void Getlisten()
        {
            //开始监听
            try
            {
               ip = IPAddress.Parse(CommAddress.Text);
            }
            catch
            {
                MessageBox.Show("您输入的IP地址格式不正确,请重新输入!");
            }
            try
            {
                Thread thread = new Thread(new ThreadStart(Server));
                thread.Start();
            }
            catch (Exception ee)
            {
                  Statelsb.Items.Add(ee.ToString());            }
        }