线程停止的奇怪问题

Question

       １. －－－－－－－－－－－－－－－－－－－－－－－－－－－ 　　 /// <summary>        /// 用来判断是否停止线程的变量        /// </summary>        private  volatile bool m_stopThread=false;        private Thread m_threadStartSendMusic;         /// <summary>        /// 开始发送        /// </summary>        public void SendMusicInThread(int startcount,int sendcount,string sbip)        {            //若有在发送数据　停止发送            m_stopThread = true;            Thread.Sleep(106);                                 m_StartCount = startcount;            m_SendCount = sendcount;            m_sbip = sbip;            //新开一个线程发送数据　            m_threadStartSendMusic = new Thread(SendMusic);            m_threadStartSendMusic.IsBackground = true;            m_threadStartSendMusic.Start();        }         /// <summary>        /// 发送音乐        /// </summary>        private  void SendMusic()        {            m_stopThread = false;                      int endCount = m_StartCount + m_SendCount;            for (int i = m_StartCount; i < endCount; i++)            {                if (m_stopThread)                {                    break;                }              //do something              }       } ---------------------------------------------------------------------------------------------- ２.         /// <summary>        /// 用来判断是否停止线程的变量        /// </summary>        private  volatile bool m_stopThread=false;        private Thread m_threadStartSendMusic;         /// <summary>        /// 开始发送        /// </summary>        public void SendMusicInThread(int startcount,int sendcount,string sbip)        {            //若有在发送数据　停止发送            m_stopThread = true;            Thread.Sleep(106);            m_stopThread = false;                       m_StartCount = startcount;            m_SendCount = sendcount;            m_sbip = sbip;            //新开一个线程发送数据　            m_threadStartSendMusic = new Thread(SendMusic);            m_threadStartSendMusic.IsBackground = true;            m_threadStartSendMusic.Start();        }         /// <summary>        /// 发送音乐        /// </summary>        private  void SendMusic()        {            int endCount = m_StartCount + m_SendCount;            for (int i = m_StartCount; i < endCount; i++)            {                if (m_stopThread)                {                    break;                }              //do something              }       } -------------------------------------------------------------------------------------------------   当我多次执行SendMusicInThread（。。。）方法时　为何1不能停止当前线程　然后再开线程m_threadStartSendMusic　　 2却能把上一个线程停掉　然后再开一个线程　 就 m_stopThread　放的位置不同 而m_stopThread　我设置的是volatile　应该每次执行去判断m_stopThread的时候都是最新的值才对　为什么呢    

Answer 1

你是如何调用 SendMusicInThread 这个函数的？

Thread.Sleep() 时间长点，比如 5000。

Answer 2

start方法后，线程不会马上被执行，而是等待被执行。我猜想哦，这两段代码在不同配置电脑上，会有不同结果。