1.掌握进程的概念，明确进程的含义 2.认识并了解并发执行的实质 3.掌握进程另外的创建方法 4.熟悉进程的睡眠、同步、撤消等进程控制方法 5.进一步认识并发执行的实质 6.分析进程竞争资源的现象，学习解决进程互斥的方法 -1. To grasp the concept of the process, clearly the meaning of the process 2. Know and understand the essence of concurrent e

模拟文件管理的工作过程,从而对各种文件操作命令的实质内容和执行过程有比较深-Simulated the process of file management, so as to substance of all kinds of file operations commands have a deep and execution process