th3.cs

操作系统方面关于线程的代码。包括一个公共变量的多线程减问题；临界资源不加锁的多线程程序；有加锁机制的多线程编程等。

using System;
using System.Threading;
namespace th3
{
	class ThTest3
	{
		static void Main(string[] args)
		{
			MyData num=new MyData();
			Thread t1=new Thread(new ThreadStart(num.Run));
			Thread t2=new Thread(new ThreadStart(num.Run));
			t1.Start();
			t2.Start();
			for (int i=0;i<10;i++)
			{
				Thread.Sleep(1000);
				num.TestEquals();
			}
		}
	}

	class MyData
	{
		private int x=0,y=0;
		public void Inc()
		{
			x++;y++;
		}

		public void TestEquals()
		{
			Console.WriteLine (x+","+y+":"+(x==y));
		}

		public void Run()
		{
			while(true)
				Inc();
		}
	}
}