This article introduced under Windows platform serial communication realization mechanism, discussed under different condition to design the programming method and the communication ways to the serial communication based on VC 6.0.

• 文章介绍了在Windows平台下串行通信的实现机制；讨论了根据不同的条件用VC6.；0设计串行通信程序的编程方法及通信方式。