{"id":104496,"date":"2026-09-12T16:09:25","date_gmt":"2026-09-12T08:09:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/104496.html"},"modified":"2026-09-12T16:09:25","modified_gmt":"2026-09-12T08:09:25","slug":"c-winforms-%e4%bb%8e%e9%9b%b6%e5%ae%9e%e7%8e%b0%e4%b8%80%e4%b8%aa-tcp-%e9%80%9a%e4%bf%a1%e7%a8%8b%e5%ba%8f%ef%bc%88%e6%9c%8d%e5%8a%a1%e7%ab%af-%e5%ae%a2%e6%88%b7%e7%ab%af%ef%bc%8c%e6%94%af%e6%8c%81","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/104496.html","title":{"rendered":"C# WinForms \u4ece\u96f6\u5b9e\u73b0\u4e00\u4e2a TCP \u901a\u4fe1\u7a0b\u5e8f\uff08\u670d\u52a1\u7aef + \u5ba2\u6237\u7aef\uff0c\u652f\u6301\u591a\u5ba2\u6237\u7aef\u4e0e\u5e7f\u64ad\uff09"},"content":{"rendered":"

C# WinForms \u4ece\u96f6\u5b9e\u73b0\u4e00\u4e2a TCP \u901a\u4fe1\u7a0b\u5e8f（\u670d\u52a1\u7aef + \u5ba2\u6237\u7aef，\u652f\u6301\u591a\u5ba2\u6237\u7aef\u4e0e\u5e7f\u64ad）<\/h2>\n

\u672c\u6587\u8bb0\u5f55\u81ea\u5df1\u7528 C# WinForms + .NET Framework 4.7.2 \u5199\u7684\u4e00\u4e2a\u5165\u95e8\u7ea7 TCP \u901a\u4fe1 Demo，\u5305\u542b\u4e00\u4e2a\u670d\u52a1\u7aef\u548c\u4e00\u4e2a\u5ba2\u6237\u7aef\u3002\u670d\u52a1\u7aef\u57fa\u4e8e TcpListener，\u5ba2\u6237\u7aef\u57fa\u4e8e TcpClient，\u670d\u52a1\u7aef\u652f\u6301\u591a\u4e2a\u5ba2\u6237\u7aef\u540c\u65f6\u8fde\u63a5，\u5e76\u80fd\u5411\u6240\u6709\u5728\u7ebf\u5ba2\u6237\u7aef\u5e7f\u64ad\u6d88\u606f\u3002\u9002\u5408\u521a\u63a5\u89e6 Socket \/ TCP \u7684\u540c\u5b66\u7167\u7740\u6284\u4e00\u904d\u8dd1\u901a\u3002<\/p>\n

\n

\u4e00\u3001\u6548\u679c\u5c55\u793a<\/h3>\n

（\u670d\u52a1\u7aef\u4e3b\u754c\u9762）
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

（\u5ba2\u6237\u7aef\u4e3b\u754c\u9762）
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

（\u901a\u4fe1\u8054\u8c03\u6548\u679c）
\n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

\n

\u4e8c\u3001\u5f00\u53d1\u73af\u5883<\/h3>\n\n\u9879\u76ee\u8bf4\u660e<\/tr>\n\n\n\n\n\n\n
IDE<\/td>\nVisual Studio 2022<\/td>\n<\/tr>\n
\u6846\u67b6<\/td>\n.NET Framework 4.7.2<\/td>\n<\/tr>\n
\u6280\u672f\u6808<\/td>\nC# + WinForms + System.Net.Sockets<\/td>\n<\/tr>\n
\u89e3\u51b3\u65b9\u6848\u7ed3\u6784<\/td>\n\u4e00\u4e2a\u89e3\u51b3\u65b9\u6848 work.9.11.TCP.sln，\u5185\u542b\u4e24\u4e2a WinForms \u5de5\u7a0b：TCP\u670d\u52a1\u7aefT（\u670d\u52a1\u7aef）\u3001TCP\u5ba2\u6237\u7aef（\u5ba2\u6237\u7aef）<\/td>\n<\/tr>\n
\u9ed8\u8ba4\u76d1\u542c\u7aef\u53e3<\/td>\n60000（0~100 \u662f\u7cfb\u7edf\u9884\u7559\u7aef\u53e3，\u4e2a\u4eba\u5b66\u4e60\u5efa\u8bae\u7528 3000 \/ 8080 \/ 60000 \u8fd9\u79cd）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

💡 \u540c\u4e00\u53f0\u673a\u5668\u4e0a\u8c03\u8bd5，\u670d\u52a1\u7aef IP \u53ef\u4ee5\u586b 127.0.0.1；\u5c40\u57df\u7f51\u5185\u4e92\u8fde\u7528 ipconfig \u67e5\u5230\u7684\u672c\u673a IPv4 \u5730\u5740\u5373\u53ef（\u672c\u9879\u76ee\u91cc\u9ed8\u8ba4\u586b\u7684\u662f 192.168.215.47，\u6362\u673a\u5668\u8bb0\u5f97\u6539）\u3002<\/p>\n

