private void BtnStart_Click(object sender, EventArgs e)
        {
            //锁定区域同时进行数据处理
            Monitor.Enter(threadlock);
            try
            {
                //启动线程
                ThreadStart thsrt = new ThreadStart(Listen);
                //10个线程全部执行统一的方法
                Thread[] threads = new Thread[10];                //mythread = new Thread(thsrt);
                if (State)   //如果状态是true,表示可以开启
                {
                    //循环10个线程
                    for (int i = 0; i < 10; i++)
                    {
                        threads[i] = new Thread(thsrt);
                        //设置线程为后台后台线程 ,也叫守护线程
                        threads[i].IsBackground = true;
                    }
                    //循环遍历所有的10个线程
                    foreach (Thread th in threads)
                    {
                        //开启线程
                        th.Start();
                    }
                    //mythread.Start();
                    //线程睡眠1000毫秒
                    Thread.Sleep(1000);
                    //将状态改为false
                    State = false;
                    this.BtnStart.Text = "停止监听";
                    this.Messagetxt.Text = "服务已启动,正在侦听...";
                }
                else
                {
                    //中断线程
                    mythread.Interrupt();
                    //终止线程
                    mythread.Abort();
                    State = true;
                    this.BtnStart.Text = "启动监听";
                    this.Messagetxt.Text = "服务已关闭,等待开启...";
                }
            }
            catch (Exception ex)
            {
                DAL.Log.Write(DateTime.Now + ex.ToString() + "\r\n\r\n");
            }
            finally
            {
                //退出对于线程的锁定
                Monitor.Exit(threadlock);
            }
        }