP\u670d\u52a1\u5668\u7aef\u5e94\u7528 <\/h2>\n

    3.1 \u670d\u52a1\u5668\u7aef\u5e94\u7528\u8bbe\u8ba1\u601d\u8def <\/h3>\n

    3.1.1 \u670d\u52a1\u5668\u7aef\u5e94\u7528\u7684\u6838\u5fc3\u529f\u80fd\u548c\u8bbe\u8ba1\u539f\u5219 <\/h4>\n

    \u5728\u8bbe\u8ba1TCP\/IP\u670d\u52a1\u5668\u7aef\u5e94\u7528\u65f6，\u6838\u5fc3\u529f\u80fd\u901a\u5e38\u5305\u62ec\u76d1\u542c\u7279\u5b9a\u7aef\u53e3，\u63a5\u6536\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42，\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e，\u4ee5\u53ca\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u54cd\u5e94\u3002\u8fd9\u4e9b\u529f\u80fd\u662f\u670d\u52a1\u5668\u7aef\u7a0b\u5e8f\u7684\u57fa\u77f3，\u786e\u4fdd\u4e86\u670d\u52a1\u5668\u80fd\u591f\u54cd\u5e94\u5916\u90e8\u8bf7\u6c42\u5e76\u4e0e\u5ba2\u6237\u7aef\u8fdb\u884c\u6709\u6548\u901a\u4fe1\u3002 <\/p>\n

    \u8bbe\u8ba1\u539f\u5219\u5305\u62ec： <\/p>\n

      \n
    • \u9ad8\u6548\u6027 ：\u670d\u52a1\u5668\u5e94\u8be5\u80fd\u591f\u5904\u7406\u5927\u91cf\u5e76\u53d1\u8fde\u63a5\u800c\u4e0d\u4ea7\u751f\u663e\u8457\u7684\u6027\u80fd\u4e0b\u964d\u3002 <\/li>\n
    • \u7a33\u5b9a\u6027 ：\u7a0b\u5e8f\u5e94\u8be5\u6709\u5f02\u5e38\u5904\u7406\u673a\u5236，\u80fd\u591f\u7a33\u5b9a\u8fd0\u884c，\u5373\u4f7f\u5728\u9762\u5bf9\u7f51\u7edc\u5f02\u5e38\u6216\u5176\u4ed6\u9519\u8bef\u65f6\u4e5f\u80fd\u591f\u6062\u590d\u3002 <\/li>\n
    • \u5b89\u5168\u6027 ：\u786e\u4fdd\u901a\u4fe1\u8fc7\u7a0b\u4e2d\u7684\u6570\u636e\u5b89\u5168，\u9632\u8303\u6f5c\u5728\u7684\u7f51\u7edc\u653b\u51fb\u3002 <\/li>\n
    • \u53ef\u6269\u5c55\u6027 ：\u8bbe\u8ba1\u5e94\u8003\u8651\u672a\u6765\u529f\u80fd\u7684\u589e\u52a0，\u4fbf\u4e8e\u7ef4\u62a4\u548c\u5347\u7ea7\u3002 <\/li>\n<\/ul>\n

      3.1.2 \u670d\u52a1\u5668\u7aef\u5e94\u7528\u7684\u7a0b\u5e8f\u6d41\u7a0b <\/h4>\n

      \u670d\u52a1\u5668\u7aef\u5e94\u7528\u7684\u7a0b\u5e8f\u6d41\u7a0b\u5927\u81f4\u5982\u4e0b： <\/p>\n

    • \u521d\u59cb\u5316 ：\u8bbe\u7f6e\u670d\u52a1\u5668\u76d1\u542c\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u3002 <\/li>\n
    • \u76d1\u542c ：\u521b\u5efaSocket\u5e76\u7ed1\u5b9a\u5230\u76d1\u542c\u7aef\u53e3，\u5f00\u59cb\u76d1\u542c\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002 <\/li>\n
    • \u63a5\u53d7\u8fde\u63a5 ：\u63a5\u53d7\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42，\u5e76\u521b\u5efa\u65b0\u7684Socket\u5904\u7406\u8be5\u8fde\u63a5\u3002 <\/li>\n
    • \u6570\u636e\u5904\u7406 ：\u63a5\u6536\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e，\u8fdb\u884c\u5fc5\u8981\u7684\u5904\u7406，\u5e76\u5c06\u7ed3\u679c\u53d1\u9001\u56de\u5ba2\u6237\u7aef\u3002 <\/li>\n
    • \u65ad\u5f00\u5904\u7406 ：\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5\u65f6，\u91ca\u653e\u4e0e\u8be5\u5ba2\u6237\u7aef\u76f8\u5173\u7684\u8d44\u6e90\u3002 <\/li>\n
    • \u5faa\u73af\u76d1\u542c ：\u8fd4\u56de\u5230\u76d1\u542c\u72b6\u6001，\u51c6\u5907\u5904\u7406\u4e0b\u4e00\u4e2a\u8fde\u63a5\u8bf7\u6c42\u3002 <\/li>\n