\n

\u4e09\u3001\u6574\u4f53\u601d\u8def<\/h3>\n

TCP \u901a\u4fe1\u662f\u5178\u578b\u7684 C \/ S \u6a21\u578b：<\/p>\n

  • \u670d\u52a1\u7aef\u5148\u5728\u67d0\u4e2a IP + \u7aef\u53e3\u4e0a"\u542f\u52a8\u76d1\u542c"，\u7136\u540e\u4e00\u76f4\u7b49\u5f85\u5ba2\u6237\u7aef\u6765\u8fde\u3002<\/li>\n
  • \u5ba2\u6237\u7aef\u77e5\u9053\u670d\u52a1\u7aef\u7684 IP \u548c\u7aef\u53e3\u540e，\u4e3b\u52a8\u53d1\u8d77\u8fde\u63a5\u3002<\/li>\n
  • \u8fde\u63a5\u5efa\u7acb\u540e，\u53cc\u65b9\u901a\u8fc7\u4e00\u4e2a NetworkStream（\u7f51\u7edc\u6d41）\u4e92\u76f8\u6536\u53d1\u5b57\u8282：\u53d1\u9001\u65b9\u628a\u5b57\u7b26\u4e32\u6309 UTF-8 \u7f16\u7801\u6210 byte[] \u5199\u8fdb\u6d41，\u63a5\u6536\u65b9\u4ece\u6d41\u91cc\u8bfb\u51fa byte[] \u518d\u89e3\u7801\u6210\u5b57\u7b26\u4e32\u3002<\/li>\n
  • \u56e0\u4e3a\u6536\u6d88\u606f\u662f"\u968f\u65f6\u53ef\u80fd\u6765"\u7684，\u4e0d\u80fd\u5361\u4f4f UI \u7ebf\u7a0b，\u6240\u4ee5\u63a5\u6536\u5fc5\u987b\u653e\u5728\u540e\u53f0\u7ebf\u7a0b \/ \u5f02\u6b65 Task \u91cc；\u62ff\u5230\u6570\u636e\u540e\u518d\u7528 Invoke \u5207\u56de UI \u7ebf\u7a0b\u5237\u65b0\u754c\u9762\u3002<\/li>\n
  • \u672c\u9879\u76ee\u670d\u52a1\u7aef\u7528\u4e00\u4e2a Dictionary<EndPoint, TcpClient> \u7ef4\u62a4\u6240\u6709\u5df2\u8fde\u63a5\u7684\u5ba2\u6237\u7aef，\u65e2\u80fd\u7ed9\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5355\u72ec\u6536\u6d88\u606f，\u4e5f\u80fd\u904d\u5386\u5b57\u5178\u505a"\u5e7f\u64ad"\u3002<\/li>\n

    \u6574\u4f53\u6d41\u7a0b\u53ef\u4ee5\u6982\u62ec\u6210\u4e0b\u9762\u8fd9\u5f20\u65f6\u5e8f\u56fe：<\/p>\n

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

    \n

    \u56db\u3001\u670d\u52a1\u7aef\u5b9e\u73b0（TCP\u670d\u52a1\u7aefT）<\/h3>\n

    4.1 \u754c\u9762\u5e03\u5c40<\/h4>\n

    \u670d\u52a1\u7aef\u7a97\u4f53\u4ece\u4e0a\u5230\u4e0b\u5206\u4e09\u5757：<\/p>\n

      \n
    • TCP\u8fde\u63a5 \u5206\u7ec4\u6846：IP \u5730\u5740\u8f93\u5165\u6846 textBox1\u3001\u7aef\u53e3\u8f93\u5165\u6846 textBox2\u3001\u542f\u52a8\/\u505c\u6b62\u6309\u94ae button1\u3002<\/li>\n
    • \u63a5\u6536\u6570\u636e \u5206\u7ec4\u6846：\u53ea\u8bfb\u591a\u884c\u6587\u672c\u6846 richTextBox1，\u7528\u6765\u6eda\u52a8\u663e\u793a\u6240\u6709\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6d88\u606f\u3002<\/li>\n
    • \u5e7f\u64ad\u901a\u77e5 \u5206\u7ec4\u6846：\u8f93\u5165\u6846 richTextBox2 + "\u53d1\u9001"\u6309\u94ae button2，\u628a\u6d88\u606f\u7fa4\u53d1\u5728\u7ebf\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ul>\n

      4.2 \u5b57\u6bb5\u5b9a\u4e49<\/h4>\n

      \u5148\u5728\u7a97\u4f53\u7c7b\u91cc\u51c6\u5907\u597d\u670d\u52a1\u7aef\u5bf9\u8c61\u3001\u53d6\u6d88\u4ee4\u724c\u3001\u4ee5\u53ca\u4fdd\u5b58\u6240\u6709\u5ba2\u6237\u7aef\u7684\u5b57\u5178：<\/p>\n

      using<\/span> System<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Collections.<\/span>Generic<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Net<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Net.<\/span>Sockets<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Text<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Threading<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Threading.<\/span>Tasks<\/span>;<\/span>
      \nusing<\/span> System.<\/span>Windows.<\/span>Forms<\/span>;<\/span><\/p>\n

      namespace<\/span> TCP\u670d\u52a1\u7aefT
      \n{<\/span>
      \n public<\/span> partial<\/span> class<\/span> Form1<\/span> :<\/span> Form<\/span><\/span>
      \n {<\/span>
      \n \/\/ tcp \u76d1\u542c：\u4ee3\u8868 tcp \u670d\u52a1\u5668<\/span>
      \n TcpListener<\/span> _server;<\/span>
      \n CancellationTokenSource<\/span> _cts;<\/span><\/p>\n

