【摘要】 介绍了多进程模式下程序的编写原则和要求，说明了进程间数据通信的简便方法，详细地叙述了创建共享内存的步骤和释放共享内存的方法，井给出了创建共享内存的完整程序。更多还原

【Abstract】 This paper introduces the principles and requirements of programming for multi-process projects as well as the simple method of data communication between processes. Besides,this paper describes in detail the steps in creating and relieving the shared memory.更多还原