CommonSigleton MyCounter =CommonSigleton.Instance;   /// <summary>   /// 线程工作   /// </summary> public void DoSomeWork() {     ///构造显示字符串     string results = "";     ///创建一个Sigleton实例     System.Threading.Thread.Sleep(100);     int i = 0;     while (MyCounter.GetCounter() < 200)     {         //保证计数与输出一致，即便计数与输出之间加上时间间隔也会为这块区域加锁，防止其他线程操作         lock (this)         {             ///开始计数             MyCounter.Add();             System.Threading.Thread.Sleep(100);             Thread thread = Thread.CurrentThread;             results += "线程";             results += i++.ToString() + "——〉" + thread.Name + " ";             results += "当前的计数：";             results += MyCounter.GetCounter().ToString();             results += "\n";             Console.WriteLine(results);             // 清空显示字符串             results = "";         }     } }   public void StartMain()   {    Thread thread0 = Thread.CurrentThread;    thread0.Name = "Thread 0";    Thread thread1 =new Thread(new ThreadStart(DoSomeWork));    thread1.Name = "Thread 1";    Thread thread2 =new Thread(new ThreadStart(DoSomeWork));    thread2.Name = "Thread 2";    Thread thread3 =new Thread(new ThreadStart(DoSomeWork));    thread3.Name = "Thread 3";             thread1.Start();             thread2.Start();             thread3.Start();    ///线程0也只执行和其他线程相同的工作    DoSomeWork();   }  }