      3.2 MFC\u7f51\u7edc\u7f16\u7a0b\u57fa\u7840 <\/h3>\n

      3.2.1 MFC\u4e2d\u7f51\u7edc\u76f8\u5173\u7684\u7c7b\u548c\u51fd\u6570 <\/h4>\n

      MFC（Microsoft Foundation Classes）\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7528\u4e8e\u7b80\u5316\u7f51\u7edc\u7f16\u7a0b\u7684\u7c7b\u548c\u51fd\u6570，\u5176\u4e2d\u6700\u91cd\u8981\u7684\u5305\u62ec： <\/p>\n

        \n
      • CSocket ：\u63d0\u4f9b\u57fa\u672c\u7684Socket\u64cd\u4f5c\u529f\u80fd，\u5982\u8fde\u63a5\u3001\u76d1\u542c\u3001\u53d1\u9001\u548c\u63a5\u6536\u6570\u636e\u3002 <\/li>\n
      • CAsyncSocket ：\u63d0\u4f9b\u5f02\u6b65Socket\u64cd\u4f5c\u7684\u57fa\u7c7b，\u7528\u4e8e\u66f4\u590d\u6742\u7684\u7f51\u7edc\u64cd\u4f5c\u3002 <\/li>\n
      • CInternetSession ：\u7ba1\u7406\u6574\u4e2a\u7f51\u7edc\u4f1a\u8bdd，\u7528\u4e8e\u9ad8\u7ea7\u529f\u80fd，\u6bd4\u5982\u6587\u4ef6\u4e0b\u8f7d\u3002 <\/li>\n
      • CFtpConnection \u3001 CHttpConnection ：\u5b9e\u73b0\u7279\u5b9a\u534f\u8bae\u7684\u8fde\u63a5\u7c7b\u3002 <\/li>\n<\/ul>\n

        \u8fd9\u4e9b\u7c7b\u5c01\u88c5\u4e86\u5e95\u5c42\u7684Winsock API，\u4f7f\u5f97\u5f00\u53d1\u8005\u53ef\u4ee5\u66f4\u52a0\u65b9\u4fbf\u5730\u8fdb\u884c\u7f51\u7edc\u7f16\u7a0b\u3002 <\/p>\n

        3.2.2 \u57fa\u4e8eMFC\u7684\u7f51\u7edc\u7f16\u7a0b\u6a21\u578b <\/h4>\n

        \u5728MFC\u4e2d，\u7f51\u7edc\u7f16\u7a0b\u6a21\u578b\u53ef\u4ee5\u6982\u62ec\u4e3a\u4ee5\u4e0b\u6b65\u9aa4： <\/p>\n

      • \u521d\u59cb\u5316Winsock ：\u4f7f\u7528AfxSocketInit\u51fd\u6570\u521d\u59cb\u5316Winsock\u5e93\u3002 <\/li>\n
      • \u521b\u5efaSocket\u5bf9\u8c61 ：\u5b9e\u4f8b\u5316CSocket\u6216CAsyncSocket\u5bf9\u8c61\u3002 <\/li>\n
      • \u8fde\u63a5\u6216\u76d1\u542c ：\u4f7f\u7528\u5bf9\u8c61\u7684\u65b9\u6cd5\u5efa\u7acb\u8fde\u63a5\u6216\u5f00\u59cb\u76d1\u542c\u3002 <\/li>\n
      • \u6570\u636e\u4f20\u8f93 ：\u4f7f\u7528Receive\u548cSend\u7b49\u65b9\u6cd5\u4ea4\u6362\u6570\u636e\u3002 <\/li>\n
      • \u5173\u95edSocket ：\u5728\u64cd\u4f5c\u5b8c\u6210\u540e\u5173\u95edSocket\u8fde\u63a5\u3002 <\/li>\n
      • \u6e05\u7406Winsock ：\u64cd\u4f5c\u5b8c\u6210\u540e\u8c03\u7528AfxSocketTerm\u6e05\u7406Winsock\u3002 <\/li>\n

        3.3 \u670d\u52a1\u5668\u7aef\u5e94\u7528\u7684\u521b\u5efa\u6b65\u9aa4 <\/h3>\n

        3.3.1 \u521b\u5efaMFC\u5e94\u7528\u7a0b\u5e8f <\/h4>\n

        \u521b\u5efaTCP\/IP\u670d\u52a1\u5668\u7aef\u5e94\u7528\u901a\u5e38\u4ece\u521b\u5efa\u4e00\u4e2aMFC\u5e94\u7528\u7a0b\u5e8f\u5f00\u59cb\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\u4ee3\u7801： <\/p>\n

