编写多线程应用程序的最重要问题就是线程之间的资源同步访问。因为多个线程共享资源时如果发生访问冲突通常会产生不正确的结果。本程序主要实现线程间的同步技术-The preparation of multi-threaded applications the most important problem is the thread synchronization between the resources to visit. Because the shared resource when multiple threads access violation if there is usually generate incorrect results. This procedure main inter-thread synchronization technology