【摘要】 串行通信是一种应用非常广泛的通信方式，在计算机应用中极其重要。但要实现可靠的串行通信， 特别是后台通信，又非常困难。本文针对ＤＯＳ和Ｗｉｎｄｏｗｓ两种平台，给出了后台通信程序的设计 技巧和调试方法更多还原

【Abstract】 Serial communication is one kind of communication mode used extensively in computer application and is very important. But it is quite difficult to bring out reliable communication, especially to communication on background. The design and debugging method of communication program on backstage are given in this paper.更多还原