        #include <afxwin.h><\/p>\n

        class CServerApp : public CWinApp
        \n{
        \npublic:
        \n virtual BOOL InitInstance();
        \n};<\/p>\n

        CServerApp theApp;<\/p>\n

        BOOL CServerApp::InitInstance()
        \n{
        \n \/\/ \u5728\u8fd9\u91cc\u53ef\u4ee5\u6dfb\u52a0\u521d\u59cb\u5316\u4ee3\u7801
        \n return TRUE;
        \n}<\/p>\n

        \u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d， CServerApp \u7c7b\u7ee7\u627f\u81ea CWinApp \u5e76\u91cd\u5199\u4e86 InitInstance \u65b9\u6cd5\u3002\u8fd9\u662fMFC\u5e94\u7528\u7a0b\u5e8f\u7684\u5165\u53e3\u70b9，\u5728\u8fd9\u91cc\u53ef\u4ee5\u6267\u884c\u521d\u59cb\u5316\u64cd\u4f5c\u3002 <\/p>\n

        3.3.2 \u6dfb\u52a0\u7f51\u7edc\u901a\u4fe1\u529f\u80fd <\/h4>\n

        \u4e3a\u4e86\u5411\u5e94\u7528\u7a0b\u5e8f\u6dfb\u52a0\u7f51\u7edc\u901a\u4fe1\u529f\u80fd，\u6211\u4eec\u9700\u8981\u4f7f\u7528MFC\u63d0\u4f9b\u7684\u7f51\u7edc\u7c7b\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 CSocket \u7c7b\u521b\u5efa\u4e00\u4e2a\u76d1\u542c\u7279\u5b9a\u7aef\u53e3\u7684TCP\u670d\u52a1\u5668\u7684\u57fa\u672c\u6b65\u9aa4： <\/p>\n

        \/\/ \u5728\u67d0\u4e2a\u7c7b\u4e2d\u5b9e\u73b0\u670d\u52a1\u5668\u529f\u80fd
        \nvoid CServerSocket::ListenOnPort(UINT nPort)
        \n{
        \n CSocket server;
        \n if(server.Create(nPort)) \/\/ \u521b\u5efa\u5e76\u7ed1\u5b9a\u5230\u6307\u5b9a\u7aef\u53e3
        \n {
        \n server.Listen(); \/\/ \u5f00\u59cb\u76d1\u542c<\/p>\n

        \/\/ … \u670d\u52a1\u5668\u903b\u8f91\u4ee3\u7801
        \n }
        \n}<\/p>\n

        \u5728\u6b64\u793a\u4f8b\u4e2d， CServerSocket \u7c7b\u9700\u8981\u6709\u4e00\u4e2a\u6210\u5458\u53d8\u91cf，\u5b83\u662f\u4e00\u4e2a CSocket \u7c7b\u578b\u7684\u5b9e\u4f8b\u3002 ListenOnPort \u51fd\u6570\u521b\u5efa\u5e76\u521d\u59cb\u5316\u4e00\u4e2a CSocket \u5bf9\u8c61，\u5e76\u5f00\u59cb\u76d1\u542c\u6307\u5b9a\u7684\u7aef\u53e3\u3002 <\/p>\n

        \u9700\u8981\u6ce8\u610f\u7684\u662f，\u5b9e\u9645\u7684\u670d\u52a1\u5668\u7aef\u5e94\u7528\u8fd8\u9700\u8981\u5305\u62ec\u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5，\u5904\u7406\u5ba2\u6237\u7aef\u6570\u636e\u7b49\u903b\u8f91\u3002\u901a\u8fc7\u7ee7\u627f CSocket \u5e76\u91cd\u5199\u76f8\u5173\u4e8b\u4ef6\u5904\u7406\u65b9\u6cd5（\u5982 OnReceive \u548c OnConnect ），\u53ef\u4ee5\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u529f\u80fd\u3002 <\/p>\n

        \u4ee5\u4e0a\u5185\u5bb9\u6784\u6210\u4e86\u521b\u5efaTCP\/IP\u670d\u52a1\u5668\u7aef\u5e94\u7528\u7684\u57fa\u7840\u77e5\u8bc6\u548c\u5165\u95e8\u7ea7\u5b9e\u64cd\u6307\u5357\u3002\u8bfb\u8005\u9700\u8981\u6709\u4e00\u5b9a\u7684MFC\u6846\u67b6\u5e94\u7528\u5f00\u53d1\u7ecf\u9a8c\u4ee5\u53ca\u5bf9\u7f51\u7edc\u7f16\u7a0b\u7684\u57fa\u672c\u7406\u89e3\u3002\u5728\u672c\u7ae0\u8282\u5185\u5bb9\u7684\u57fa\u7840\u4e0a，\u540e\u7eed\u7ae0\u8282\u5c06\u6df1\u5165\u63a2\u8ba8\u5982\u4f55\u4f7f\u7528Select\u51fd\u6570\u8fdb\u884c\u591a\u8def\u590d\u7528，\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5，\u4ee5\u53ca\u5982\u4f55\u8fdb\u884c\u4ee3\u7801\u4f18\u5316\u548c\u6545\u969c\u6392\u67e5\u3002 <\/p>\n

