using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading;//线程同步与多线程程序中的隐患namespace Multithreading_hazard{    class Program    {        private static int stickets = 100;        static void Main(string[] args)        {            Thread thread1 = new Thread(SaleTicketThread1);            Thread thread2 = new Thread(SaleTicketThread2);            thread1.Start();            thread2.Start();            Thread.Sleep(4000);        }        private static void SaleTicketThread1()        {            while (true)            {                if (stickets>0)                {                    Console.WriteLine("线程一出票{0}:", stickets--);                }                else                {                    break;                }            }        }        private static void SaleTicketThread2()        {            while (true)            {                if (stickets > 0)                {                    Console.WriteLine("线程二出票{0}:", stickets--);                }                else                {                    break;                }            }        }    }}

因为两个线程访问了同一个静态变量stickets,线程出票的顺序发生了变化,将会引起数据出现错误.

为了避免这种情况的发生，保证同一时间类只有一个线程访问共享资源;

使用:线程同步: