多线程同步标记

package duoxiancheng;

public class MaiPiao implements Runnable{

    //当前票数
    private int count=10;
    @Override
    public void run() {
        // TODO Auto-generated method stub
        
        
        // 卖票
        while(true)
        {
            //线程同步块
            synchronized ("同步标记：0；1") {
                try {
                    Thread.sleep(100);
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
                if(count>0){
                count--;//卖出
                System.out.println(Thread.currentThread().getName()+"剩余票数="+count);
                }
                else
                {
                    break;
                }
            }
            
            
            
        }
    }
    
    public static void main(String[] args)
    {
        MaiPiao m=new MaiPiao();
        
        Thread t1=new Thread(m,"售票点1");
        Thread t2=new Thread(m,"售票点2");
        Thread t3=new Thread(m,"售票点3");
        t1.start();
        t2.start();
        t3.start();
    }
    
    

}