      \/\/ \u5b57\u5178\u4fdd\u5b58\u6240\u6709\u5df2\u8fde\u63a5\u7684\u5ba2\u6237\u7aef，key \u662f\u5ba2\u6237\u7aef\u7684\u7ec8\u7ed3\u70b9(IP+\u7aef\u53e3)，value \u662f\u5bf9\u5e94\u7684 TcpClient<\/span>
      \n \/\/ \u53d1\u5e7f\u64ad\u7684\u65f6\u5019，\u904d\u5386\u5b57\u5178\u91cc\u7684\u6bcf\u4e00\u4e2a\u5ba2\u6237\u7aef\u90fd\u80fd\u6536\u5230<\/span>
      \n Dictionary<<\/span>EndPoint,<\/span> TcpClient><\/span><\/span> _clients =<\/span> new<\/span> Dictionary<<\/span>EndPoint,<\/span> TcpClient><\/span><\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      public<\/span> Form1<\/span>(<\/span>)<\/span>
      \n {<\/span>
      \n InitializeComponent<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u7a97\u4f53\u4e00\u52a0\u8f7d\u5c31\u6839\u636e\u754c\u9762\u4e0a\u586b\u597d\u7684 IP \u548c\u7aef\u53e3\u51c6\u5907\u597d\u670d\u52a1\u5668\u5bf9\u8c61<\/span>
      \n IPEndPoint<\/span> iPEndPoint =<\/span> new<\/span> IPEndPoint<\/span>(<\/span>
      \n IPAddress.<\/span>Parse<\/span>(<\/span>textBox1.<\/span>Text)<\/span>,<\/span>
      \n int<\/span>.<\/span>Parse<\/span>(<\/span>textBox2.<\/span>Text)<\/span>)<\/span>;<\/span>
      \n _server =<\/span> new<\/span> TcpListener<\/span>(<\/span>iPEndPoint)<\/span>;<\/span>
      \n }<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      4.3 \u542f\u52a8 \/ \u505c\u6b62\u670d\u52a1\u5668<\/h4>\n

      \u70b9\u51fb\u6309\u94ae\u540e\u5728"\u542f\u52a8\u670d\u52a1\u5668"\u548c"\u505c\u6b62\u670d\u52a1\u5668"\u4e4b\u95f4\u5207\u6362：<\/p>\n

      private<\/span> void<\/span><\/span> button1_Click<\/span>(<\/span>object<\/span><\/span> sender,<\/span> EventArgs<\/span> e)<\/span>
      \n{<\/span>
      \n if<\/span> (<\/span>button1.<\/span>Text ==<\/span> "\u542f\u52a8\u670d\u52a1\u5668"<\/span>)<\/span>
      \n {<\/span>
      \n \/\/ Start(100)：100 \u4ee3\u8868\u5f53\u524d\u670d\u52a1\u5668\u7684\u6700\u5927\u76d1\u542c（\u6392\u961f）\u6570\u91cf<\/span>
      \n _server?.<\/span>Start<\/span>(<\/span>100<\/span>)<\/span>;<\/span>
      \n button1.<\/span>Text =<\/span> "\u505c\u6b62\u670d\u52a1\u5668"<\/span>;<\/span><\/p>\n

      \/\/ \u542f\u52a8\u540e\u4e0d\u5141\u8bb8\u518d\u4fee\u6539 IP \u548c\u7aef\u53e3，\u9632\u6b62\u8fd0\u884c\u4e2d\u6539\u914d\u7f6e<\/span>
      \n textBox1.<\/span>ReadOnly =<\/span> true<\/span>;<\/span>
      \n textBox2.<\/span>ReadOnly =<\/span> true<\/span>;<\/span><\/p>\n

      \/\/ \u8fdb\u5165"\u63a5\u53d7\u5ba2\u6237\u7aef\u8fde\u63a5"\u7684\u5faa\u73af<\/span>
      \n AcceptRequest<\/span>(<\/span>)<\/span>;<\/span>
      \n }<\/span>
      \n else<\/span>
      \n {<\/span>
      \n \/\/ \u901a\u77e5\u540e\u53f0\u5faa\u73af\u9000\u51fa<\/span>
      \n _cts.<\/span>Cancel<\/span>(<\/span>)<\/span>;<\/span>
      \n _server?.<\/span>Stop<\/span>(<\/span>)<\/span>;<\/span>
      \n button1.<\/span>Text =<\/span> "\u542f\u52a8\u670d\u52a1\u5668"<\/span>;<\/span>
      \n textBox1.<\/span>ReadOnly =<\/span> false<\/span>;<\/span>
      \n textBox2.<\/span>ReadOnly =<\/span> false<\/span>;<\/span>
      \n }<\/span>
      \n}<\/span><\/p>\n

      4.4 \u5faa\u73af\u63a5\u6536\u5ba2\u6237\u7aef\u8fde\u63a5<\/h4>\n

      \u8fd9\u4e00\u6bb5\u662f\u670d\u52a1\u7aef\u7684\u6838\u5fc3：\u5f00\u4e00\u4e2a\u540e\u53f0 Task，\u4e0d\u505c\u68c0\u67e5"\u6709\u6ca1\u6709\u65b0\u5ba2\u6237\u7aef\u8fde\u8fdb\u6765"，\u6709\u5c31\u63a5\u6536\u5e76\u767b\u8bb0\u5230\u5b57\u5178\u91cc，\u540c\u65f6\u4e3a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u5355\u72ec\u5f00\u4e00\u6761\u6536\u6d88\u606f\u7684\u5faa\u73af：<\/p>\n

      \/\/ \u8d1f\u8d23\u76d1\u542c\u8fde\u63a5<\/span>
      \nprivate<\/span> void<\/span><\/span> AcceptRequest<\/span>(<\/span>)<\/span>
      \n{<\/span>
      \n _cts =<\/span> new<\/span> CancellationTokenSource<\/span>(<\/span>)<\/span>;<\/span>
      \n Task.<\/span>Run<\/span>(<\/span>async<\/span> (<\/span>)<\/span> =><\/span>
      \n {<\/span>
      \n while<\/span> (<\/span>!<\/span>_cts.<\/span>IsCancellationRequested)<\/span>
      \n {<\/span>
      \n \/\/ Pending()：\u5982\u679c\u8fd9\u6b21\u5faa\u73af\u4e2d\u6ca1\u6709\u76d1\u542c\u5230\u65b0\u5ba2\u6237\u7aef\u8fde\u63a5，\u5c31\u662f false，\u76f4\u63a5\u8df3\u8fc7\u8282\u7701\u5f00\u9500<\/span>
      \n if<\/span> (<\/span>!<\/span>_server.<\/span>Pending<\/span>(<\/span>)<\/span>)<\/span> continue<\/span>;<\/span><\/p>\n

