本文介绍了基于客户／服务器模式的网络通讯研究以及在ｕｎｉｘ服务器、ｄｏｓ客户环境下的具体实现方法。采用网络收发统一管理、共享内存用于进程间通讯等技术，使网络通讯系统结构清晰灵活、快速可靠。本文所介绍的方法已得到成功地应用，所采用的方法和技术也可用于运行ｕｎｉｘ或ｗｉｎｄｏｗｓ操作系统的客户／服务器模式计算机系统中。 This article describes the client / server model based on the study of network communications and unix server, dos client environment specific implementation. Adopt the network to receive and dispatch the unified management, the share memory is used in the inter-process communication technology, make the network communication system structure clear, flexible, fast and reliable. The method described in this article has been successfully applied, and the methods and techniques used can also be used in client / server-based computer systems running unix or windows operating systems.