        4. Socket\u521d\u59cb\u5316\u4e0e\u76d1\u542c <\/h2>\n

        4.1 Socket\u7f16\u7a0b\u57fa\u7840 <\/h3>\n

        4.1.1 Socket\u7684\u5b9a\u4e49\u548c\u7c7b\u578b <\/h4>\n

        \u5728\u8ba1\u7b97\u673a\u7f51\u7edc\u901a\u4fe1\u4e2d，Socket\u662f\u4e00\u4e2a\u5141\u8bb8\u7a0b\u5e8f\u8fd0\u884c\u4e8e\u4e0d\u540c\u4e3b\u673a\u95f4\u7684\u8fdb\u7a0b\u8fdb\u884c\u901a\u4fe1\u7684\u8f6f\u4ef6\u62bd\u8c61\u3002\u5b83\u662f\u7f51\u7edc\u901a\u4fe1\u7684\u57fa\u77f3，\u63d0\u4f9b\u4e86\u4e00\u79cd\u7aef\u5230\u7aef\u7684\u901a\u4fe1\u673a\u5236\u3002\u6309\u7167\u4f20\u8f93\u5c42\u534f\u8bae\u7684\u4e0d\u540c，Socket\u53ef\u4ee5\u5206\u4e3a\u4e0d\u540c\u7c7b\u578b，\u6700\u5e38\u89c1\u7684\u662f\u57fa\u4e8eTCP\u534f\u8bae\u7684Stream Socket\u548c\u57fa\u4e8eUDP\u534f\u8bae\u7684Datagram Socket\u3002 <\/p>\n

        Stream Socket\u63d0\u4f9b\u9762\u5411\u8fde\u63a5\u7684\u3001\u53ef\u9760\u7684\u6570\u636e\u4f20\u8f93\u670d\u52a1，\u4f7f\u7528TCP\u534f\u8bae\u4fdd\u8bc1\u6570\u636e\u7684\u987a\u5e8f\u548c\u5b8c\u6574\u6027\u3002Datagram Socket\u5219\u63d0\u4f9b\u65e0\u8fde\u63a5\u7684\u6570\u636e\u62a5\u670d\u52a1，\u4f7f\u7528UDP\u534f\u8bae\u4f20\u8f93\u6570\u636e，\u4e0d\u4fdd\u8bc1\u6570\u636e\u5305\u7684\u987a\u5e8f\u548c\u53ef\u9760\u6027\u3002 <\/p>\n

        4.1.2 Socket\u7684\u521b\u5efa\u3001\u7ed1\u5b9a\u548c\u76d1\u542c <\/h4>\n

        Socket\u7684\u751f\u547d\u5468\u671f\u5305\u62ec\u521b\u5efa\u3001\u7ed1\u5b9a\u3001\u76d1\u542c\u3001\u63a5\u53d7\u8fde\u63a5\u3001\u6570\u636e\u4f20\u8f93\u548c\u5173\u95ed\u7b49\u6b65\u9aa4\u3002\u521b\u5efaSocket\u901a\u5e38\u6d89\u53ca\u6307\u5b9a\u901a\u4fe1\u534f\u8bae（\u5982TCP\u6216UDP），\u5e76\u8fd4\u56de\u4e00\u4e2a\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26\u4f9b\u540e\u7eed\u64cd\u4f5c\u4f7f\u7528\u3002 <\/p>\n

        \/\/ \u521b\u5efa\u4e00\u4e2aTCP Socket
        \nSOCKET listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);<\/p>\n

        \u7ed1\u5b9aSocket\u5230\u6307\u5b9a\u7684IP\u5730\u5740\u548c\u7aef\u53e3\u662f\u76d1\u542c\u7684\u524d\u63d0\u3002\u5728TCP\/IP\u6a21\u578b\u4e2d，\u8fd9\u4e00\u6b65\u9700\u8981\u63d0\u4f9b\u4e00\u4e2asockaddr_in\u7ed3\u6784\u4f53\u3002 <\/p>\n

        \/\/ \u7ed1\u5b9aSocket\u5230\u672c\u5730IP\u548c\u7aef\u53e3
        \nsockaddr_in serverAddr;
        \nserverAddr.sin_family = AF_INET;
        \nserverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
        \nserverAddr.sin_port = htons(12345); \/\/ \u4f7f\u7528htons\u8f6c\u6362\u7aef\u53e3\u53f7<\/p>\n

        bind(listenSocket, (SOCKADDR*)&serverAddr, sizeof(serverAddr));<\/p>\n

        \u76d1\u542c\u6b65\u9aa4\u4f7fSocket\u8fdb\u5165\u7b49\u5f85\u8fde\u63a5\u7684\u72b6\u6001，\u7b49\u5f85\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002 <\/p>\n

