多線程計數,怎樣堅持計數精確的辦法

起首應用設計形式中的單件形式，避免屢次初始化對象，形成拜訪空間的紛歧致。

計數處要加lock，將其他線程計數臨時壅塞，包管計數的准確性。

假如要想及時計數及時輸入，可以將計數和輸入處一並lock處置，否則分歧線程的計數和輸入成果未必按次序處置，

如斯加鎖能包管按次序處置按次序輸入，不外如許若干都 喪失了一些機能

代碼中加鎖地位很主要

此法式會增長三次運算，緣由是本線程未到200次，然則必定會有一個線程第一次增長所以在add裡再做斷定

CommonSigleton MyCounter =CommonSigleton.Instance;
  /// <summary>
  /// 線程任務
  /// </summary>
public void DoSomeWork()
{
    ///結構顯示字符串
    string results = "";

    ///創立一個Sigleton實例

    System.Threading.Thread.Sleep(100);

    int i = 0;
    while (MyCounter.GetCounter() < 200)
    {
        //包管計數與輸入分歧，即使計數與輸入之間加上時光距離也會為這塊區域加鎖，避免其他線程操作
        lock (this)
        {
            ///開端計數
            MyCounter.Add();
            System.Threading.Thread.Sleep(100);
            Thread thread = Thread.CurrentThread;
            results += "線程";
            results += i++.ToString() + "——〉" + thread.Name + " ";
            results += "以後的計數：";
            results += MyCounter.GetCounter().ToString();
            results += "\n";

            Console.WriteLine(results);

            // 清空顯示字符串
            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();

   ///線程0也只履行和其他線程雷同的任務
   DoSomeWork();
  }
 }