修改监听为后台线程...

UDPClient/Frm_Client.cs

@@ -33,9 +33,11 @@ namespace UDPClient
             endpoint = new IPEndPoint(IPAddress.Any, 0);
             //启动客户端监听
             Thread t = new Thread(new ThreadStart(ClientThread));
+            t.IsBackground = true;
             t.Start();
             //启动Web监听
             Thread w = new Thread(new ThreadStart(WebListen));
+            w.IsBackground = true;
             w.Start();
             //初始化Timer
             tmr.Interval = 390;
@@ -77,7 +79,7 @@ namespace UDPClient
             {
                 HttpListener listerner = new HttpListener();
                 listerner.AuthenticationSchemes = AuthenticationSchemes.Anonymous;//指定身份验证 Anonymous匿名访问
-                listerner.Prefixes.Add("http://127.0.0.1:25330/web/");
+                listerner.Prefixes.Add("http://127.0.0.1:2533/web/");
                 listerner.Start();
                 Console.WriteLine("WebServer Start Successed.......");
                 while (true)
@@ -94,6 +96,7 @@ namespace UDPClient
                         Console.WriteLine(str);
                         byte[] buf = Encoding.Default.GetBytes(str);
                         client.Send(buf, buf.Length, new IPEndPoint(IPAddress.Parse("127.0.0.1"), 25433));
+                       
                     }
                     ctx.Response.Close();
                 }

UDPServer/Frm_Server.cs

@@ -28,6 +28,7 @@ namespace UDPServer
             endpoint = new IPEndPoint(IPAddress.Any, 0);
             //启动客户端监听
             Thread t = new Thread(new ThreadStart(ClientThread));
+            t.IsBackground = true;
             t.Start();
         }