      \/\/ \u5f02\u6b65\u63a5\u6536\u5f53\u524d\u8fde\u63a5\u4e0a\u6765\u7684\u5ba2\u6237\u7aef<\/span>
      \n TcpClient<\/span> client =<\/span> await<\/span> _server.<\/span>AcceptTcpClientAsync<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u62ff\u5230\u8fd9\u4e2a\u5ba2\u6237\u7aef\u7684\u7ec8\u7ed3\u70b9(IP+\u7aef\u53e3)\u4f5c\u4e3a\u552f\u4e00\u6807\u8bc6<\/span>
      \n EndPoint<\/span> _endPoint =<\/span> client.<\/span>Client.<\/span>RemoteEndPoint;<\/span><\/p>\n

      if<\/span> (<\/span>!<\/span>_clients.<\/span>ContainsKey<\/span>(<\/span>_endPoint)<\/span>)<\/span>
      \n {<\/span>
      \n \/\/ \u5b57\u5178\u91cc\u6ca1\u6709，\u8bf4\u660e\u662f\u65b0\u5ba2\u6237\u7aef，\u767b\u8bb0\u8fdb\u53bb<\/span>
      \n _clients.<\/span>Add<\/span>(<\/span>_endPoint,<\/span> client)<\/span>;<\/span>
      \n \/\/ \u4e3a\u8fd9\u4e2a\u5ba2\u6237\u7aef\u542f\u52a8\u4e00\u6761\u72ec\u7acb\u7684"\u6536\u6d88\u606f"\u5faa\u73af<\/span>
      \n ClientOneMessage<\/span>(<\/span>client)<\/span>;<\/span>
      \n }<\/span>
      \n }<\/span>
      \n }<\/span>,<\/span> _cts.<\/span>Token)<\/span>;<\/span>
      \n}<\/span><\/p>\n

      4.5 \u63a5\u6536\u67d0\u4e2a\u5ba2\u6237\u7aef\u7684\u6d88\u606f\u5e76\u56de\u663e<\/h4>\n

      \u6bcf\u4e2a\u5ba2\u6237\u7aef\u5bf9\u5e94\u4e00\u4e2a\u540e\u53f0\u5faa\u73af，\u8bfb\u5230\u6d88\u606f\u540e：\u2460 \u663e\u793a\u5230\u754c\u9762；\u2461 \u56de\u4e00\u6761"\u670d\u52a1\u5668\u6536\u5230\u4e86\u6d88\u606f:xxx"\u7ed9\u8be5\u5ba2\u6237\u7aef：<\/p>\n

      private<\/span> void<\/span><\/span> ClientOneMessage<\/span>(<\/span>TcpClient<\/span> _c)<\/span>
      \n{<\/span>
      \n Task.<\/span>Run<\/span>(<\/span>async<\/span> (<\/span>)<\/span> =><\/span>
      \n {<\/span>
      \n while<\/span> (<\/span>!<\/span>_cts.<\/span>IsCancellationRequested &&<\/span> _c.<\/span>Connected)<\/span>
      \n {<\/span>
      \n NetworkStream<\/span> _stream =<\/span> _c.<\/span>GetStream<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u8fd9\u6b21\u5faa\u73af\u6ca1\u6709\u6570\u636e\u5c31\u8df3\u8fc7，\u907f\u514d\u7a7a\u8bfb\u6d6a\u8d39\u8d44\u6e90<\/span>
      \n if<\/span> (<\/span>!<\/span>_stream.<\/span>DataAvailable)<\/span> continue<\/span>;<\/span><\/p>\n

      \/\/ \u6309\u5f53\u524d\u53ef\u7528\u5b57\u8282\u6570\u5f00\u7f13\u51b2，\u8bfb\u5b8c\u5373\u6b62<\/span>
      \n byte<\/span>[<\/span>]<\/span><\/span> buffer =<\/span> new<\/span> byte<\/span><\/span>[<\/span>_c.<\/span>Available]<\/span>;<\/span>
      \n await<\/span> _stream.<\/span>ReadAsync<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> buffer.<\/span>Length)<\/span>;<\/span><\/p>\n

      \/\/ UTF-8 \u89e3\u7801\u6210\u5b57\u7b26\u4e32<\/span>
      \n string<\/span><\/span> message =<\/span> Encoding.<\/span>UTF8.<\/span>GetString<\/span>(<\/span>buffer)<\/span>;<\/span><\/p>\n

      \/\/ \u8de8\u7ebf\u7a0b\u66f4\u65b0 UI \u5fc5\u987b\u7528 Invoke<\/span>
      \n Invoke<\/span>(<\/span>new<\/span> Action<\/span>(<\/span>(<\/span>)<\/span> =><\/span>
      \n {<\/span>
      \n richTextBox1.<\/span>AppendText<\/span>(<\/span>
      \n $"<\/span>{<\/span>DateTime.<\/span>Now.<\/span>ToString<\/span>(<\/span>"MM\u6708dd\u65e5HH:mm"<\/span>)<\/span><\/span>}<\/span><\/span>: <\/span>{<\/span>message<\/span>}<\/span><\/span>\\\\r\\\\n"<\/span><\/span>)<\/span>;<\/span>
      \n }<\/span>)<\/span>)<\/span>;<\/span><\/p>\n

      \/\/ \u7ed9\u53d1\u6d88\u606f\u7684\u8fd9\u4e2a\u5ba2\u6237\u7aef\u56de\u4e00\u53e5\u786e\u8ba4<\/span>
      \n byte<\/span>[<\/span>]<\/span><\/span> data =<\/span> Encoding.<\/span>UTF8.<\/span>GetBytes<\/span>(<\/span>$"\u670d\u52a1\u5668\u6536\u5230\u4e86\u6d88\u606f:<\/span>{<\/span>message<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span>;<\/span>
      \n _ =<\/span> _stream.<\/span>WriteAsync<\/span>(<\/span>data,<\/span> 0<\/span>,<\/span> data.<\/span>Length)<\/span>;<\/span>
      \n }<\/span>
      \n }<\/span>)<\/span>;<\/span>
      \n}<\/span><\/p>\n

