using System.Collections.Generic;using System.Threading;namespace FYSTest{    public partial class MainWindow     {        List<int> list = new List<int>();        private ReaderWriterLock _rwlock = new ReaderWriterLock();        public MainWindow()        {            //InitializeComponent();            Thread ThRead = new Thread(new ThreadStart(Read));            ThRead.IsBackground = true;            Thread ThRead2 = new Thread(new ThreadStart(Read));            ThRead2.IsBackground = true;            Thread ThWrite = new Thread(new ThreadStart(Write));            ThWrite.IsBackground = true;            ThRead.Start();            ThRead2.Start();            ThWrite.Start();        }        private void Read()        {            while (true)            {                //使用一个 System.Int32 超时值获取读线程锁。                _rwlock.AcquireReaderLock(100);                try                {                    if (list.Count > 0)                    {                        int result = list[list.Count - 1];                    }                }                finally                {                    //减少锁计数,释放锁                    _rwlock.ReleaseReaderLock();                }            }        }        int WriteCount = 0;//写次数        private void Write()        {            while (true)            {                //使用一个 System.Int32 超时值获取写线程锁。                _rwlock.AcquireWriterLock(100);                try                {                    list.Add(WriteCount++);                }                finally                {                    //减少写线程锁上的锁计数，释放写锁                    _rwlock.ReleaseWriterLock();                }            }        }    }}