        \/\/ \u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42
        \nlisten(listenSocket, SOMAXCONN);<\/p>\n

        4.2 \u670d\u52a1\u5668\u7aefSocket\u7684\u521d\u59cb\u5316 <\/h3>\n

        4.2.1 Socket\u9009\u9879\u8bbe\u7f6e <\/h4>\n

        Socket\u9009\u9879\u53ef\u4ee5\u5728\u521b\u5efaSocket\u540e\u8fdb\u884c\u8bbe\u7f6e，\u7528\u4ee5\u914d\u7f6e\u4e00\u4e9b\u7279\u5b9a\u7684\u884c\u4e3a\u3002\u4f8b\u5982，\u53ef\u4ee5\u8bbe\u7f6eSO_REUSEADDR\u9009\u9879\u5141\u8bb8\u5c06\u672c\u5730\u5730\u5740\u91cd\u7528\u4e8e\u65b0\u7684Socket\u3002 <\/p>\n

        \/\/ \u8bbe\u7f6eSocket\u9009\u9879SO_REUSEADDR
        \nint reuse = 1;
        \nsetsockopt(listenSocket, SOL_SOCKET, SO_REUSEADDR, (char*)&reuse, sizeof(reuse));<\/p>\n

        4.2.2 \u76d1\u542c\u7aef\u53e3\u7684\u7ed1\u5b9a <\/h4>\n

        \u76d1\u542c\u7aef\u53e3\u7ed1\u5b9a\u662f\u670d\u52a1\u5668\u7aefSocket\u521d\u59cb\u5316\u7684\u5173\u952e\u6b65\u9aa4\u3002\u5b83\u5c06Socket\u4e0e\u7279\u5b9a\u7684\u672c\u5730IP\u5730\u5740\u548c\u7aef\u53e3\u53f7\u5173\u8054\u8d77\u6765，\u4f7f\u5f97\u670d\u52a1\u5668\u80fd\u591f\u63a5\u6536\u53d1\u5f80\u8be5\u7aef\u53e3\u7684\u6570\u636e\u5305\u3002 <\/p>\n

        \/\/ \u7ed1\u5b9aSocket\u5230\u7279\u5b9aIP\u548c\u7aef\u53e3
        \nbind(listenSocket, (SOCKADDR*)&serverAddr, sizeof(serverAddr));<\/p>\n

        4.3 \u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5 <\/h3>\n

        4.3.1 \u63a5\u53d7\u8fde\u63a5\u7684\u57fa\u672c\u6d41\u7a0b <\/h4>\n

        \u5f53\u670d\u52a1\u5668\u7aefSocket\u6210\u529f\u7ed1\u5b9a\u5230\u672c\u5730\u5730\u5740\u548c\u7aef\u53e3\u540e，\u5b83\u5f00\u59cb\u76d1\u542c\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\u3002\u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u64cd\u4f5c\u901a\u5e38\u4f7f\u7528accept()\u51fd\u6570\u3002 <\/p>\n

        \/\/ \u63a5\u53d7\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42
        \nSOCKET clientSocket = accept(listenSocket, NULL, NULL);<\/p>\n

        4.3.2 \u5904\u7406\u5e76\u53d1\u8fde\u63a5\u8bf7\u6c42 <\/h4>\n

        \u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u670d\u52a1\u5668\u53ef\u80fd\u9700\u8981\u540c\u65f6\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u3002\u4e3a\u4e86\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd，\u901a\u5e38\u4f7f\u7528\u591a\u7ebf\u7a0b\u6280\u672f\u6216I\/O\u591a\u8def\u590d\u7528\u6280\u672f\u3002\u591a\u7ebf\u7a0b\u6280\u672f\u5141\u8bb8\u670d\u52a1\u5668\u4e3a\u6bcf\u4e2a\u63a5\u53d7\u7684\u8fde\u63a5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b，\u72ec\u7acb\u5730\u5904\u7406\u8be5\u8fde\u63a5\u7684\u6570\u636e\u4f20\u8f93\u3002\u800cI\/O\u591a\u8def\u590d\u7528\u6280\u672f，\u5982Select\u51fd\u6570，\u80fd\u591f\u76d1\u89c6\u591a\u4e2aSocket，\u5e76\u5728\u6709\u4e8b\u4ef6\u53d1\u751f\u65f6\u901a\u77e5\u5e94\u7528\u7a0b\u5e8f\u3002 <\/p>\n

