在Windows2000环境下，创建一个控制台进程，此进程包含n个线程。用这n个线程来表示n个读者或写者。每个线程按相应测试数据文件（后面介绍）的要求进行读写操作。用信号量机制分别实现读者优先和写者优先问题。-In Windows2000 environment, create a console process, this process contains n threads. Use this thread to express n months n months from readers or write. Each thread in accordance with the corresponding test data files (described later) to read and write operation requirements. Semaphore mechanism with the respective priorities and write readers realize those priorities.