SharedResourceLeadToDataError

using System;

using System.Collections.Generic;

using System.Text;

using System.Threading;

namespace SharedResourceLeadToDataError

{

    class Program

    {

        static void Main(string[] args)

        {

            Thread[] ths = new Thread[4];

            for (int i = 0; i < 4; i++)

            {

                ths[i] = new Thread(increaseCount);

                ths[i].Start();

            }

            System.Console.ReadKey();

        }

        static void increaseCount()

        {

            Random ran = new Random();

            Thread.Sleep(ran.Next(100, 5000));

            int beginNum = SharedResource.Count;

            System.Console.WriteLine("线程 {0} 读到的起始值为 {1}  ", Thread.CurrentThread.ManagedThreadId, beginNum);

            for (int i = 0; i < 10000; i++)

            {

                beginNum++;

            }

            SharedResource.Count = beginNum;

            System.Console.WriteLine("线程 {0} 结束，SharedResource.Count={1}", Thread.CurrentThread.ManagedThreadId, SharedResource.Count);

        }

    }

    class SharedResource

    {

        public static int Count = 0;

    }

}