        \/\/ \u4f7f\u7528Select\u51fd\u6570\u76d1\u89c6\u591a\u4e2aSocket
        \nfd_set readFds;
        \nFD_ZERO(&readFds);
        \nFD_SET(listenSocket, &readFds);
        \nint maxFd = listenSocket;<\/p>\n

        \/\/ \u4f7f\u7528select\u7b49\u5f85\u8bfb\u4e8b\u4ef6\u53d1\u751f
        \nint result = select(maxFd + 1, &readFds, NULL, NULL, NULL);<\/p>\n

        if (FD_ISSET(listenSocket, &readFds)) {
        \n \/\/ \u6709\u65b0\u7684\u8fde\u63a5\u8bf7\u6c42
        \n SOCKET clientSocket = accept(listenSocket, NULL, NULL);
        \n \/\/ \u521b\u5efa\u7ebf\u7a0b\u6216\u5176\u4ed6\u5904\u7406\u903b\u8f91…
        \n}<\/p>\n

        \u901a\u8fc7\u4e0a\u8ff0\u6d41\u7a0b，\u670d\u52a1\u5668\u80fd\u591f\u9ad8\u6548\u5730\u5904\u7406\u591a\u4e2a\u5e76\u53d1\u8fde\u63a5\u8bf7\u6c42，\u5b9e\u73b0\u7a33\u5b9a\u7684\u7f51\u7edc\u901a\u4fe1\u670d\u52a1\u3002 <\/p>\n

        5. \u4f7f\u7528Select\u51fd\u6570\u8fdb\u884c\u591a\u8def\u590d\u7528 <\/h2>\n

        5.1 \u591a\u8def\u590d\u7528\u6280\u672f\u6982\u8ff0 <\/h3>\n

        5.1.1 \u591a\u8def\u590d\u7528\u6280\u672f\u7684\u5fc5\u8981\u6027 <\/h4>\n

        \u591a\u8def\u590d\u7528\u6280\u672f\u662f\u73b0\u4ee3\u7f51\u7edc\u7f16\u7a0b\u7684\u6838\u5fc3\u6280\u672f\u4e4b\u4e00\u3002\u968f\u7740\u7f51\u7edc\u5e94\u7528\u7684\u5e7f\u6cdb\u6027\u548c\u590d\u6742\u6027\u7684\u589e\u52a0，\u670d\u52a1\u5668\u7aef\u9700\u8981\u540c\u65f6\u5904\u7406\u6765\u81ea\u591a\u4e2a\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002\u4f20\u7edf\u7684\u591a\u7ebf\u7a0b\u6216\u591a\u8fdb\u7a0b\u6a21\u578b\u867d\u7136\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898，\u4f46\u4f1a\u6d88\u8017\u5927\u91cf\u7684\u7cfb\u7edf\u8d44\u6e90，\u7279\u522b\u662f\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b，\u8d44\u6e90\u7684\u5f00\u9500\u4f1a\u6210\u4e3a\u7cfb\u7edf\u6027\u80fd\u7684\u74f6\u9888\u3002\u56e0\u6b64，\u591a\u8def\u590d\u7528\u6280\u672f\u5e94\u8fd0\u800c\u751f，\u5b83\u5141\u8bb8\u4e00\u4e2a\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u53ef\u4ee5\u540c\u65f6\u76d1\u542c\u591a\u4e2aSocket\u8fde\u63a5\u4e0a\u7684\u4e8b\u4ef6，\u5f53\u67d0\u4e2aSocket\u51c6\u5907\u5c31\u7eea（\u4f8b\u5982\u6570\u636e\u5230\u8fbe\u3001\u8fde\u63a5\u6210\u529f\u7b49）\u65f6，\u8fdb\u7a0b\u4f1a\u88ab\u901a\u77e5\u5e76\u8fdb\u884c\u76f8\u5e94\u5904\u7406，\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6548\u7387\u548c\u6269\u5c55\u6027\u3002 <\/p>\n

        5.1.2 Select\u51fd\u6570\u7684\u5de5\u4f5c\u673a\u5236 <\/h4>\n

        Select\u51fd\u6570\u662f\u4e00\u79cd\u5b9e\u73b0\u591a\u8def\u590d\u7528\u7684\u673a\u5236，\u5b83\u63d0\u4f9b\u4e86\u5728\u5355\u4e2a\u7ebf\u7a0b\u4e2d\u5904\u7406\u591a\u4e2aSocket\u7684\u80fd\u529b\u3002Select\u51fd\u6570\u901a\u8fc7\u76d1\u89c6\u4e00\u7ec4Socket\u63cf\u8ff0\u7b26，\u5f53\u4efb\u610f\u4e00\u4e2a\u6216\u591a\u4e2aSocket\u5904\u4e8e\u53ef\u8bfb\u3001\u53ef\u5199\u6216\u5f02\u5e38\u72b6\u6001\u65f6，Select\u51fd\u6570\u5c06\u8fd4\u56de，\u5e76\u544a\u77e5\u8c03\u7528\u8005\u54ea\u4e9bSocket\u53d1\u751f\u4e86\u53d8\u5316\u3002\u8fd9\u5141\u8bb8\u7a0b\u5e8f\u5728\u5355\u4e2a\u7ebf\u7a0b\u4e2d\u6709\u6548\u5730\u7b49\u5f85\u591a\u4e2a\u4e8b\u4ef6，\u800c\u65e0\u9700\u4e3a\u6bcf\u4e2aSocket\u521b\u5efa\u72ec\u7acb\u7684\u7ebf\u7a0b，\u4ece\u800c\u6781\u5927\u5730\u4f18\u5316\u4e86\u6027\u80fd\u3002 <\/p>\n