      4.6 \u5411\u6240\u6709\u5ba2\u6237\u7aef\u5e7f\u64ad<\/h4>\n

      \u904d\u5386\u5b57\u5178\u91cc\u7684\u6bcf\u4e00\u4e2a\u5728\u7ebf\u5ba2\u6237\u7aef，\u628a\u540c\u4e00\u6761\u6d88\u606f\u5199\u8fdb\u53bb：<\/p>\n

      \/\/ \u5e7f\u64ad\u53d1\u9001<\/span>
      \nprivate<\/span> void<\/span><\/span> button2_Click<\/span>(<\/span>object<\/span><\/span> sender,<\/span> EventArgs<\/span> e)<\/span>
      \n{<\/span>
      \n if<\/span> (<\/span>richTextBox2.<\/span>Text ==<\/span> ""<\/span>)<\/span> return<\/span>;<\/span><\/p>\n

      \/\/ \u62ff\u5230\u6240\u6709\u5ba2\u6237\u7aef<\/span>
      \n foreach<\/span> (<\/span>var<\/span><\/span> item in<\/span> _clients)<\/span>
      \n {<\/span>
      \n TcpClient<\/span> _client =<\/span> item.<\/span>Value;<\/span>
      \n if<\/span> (<\/span>!<\/span>_client.<\/span>Connected)<\/span> continue<\/span>;<\/span><\/p>\n

      NetworkStream<\/span> networkStream =<\/span> _client.<\/span>GetStream<\/span>(<\/span>)<\/span>;<\/span>
      \n byte<\/span>[<\/span>]<\/span><\/span> buffer =<\/span> Encoding.<\/span>UTF8.<\/span>GetBytes<\/span>(<\/span>richTextBox2.<\/span>Text)<\/span>;<\/span>
      \n networkStream.<\/span>WriteAsync<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> buffer.<\/span>Length)<\/span>;<\/span>
      \n }<\/span>
      \n richTextBox2.<\/span>Text =<\/span> ""<\/span>;<\/span>
      \n}<\/span><\/p>\n

      \n

      \u4e94\u3001\u5ba2\u6237\u7aef\u5b9e\u73b0（TCP\u5ba2\u6237\u7aef）<\/h3>\n

      5.1 \u754c\u9762\u5e03\u5c40<\/h4>\n

      \u548c\u670d\u52a1\u7aef\u57fa\u672c\u5bf9\u79f0：<\/p>\n

        \n
      • TCP\u8fde\u63a5 \u5206\u7ec4\u6846：IP\u3001\u7aef\u53e3\u3001\u5efa\u7acb\/\u65ad\u5f00\u8fde\u63a5\u6309\u94ae button1\u3002<\/li>\n
      • \u63a5\u6536\u6570\u636e \u5206\u7ec4\u6846：richTextBox1，\u663e\u793a\u670d\u52a1\u7aef\u53d1\u6765\u7684\u5185\u5bb9\u3002<\/li>\n
      • \u53d1\u9001\u6570\u636e \u5206\u7ec4\u6846：\u8f93\u5165\u6846 richTextBox2 + "\u53d1\u9001"\u6309\u94ae button2\u3002<\/li>\n<\/ul>\n

        5.2 \u5b57\u6bb5\u4e0e\u540e\u53f0\u63a5\u6536\u5faa\u73af<\/h4>\n

        TcpClient \u672c\u8eab\u6ca1\u6709"\u6536\u5230\u6d88\u606f"\u4e8b\u4ef6，\u901a\u5e38\u7684\u505a\u6cd5\u5c31\u662f\u7528 while + Task \u540e\u53f0\u8f6e\u8be2，\u518d\u7528 CancellationTokenSource \u5728\u65ad\u5f00\u8fde\u63a5\u65f6\u628a\u5faa\u73af\u505c\u4e0b\u6765：<\/p>\n

        using<\/span> System<\/span>;<\/span>
        \nusing<\/span> System.<\/span>Net.<\/span>Sockets<\/span>;<\/span>
        \nusing<\/span> System.<\/span>Text<\/span>;<\/span>
        \nusing<\/span> System.<\/span>Threading<\/span>;<\/span>
        \nusing<\/span> System.<\/span>Threading.<\/span>Tasks<\/span>;<\/span>
        \nusing<\/span> System.<\/span>Windows.<\/span>Forms<\/span>;<\/span><\/p>\n

        namespace<\/span> TCP\u5ba2\u6237\u7aef
        \n{<\/span>
        \n public<\/span> partial<\/span> class<\/span> Form1<\/span> :<\/span> Form<\/span><\/span>
        \n {<\/span>
        \n \/\/ \u521d\u59cb\u5316\u5ba2\u6237\u7aef\u5bf9\u8c61<\/span>
        \n TcpClient<\/span> _client =<\/span> null<\/span>;<\/span><\/p>\n

