说明：  初学VC++多线程必不可少的资料，内容非常详细。讲到了临界区（CCriticalSection） 事件（CEvent）互斥量（CMutex）信号量（CSemaphore）
(Beginner VC++ Multi-threaded essential information, very detailed. Referred to the critical region (CCriticalSection) events (CEvent) mutex volume (CMutex) Semaphore (CSemaphore))