//初始化TcpListener
//启动一个新的线程，假定该线程的目标函数是ThreadATargetFun（object _TcpListener）
//线程启动的时候要把TCPListener传递到目标函数中。
//在该函数中：
//先把object强制转换成TCPListener
_TcpListener.Start()
while(true)
{
    TcpClient ClientTCPClient = _TCPListen.AcceptTcpClient();
    Thread ReadClientConnectThread = new Thread(new ParameterizedThreadStart(ReadClientDataThreadFun)); //ReadClientDataThreadFun(object ClientTCPClient)                       
 ReadClientConnectThread.Start(_tmpdtuclient);//传递该客户端
}

 /// <summary>
        /// 接收客户端发送的数据的线程的目标函数
        /// </summary>
        protected void ReadClientDataThreadFun(object obj)
        {
              //要增加自己的try、catch模块，判断是否客户端断开连接，或者网络中断等故障
              //
              //强制转换成TCPClient，获取网络流
              while(true)
              {
                     int _readBytesCount = -1;
                    byte[] _receiveBuffer = new byte[512];
                    _readBytesCount = _tmpdtuclient.DTUNetworkStream.Read(_receiveBuffer, 0, _receiveBuffer.Length);//如果客户端断开了连接，则read方法会立即返回0
                    if (_readBytesCount == 0)
                    {
                        //客户端退出连接。
                        SetMSG("客户端退出连接！客户端信息：" + _tmpdtuclient.DTUTCPClient.Client.RemoteEndPoint.ToString());
                        Thread.CurrentThread.Abort();
                    }
                   //读写网络流
              }
        }

------解决方案--------------------
C# code

private void StartListen()
        [align=left]{
            this.TcpListener = new TcpListener(19808);
            this.TcpListener.Start();
            while( true )
            {
                TcpClient TcpClient = this.TcpListener.AcceptTcpClient();
                NetworkStream MyStream = TcpClient.GetStream();
                byte [] bytes = new byte[2048];
                int bytesRead = MyStream.Read(bytes,0,bytes.Length);
                string message = System.Text.Encoding.UTF8.GetString(bytes,0,bytesRead);
            }
        }

        private void MainForm_Load(object sender, System.EventArgs e