        \/\/ \u4ee4\u724c：\u7528\u6765\u4e3a\u67d0\u6bb5\u5f02\u6b65\u4ee3\u7801\u6253\u4e0a\u6807\u8bb0，\u4ece\u800c\u5b9e\u73b0\u53d6\u6d88\u4fe1\u53f7\u7684\u4f20\u9012<\/span>
        \n CancellationTokenSource<\/span> _cts =<\/span> null<\/span>;<\/span><\/p>\n

        public<\/span> Form1<\/span>(<\/span>)<\/span>
        \n {<\/span>
        \n InitializeComponent<\/span>(<\/span>)<\/span>;<\/span>
        \n \/\/ TcpClient \u6ca1\u6709\u4e13\u95e8\u7684\u63a5\u6536\u4e8b\u4ef6，\u4e00\u822c\u7528\u5b9a\u65f6\u5668\u6216\u8005 while \u8f6e\u8be2\u63a5\u6536<\/span>
        \n }<\/span><\/p>\n

        private<\/span> async<\/span> void<\/span><\/span> ReadLoad<\/span>(<\/span>)<\/span>
        \n {<\/span>
        \n if<\/span> (<\/span>_client !=<\/span> null<\/span>)<\/span>
        \n {<\/span>
        \n _cts =<\/span> new<\/span> CancellationTokenSource<\/span>(<\/span>)<\/span>;<\/span>
        \n await<\/span> Task.<\/span>Run<\/span>(<\/span>async<\/span> (<\/span>)<\/span> =><\/span>
        \n {<\/span>
        \n \/\/ IsCancellationRequested \u9ed8\u8ba4\u4e3a false；\u8c03\u7528 _cts.Cancel() \u540e\u4f1a\u53d8\u6210 true<\/span>
        \n while<\/span> (<\/span>!<\/span>_cts.<\/span>IsCancellationRequested &&<\/span> _client.<\/span>Connected)<\/span>
        \n {<\/span>
        \n NetworkStream<\/span> _stream =<\/span> _client.<\/span>GetStream<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        \/\/ \u8fd9\u6b21\u5faa\u73af\u6ca1\u6709\u6570\u636e\u5c31\u8df3\u8fc7，\u8282\u7701\u5f00\u9500<\/span>
        \n if<\/span> (<\/span>!<\/span>_stream.<\/span>DataAvailable)<\/span> continue<\/span>;<\/span><\/p>\n

        byte<\/span>[<\/span>]<\/span><\/span> buffer =<\/span> new<\/span> byte<\/span><\/span>[<\/span>_client.<\/span>Available]<\/span>;<\/span>
        \n await<\/span> _stream.<\/span>ReadAsync<\/span>(<\/span>buffer,<\/span> 0<\/span>,<\/span> buffer.<\/span>Length)<\/span>;<\/span>
        \n string<\/span><\/span> message =<\/span> Encoding.<\/span>UTF8.<\/span>GetString<\/span>(<\/span>buffer)<\/span>;<\/span><\/p>\n

        \/\/ \u5207\u56de UI \u7ebf\u7a0b\u663e\u793a<\/span>
        \n Invoke<\/span>(<\/span>new<\/span> Action<\/span>(<\/span>(<\/span>)<\/span> =><\/span>
        \n {<\/span>
        \n richTextBox1.<\/span>AppendText<\/span>(<\/span>
        \n $"<\/span>{<\/span>DateTime.<\/span>Now.<\/span>ToString<\/span>(<\/span>"MM\u6708dd\u65e5HH:mm"<\/span>)<\/span><\/span>}<\/span><\/span>:<\/span>{<\/span>message<\/span>}<\/span><\/span>\\\\r\\\\n"<\/span><\/span>)<\/span>;<\/span>
        \n }<\/span>)<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n }<\/span>,<\/span> _cts.<\/span>Token)<\/span>;<\/span>
        \n }<\/span>
        \n }<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        5.3 \u5efa\u7acb\u8fde\u63a5 \/ \u65ad\u5f00\u8fde\u63a5<\/h4>\n

        \u70b9\u51fb\u6309\u94ae\u5207\u6362\u4e24\u79cd\u72b6\u6001：<\/p>\n

        private<\/span> void<\/span><\/span> button1_Click<\/span>(<\/span>object<\/span><\/span> sender,<\/span> EventArgs<\/span> e)<\/span>
        \n{<\/span>
        \n if<\/span> (<\/span>button1.<\/span>Text ==<\/span> "\u5efa\u7acb\u8fde\u63a5"<\/span>)<\/span>
        \n {<\/span>
        \n button1.<\/span>Text =<\/span> "\u65ad\u5f00\u8fde\u63a5"<\/span>;<\/span><\/p>\n

        try<\/span>
        \n {<\/span>
        \n _client =<\/span> new<\/span> TcpClient<\/span>(<\/span>)<\/span>;<\/span>
        \n \/\/ ConnectAsync \u5f02\u6b65\u5411\u670d\u52a1\u5668\u53d1\u8d77\u8fde\u63a5<\/span>
        \n \/\/ 1) ip \u5730\u5740 2) \u7aef\u53e3\u53f7（0~100 \u662f\u7cfb\u7edf\u9884\u7559\u7aef\u53e3，\u4e2a\u4eba\u90e8\u7f72\u5efa\u8bae 3000\/8080\/60000）<\/span>
        \n _client.<\/span>ConnectAsync<\/span>(<\/span>textBox1.<\/span>Text,<\/span> int<\/span>.<\/span>Parse<\/span>(<\/span>textBox2.<\/span>Text)<\/span>)<\/span>;<\/span><\/p>\n

        MessageBox.<\/span>Show<\/span>(<\/span>"\u8fde\u63a5\u6210\u529f"<\/span>)<\/span>;<\/span><\/p>\n

        \/\/ \u8fde\u63a5\u5efa\u7acb\u540e\u542f\u52a8\u540e\u53f0\u63a5\u6536\u5faa\u73af<\/span>
        \n ReadLoad<\/span>(<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n catch<\/span> (<\/span>Exception<\/span> ex)<\/span>
        \n {<\/span>
        \n MessageBox.<\/span>Show<\/span>(<\/span>$"\u670d\u52a1\u5668\u8fde\u63a5\u5931\u8d25：<\/span>{<\/span>ex.<\/span>Message<\/span>}<\/span><\/span>"<\/span><\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n }<\/span>
        \n else<\/span>
        \n {<\/span>
        \n button1.<\/span>Text =<\/span> "\u5efa\u7acb\u8fde\u63a5"<\/span>;<\/span><\/p>\n

