C# Socket 多线程问题！
启动一个线程：
  CheckForIllegalCrossThreadCalls = false;
 Thread th = new Thread(new ThreadStart(ReciveMessage));
 th.Start();
  public void ReciveMessage()
        {
                while (true)
                {
                    if (client != null)
                    {
                        byte[] recvBytes = new byte[120];
                        bytes = client.Receive(recvBytes, recvBytes.Length, 0);
                        byte[] bytefour = new byte[4];                   
                        bytefour[3] = recvBytes[0];
                        bytefour[2] = recvBytes[1];
                        bytefour[1] = recvBytes[2];
                        bytefour[0] = recvBytes[3];
                        float s = BitConverter.ToSingle(bytefour, 0);
                        textBox1.Text += s.ToString();
                        textBox1.Text += "     ";
                    }
                    else
                    {                   
                       label1.Text = "123";                     
                    }
                }