using System;using System.Threading;namespace ProcessTest{    class Program    {        static int theResource = 0;        static ReaderWriterLock rwl = new ReaderWriterLock();        static void Main(string[] args)        {            //分别创建2个读操作线程，2个写操作线程，并启动            Thread tr0 = new Thread(new ThreadStart(Read));            Thread tr1 = new Thread(new ThreadStart(Read));            Thread tr2 = new Thread(new ThreadStart(Write));            Thread tr3 = new Thread(new ThreadStart(Write));            tr0.Start();            tr1.Start();            tr2.Start();            tr3.Start();            ////等待线程执行完毕            //tr0.Join();            //tr1.Join();            //tr2.Join();            //tr3.Join();            System.Console.ReadKey();        }        //读数据        static void Read()        {            for (int i = 0; i < 3; i++)            {                try                {                    //申请读操作锁，如果在1000ms内未获取读操作锁，则放弃                    rwl.AcquireReaderLock(1000);                    Console.WriteLine("开始读取数据，theResource = {0}", theResource);                    Thread.Sleep(10);                    Console.WriteLine("读取数据结束，theResource = {0}", theResource);                    //释放读操作锁                    rwl.ReleaseReaderLock();                }                catch (ApplicationException)                {                    Console.WriteLine("读数据失败");                }            }        }        //写数据        static void Write()        {            for (int i = 0; i < 3; i++)            {                try                {                    //申请写操作锁，如果在1000ms内未获取写操作锁，则放弃                    rwl.AcquireWriterLock(1000);                    Console.WriteLine("开始写数据，theResource = {0}", theResource);                    //将theResource加1                    theResource++;                    Thread.Sleep(100);                    Console.WriteLine("写数据结束，theResource = {0}", theResource);                    //释放写操作锁                    rwl.ReleaseWriterLock();                }                catch (ApplicationException)                {                    Console.WriteLine("写数据失败");                }            }        }    }}