上位机程序，接收STM32发送的GPS数据并按照数据存储格式进行解算，解算后的结果保存在txt文件中，供后续处理。-PC program, to receive the GPS data and transmit STM32 data storage format in accordance with solver, solver the results stored in the txt file for subsequent processing.

接收处理gps数据，大家看着参考，用到很多库函数(Receive processing GPS data, you look at the reference, use a lot of library functions)