        \/\/ \u4fee\u6539\u4ee4\u724c\u72b6\u6001，\u901a\u77e5\u540e\u53f0\u63a5\u6536\u5faa\u73af\u9000\u51fa<\/span>
        \n _cts?.<\/span>Cancel<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        _client.<\/span>Close<\/span>(<\/span>)<\/span>;<\/span>
        \n _client =<\/span> null<\/span>;<\/span><\/p>\n

        MessageBox.<\/span>Show<\/span>(<\/span>"\u65ad\u5f00\u6210\u529f"<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        5.4 \u53d1\u9001\u6d88\u606f<\/h4>\n

        \u53ea\u6709\u5728\u8fde\u63a5\u72b6\u6001\u4e0b\u624d\u5141\u8bb8\u53d1\u9001：<\/p>\n

        \/\/ \u53d1\u9001\u4fe1\u606f<\/span>
        \nprivate<\/span> void<\/span><\/span> button2_Click<\/span>(<\/span>object<\/span><\/span> sender,<\/span> EventArgs<\/span> e)<\/span>
        \n{<\/span>
        \n if<\/span> (<\/span>string<\/span>.<\/span>IsNullOrWhiteSpace<\/span>(<\/span>richTextBox2.<\/span>Text)<\/span>)<\/span> return<\/span>;<\/span><\/p>\n

        if<\/span> (<\/span>_client.<\/span>Connected)<\/span>
        \n {<\/span>
        \n \/\/ 1) \u62ff\u5230\u5f53\u524d\u901a\u4fe1\u7684\u7f51\u7edc\u6d41<\/span>
        \n NetworkStream<\/span> _stream =<\/span> _client.<\/span>GetStream<\/span>(<\/span>)<\/span>;<\/span><\/p>\n

        \/\/ 2) \u628a\u5b57\u7b26\u4e32\u6309 UTF-8 \u52a0\u5de5\u6210\u5b57\u8282\u6570\u7ec4<\/span>
        \n byte<\/span>[<\/span>]<\/span><\/span> _data =<\/span> Encoding.<\/span>UTF8.<\/span>GetBytes<\/span>(<\/span>richTextBox2.<\/span>Text)<\/span>;<\/span><\/p>\n

        \/\/ 3) \u5f02\u6b65\u5199\u51fa\u53bb<\/span>
        \n _stream.<\/span>WriteAsync<\/span>(<\/span>_data,<\/span> 0<\/span>,<\/span> _data.<\/span>Length)<\/span>;<\/span><\/p>\n

        richTextBox2.<\/span>Text =<\/span> ""<\/span>;<\/span>
        \n }<\/span>
        \n else<\/span>
        \n {<\/span>
        \n MessageBox.<\/span>Show<\/span>(<\/span>"\u8bf7\u5148\u6784\u5efa\u8fde\u63a5"<\/span>)<\/span>;<\/span>
        \n }<\/span>
        \n}<\/span><\/p>\n

        \n

        \u516d\u3001\u8fd0\u884c\u4e0e\u6d4b\u8bd5<\/h3>\n
      • \u5148\u542f\u52a8\u670d\u52a1\u7aef\u5de5\u7a0b TCP\u670d\u52a1\u7aefT，\u786e\u8ba4 IP \/ \u7aef\u53e3\u65e0\u8bef\u540e\u70b9 \u542f\u52a8\u670d\u52a1\u5668\u3002<\/li>\n
      • \u518d\u542f\u52a8\u4e00\u4e2a\u6216\u591a\u4e2a\u5ba2\u6237\u7aef\u5de5\u7a0b TCP\u5ba2\u6237\u7aef，\u586b\u540c\u6837\u7684 IP \u548c\u7aef\u53e3，\u70b9 \u5efa\u7acb\u8fde\u63a5\u3002<\/li>\n
      • \u5728\u5ba2\u6237\u7aef\u8f93\u5165\u6d88\u606f\u70b9 \u53d1\u9001，\u670d\u52a1\u7aef"\u63a5\u6536\u6570\u636e"\u533a\u5e94\u6eda\u52a8\u663e\u793a\u8be5\u6d88\u606f，\u5e76\u56de\u4e00\u53e5 \u670d\u52a1\u5668\u6536\u5230\u4e86\u6d88\u606f:xxx\u3002<\/li>\n
      • \u5728\u670d\u52a1\u7aef"\u5e7f\u64ad\u901a\u77e5"\u91cc\u8f93\u5165\u6d88\u606f\u70b9 \u53d1\u9001，\u6240\u6709\u5728\u7ebf\u5ba2\u6237\u7aef\u90fd\u5e94\u80fd\u5728"\u63a5\u6536\u6570\u636e"\u533a\u770b\u5230\u8fd9\u6761\u6d88\u606f\u3002<\/li>\n

        （\u8fd0\u884c\u6d4b\u8bd5\u622a\u56fe）
        \n\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\"<\/p>\n