        5.2 Select\u51fd\u6570\u7684\u4f7f\u7528\u65b9\u6cd5 <\/h3>\n

        5.2.1 Select\u51fd\u6570\u7684\u53c2\u6570\u8be6\u89e3 <\/h4>\n

        Select\u51fd\u6570\u7684\u539f\u578b\u5982\u4e0b： <\/p>\n

        int select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout);<\/p>\n

          \n
        • nfds \u662f\u9700\u8981\u68c0\u67e5\u7684\u6700\u5927\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u7f16\u53f7\u52a01\u3002 <\/li>\n
        • readfds \u6307\u5411\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u96c6\u5408，\u8be5\u96c6\u5408\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u51c6\u5907\u597d\u8bfb\u53d6\u65f6，\u5c06\u88ab\u7f6e\u4f4d\u3002 <\/li>\n
        • writefds \u6307\u5411\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u96c6\u5408，\u8be5\u96c6\u5408\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u51c6\u5907\u597d\u5199\u5165\u65f6，\u5c06\u88ab\u7f6e\u4f4d\u3002 <\/li>\n
        • exceptfds \u6307\u5411\u4e00\u4e2a\u6587\u4ef6\u63cf\u8ff0\u7b26\u96c6\u5408，\u8be5\u96c6\u5408\u4e2d\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26\u51fa\u73b0\u5f02\u5e38\u65f6，\u5c06\u88ab\u7f6e\u4f4d\u3002 <\/li>\n
        • timeout \u6307\u5b9a\u7b49\u5f85\u4e8b\u4ef6\u7684\u6700\u957f\u65f6\u95f4\u3002 <\/li>\n<\/ul>\n

          5.2.2 \u5b9e\u73b0\u975e\u963b\u585e\u5f0fSocket\u901a\u4fe1 <\/h4>\n

          \u4f7f\u7528Select\u51fd\u6570\u5b9e\u73b0\u975e\u963b\u585e\u5f0fSocket\u901a\u4fe1\u7684\u57fa\u672c\u6b65\u9aa4\u5982\u4e0b： <\/p>\n

        • \u521d\u59cb\u5316\u4e09\u4e2afd_set\u7c7b\u578b\u7684\u53d8\u91cf，\u5206\u522b\u7528\u4e8e\u8bfb\u3001\u5199\u548c\u5f02\u5e38\u4e8b\u4ef6\u3002 <\/li>\n
        • \u5c06\u9700\u8981\u76d1\u542c\u7684Socket\u52a0\u5165\u5230\u76f8\u5e94\u7684fd_set\u4e2d\u3002 <\/li>\n
        • \u8c03\u7528Select\u51fd\u6570，\u5e76\u4f20\u5165\u521d\u59cb\u5316\u597d\u7684fd_set\u3002 <\/li>\n
        • Select\u51fd\u6570\u8fd4\u56de\u540e，\u68c0\u67e5\u54ea\u4e9bSocket\u53d1\u751f\u4e86\u53d8\u5316\u3002 <\/li>\n
        • \u6839\u636e\u8fd4\u56de\u7ed3\u679c\u5bf9\u76f8\u5e94\u7684Socket\u8fdb\u884c\u8bfb\u53d6\u6216\u5199\u5165\u64cd\u4f5c\u3002 <\/li>\n
        • \u6e05\u7a7afd_set，\u4e3a\u4e0b\u4e00\u6b21Select\u8c03\u7528\u505a\u51c6\u5907\u3002 <\/li>\n

