本系统基于DMS电信服务需求为主要研究背景，采用C/S架构，和C++程序设计，系统服务器端采用Socket通信，和Unix多线程程序设计，完成并实现了以Unix作为后台服务器的电信服务管理系统。-The system based on the demand for telecommunications services in DMS as the main research background, the use of C/S architecture, and C++ programming,

The changes to UNIX programming that have taken place since 1985 are extensive to say the least. The first edition of Advanced UNIX Programming is still used and considered to be a must have book on any UNIX programmer s shelf. With this new edition