        \n

        \u4e03\u3001\u51e0\u4e2a\u5bb9\u6613\u8e29\u7684\u5751<\/h3>\n
          \n
        • \u8de8\u7ebf\u7a0b\u8bbf\u95ee UI \u63a7\u4ef6\u4f1a\u629b\u5f02\u5e38：\u540e\u53f0\u7ebf\u7a0b\u91cc\u62ff\u5230\u6d88\u606f\u540e，\u5fc5\u987b\u7528 Invoke（\u6216 BeginInvoke）\u5207\u56de UI \u7ebf\u7a0b\u518d\u53bb\u6539 richTextBox，\u5426\u5219\u4f1a\u62a5"\u7ebf\u7a0b\u95f4\u64cd\u4f5c\u65e0\u6548"\u3002<\/li>\n
        • \u63a5\u6536\u4e0d\u80fd\u6b7b\u7b49 Read：\u672c\u9879\u76ee\u7528 _stream.DataAvailable \u505a\u975e\u963b\u585e\u5224\u65ad，\u6ca1\u6709\u6570\u636e\u5c31 continue，\u8fd9\u6837\u5faa\u73af\u53ef\u4ee5\u968f\u65f6\u901a\u8fc7 _cts.Cancel() \u5e72\u51c0\u9000\u51fa；\u5982\u679c\u76f4\u63a5 Read \u6b7b\u7b49，\u53d6\u6d88\u4ee4\u724c\u53ef\u80fd\u54cd\u5e94\u4e0d\u5230\u3002<\/li>\n
        • \u7aef\u53e3\u4e0d\u8981\u88ab\u5360\u7528：\u540c\u4e00\u53f0\u673a\u5668\u4e0a\u7aef\u53e3\u53ea\u80fd\u7ed1\u4e00\u6b21\u3002\u5982\u679c\u670d\u52a1\u7aef\u6ca1\u6b63\u5e38\u9000\u51fa\u53c8\u91cd\u65b0\u542f\u52a8，\u4f1a\u62a5"\u901a\u5e38\u6bcf\u4e2a\u5957\u63a5\u5b57\u5730\u5740\u53ea\u5141\u8bb8\u4f7f\u7528\u4e00\u6b21"，\u628a\u8fdb\u7a0b\u5173\u5e72\u51c0\u6216\u8005\u6362\u4e2a\u7aef\u53e3\u5373\u53ef\u3002<\/li>\n
        • \u7f16\u7801\u8981\u7edf\u4e00：\u4e24\u7aef\u90fd\u7528 Encoding.UTF8，\u4e0d\u8981\u4e00\u8fb9 UTF-8 \u4e00\u8fb9 Default，\u5426\u5219\u4e2d\u6587\u4f1a\u4e71\u7801\u3002<\/li>\n
        • \u65ad\u5f00\u8fde\u63a5\u8981\u91ca\u653e\u8d44\u6e90：_cts.Cancel() + _client.Close() \u8981\u6210\u5bf9\u51fa\u73b0，\u4e0d\u7136\u540e\u53f0 Task \u4f1a\u4e00\u76f4\u6302\u7740\u3002<\/li>\n
        • ConnectAsync \u6ca1 await：\u793a\u4f8b\u91cc\u4e3a\u4e86\u7b80\u5355\u76f4\u63a5\u8c03\u7528\u4e86 ConnectAsync，\u5b66\u4e60\u9636\u6bb5\u591f\u7528；\u4e25\u8c28\u5199\u6cd5\u5efa\u8bae await \u5b83\u5e76\u653e\u5728 try\/catch \u91cc，\u8fd9\u6837\u8fde\u63a5\u5931\u8d25\u80fd\u7b2c\u4e00\u65f6\u95f4\u62ff\u5230\u5f02\u5e38\u3002<\/li>\n<\/ul>\n
          \n

          \u516b\u3001\u603b\u7ed3<\/h3>\n

          \u8fd9\u4e2a Demo \u867d\u7136\u5c0f，\u4f46\u628a TCP \u901a\u4fe1\u91cc\u51e0\u4e2a\u6700\u6838\u5fc3\u7684\u70b9\u90fd\u8986\u76d6\u5230\u4e86：<\/p>\n

            \n
          • \u670d\u52a1\u7aef：TcpListener + Bind\/Start + AcceptTcpClientAsync \u63a5\u53d7\u8fde\u63a5；<\/li>\n
          • \u5ba2\u6237\u7aef：TcpClient.ConnectAsync \u53d1\u8d77\u8fde\u63a5；<\/li>\n
          • \u6536\u53d1：NetworkStream + byte[] + Encoding.UTF8；<\/li>\n
          • \u591a\u5ba2\u6237\u7aef：\u7528 Dictionary \u7ef4\u62a4\u8fde\u63a5\u8868，\u5929\u7136\u652f\u6301\u5e7f\u64ad；<\/li>\n
          • \u5f02\u6b65\u4e0e\u53d6\u6d88：Task.Run + CancellationTokenSource + Invoke\u3002<\/li>\n<\/ul>\n

            \u5728\u6b64\u57fa\u7840\u4e0a\u53ef\u4ee5\u7ee7\u7eed\u6269\u5c55：\u7ed9\u6bcf\u6761\u6d88\u606f\u52a0\u534f\u8bae\u5934（\u957f\u5ea6 + \u5185\u5bb9，\u89e3\u51b3\u7c98\u5305\u95ee\u9898）\u3001\u5ba2\u6237\u7aef\u6389\u7ebf\u65f6\u4ece\u5b57\u5178\u91cc\u79fb\u9664\u3001\u505a\u6210\u6d88\u606f\u961f\u5217 \/ \u7fa4\u804a\u623f\u95f4\u3001\u6216\u8005\u628a UI \u6362\u6210 WPF \/ \u63a7\u5236\u53f0\u7248\u672c，\u90fd\u662f\u5f88\u597d\u7684\u7ec3\u624b\u65b9\u5411\u3002<\/p>\n

            \n

            \u672c\u6587\u4e3a\u5b66\u4e60\u7b14\u8bb0，\u4ee3\u7801\u5728 Visual Studio 2022 + .NET Framework 4.7.2 \u4e0b\u8c03\u8bd5\u901a\u8fc7\u3002\u5982\u679c\u5bf9\u4f60\u6709\u5e2e\u52a9，\u6b22\u8fce\u70b9\u8d5e\u6536\u85cf～ \u6709\u95ee\u9898\u8bc4\u8bba\u533a\u4e00\u8d77\u4ea4\u6d41\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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