          5.3 \u5b9e\u73b0\u4e00\u5bf9\u591a\u540c\u6b65\u901a\u4fe1 <\/h3>\n

          5.3.1 \u540c\u6b65\u901a\u4fe1\u7684\u6982\u5ff5\u548c\u4f18\u52bf <\/h4>\n

          \u540c\u6b65\u901a\u4fe1\u6307\u7684\u662f\u670d\u52a1\u5668\u7aef\u5728\u5904\u7406\u4e00\u4e2aSocket\u7684\u8bf7\u6c42\u65f6，\u4e0d\u4f1a\u54cd\u5e94\u5176\u4ed6Socket\u7684\u8bf7\u6c42，\u76f4\u5230\u5f53\u524d\u8bf7\u6c42\u5904\u7406\u5b8c\u6210\u3002\u7136\u800c，\u5728\u5b9e\u9645\u5e94\u7528\u4e2d，\u670d\u52a1\u5668\u9700\u8981\u540c\u65f6\u5904\u7406\u591a\u4e2a\u8bf7\u6c42，\u56e0\u6b64\u9700\u8981\u4e00\u79cd\u673a\u5236\u6765\u5b9e\u73b0\u591a\u4e2aSocket\u4e4b\u95f4\u7684\u540c\u6b65\u901a\u4fe1\u3002\u901a\u8fc7Select\u51fd\u6570，\u53ef\u4ee5\u5728\u5355\u4e2a\u7ebf\u7a0b\u4e2d\u5b9e\u73b0\u5bf9\u591a\u4e2aSocket\u7684\u540c\u6b65\u76d1\u542c\u548c\u54cd\u5e94，\u8fd9\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u7684\u54cd\u5e94\u901f\u5ea6，\u8fd8\u80fd\u6709\u6548\u5730\u7ba1\u7406\u8d44\u6e90\u6d88\u8017\u3002 <\/p>\n

          5.3.2 Select\u51fd\u6570\u5728\u4e00\u5bf9\u591a\u901a\u4fe1\u4e2d\u7684\u5e94\u7528 <\/h4>\n

          \u5728\u4e00\u5bf9\u591a\u901a\u4fe1\u4e2d，Select\u51fd\u6570\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u76d1\u542c\u591a\u4e2aSocket\u4e0a\u7684\u4e8b\u4ef6，\u5e76\u4e14\u6839\u636e\u4e8b\u4ef6\u7c7b\u578b\u5bf9\u76f8\u5e94\u7684Socket\u8fdb\u884c\u5904\u7406\u3002\u4f8b\u5982，\u5982\u679c\u4e00\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u4e86\u6570\u636e，Select\u51fd\u6570\u4f1a\u901a\u77e5\u670d\u52a1\u5668\u7aef\u8be5Socket\u4e0a\u6709\u53ef\u8bfb\u4e8b\u4ef6，\u670d\u52a1\u5668\u5219\u53ef\u4ee5\u4ece\u8be5Socket\u8bfb\u53d6\u6570\u636e\u3002\u5982\u679c\u670d\u52a1\u5668\u9700\u8981\u5411\u591a\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e，\u4e5f\u53ef\u4ee5\u4f7f\u7528Select\u51fd\u6570\u6765\u786e\u5b9a\u54ea\u4e9bSocket\u662f\u53ef\u5199\u7684，\u4ece\u800c\u540c\u6b65\u5730\u5411\u591a\u4e2a\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e\u3002\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u4fdd\u8bc1\u4e86\u6570\u636e\u5904\u7406\u7684\u987a\u5e8f\u6027，\u4e5f\u63d0\u9ad8\u4e86\u901a\u4fe1\u7684\u6548\u7387\u3002 <\/p>\n

          \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p>\n

          \u7b80\u4ecb：\u672c\u6587\u4ecb\u7ecd\u5982\u4f55\u5229\u7528Visual Studio 2019\u548cMFC\u5e93\u6784\u5efaTCP\/IP\u901a\u4fe1\u5e94\u7528\u3002\u8be6\u7ec6\u8bf4\u660e\u4e86\u521b\u5efa\u4e00\u5bf9\u591a\u540c\u6b65\u901a\u4fe1\u7684TCP\/IP\u670d\u52a1\u5668\u7aef\u7684\u8fc7\u7a0b，\u5305\u62ec\u521d\u59cb\u5316Socket\u3001\u76d1\u542c\u8fde\u63a5\u3001\u63a5\u53d7\u8fde\u63a5\u548c\u5904\u7406\u6570\u636e\u7684\u6b65\u9aa4\u3002\u540c\u65f6，\u4ecb\u7ecd\u4e86\u4f7f\u7528Select\u51fd\u6570\u8fdb\u884c\u591a\u8def\u590d\u7528\u7684\u65b9\u6cd5，\u4ee5\u63d0\u9ad8\u670d\u52a1\u5668\u5904\u7406\u591a\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u6548\u7387\u3002\u901a\u8fc7\u793a\u4f8b\u4ee3\u7801，\u52a0\u6df1\u5bf9\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u901a\u4fe1\u673a\u5236\u7684\u7406\u89e3\u3002 <\/p>\n

          \u672c\u6587\u8fd8\u6709\u914d\u5957\u7684\u7cbe\u54c1\u8d44\u6e90，\u70b9\u51fb\u83b7\u53d6 \"menu-r.4af5f7ec.gif\" <\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

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