volidatile关键字

/volidatile关键字的使用，动手便代码实例操作

class SchoolBus
    {
      volatile private bool isAlive;//关键字volatile表明该变量是活动的，确保在每一个线程在访问isAlive在每一个时刻都能得到最新的值
      public SchoolBus(bool isAlive)
      {
          this.isAlive = isAlive;
      }
      public void Start()
      {
          Console.Write("The school bus is starting...");
          Thread.Sleep(3000);
          Running();

         
      }
      public void Running()
      {
          while (isAlive)
          {
              Thread.Sleep(100);
              Console.WriteLine("The school bus is walking......");
          }
           if (isAlive == false)
              Console.WriteLine("OK,MainThread,You can run!I am stopping!!");
      }
      public void Stop(bool b)
      {
          this.isAlive = b;
      }

    
    }

class BusManager
    {
        public static void Main(string[] args)
        {

            SchoolBus bus = new SchoolBus(true);
            ThreadStart start = new ThreadStart(bus.Start);
            Thread t = new Thread(start);
            t.Start();//线程启动
            while (!t.IsAlive) ;
            //Console.WriteLine("The School Bus starts to run！！！");
            Thread.Sleep(6000);//暂停主线程，确保辅助线程能够运行一段时间
          
            bus.Stop(false);
            //Thread.Sleep(2000);//确保辅助线程完成任务
            t.Join();//确保辅助线程完全结束之后，主线程才能执行下去
            Console.WriteLine("The School Bus is stopping...");
            Console.WriteLine(t.ThreadState.ToString());//输出stopped

           if (t.ThreadState == ThreadState.Stopped)
                Console.WriteLine("The assitant thread is stopped!");
            //string str = null;
            //string strName = string.Empty;
            //if (strName=="")
            //{
            //    Console.WriteLine("Equal");//输出Equal;

            //}

           
            Console.Read();

        }
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