说明：  GPS 串口编程应用。文章介绍了GPS的数据输出格式，数据校验程序以及GPS与计算机进行串口通信的一半步骤，为GPS的编程应用提供参考
(GPS serial port programming applications. This paper introduces the GPS data output format, data validation procedures, and GPS serial communication with the computer half the steps of programming applications for the GPS reference)