说明：  此文件内容为基于ARM微处理器STM32F103xx固件函数库的使用说明，包括固件库中所有的函数列表和函数参数的具体含义，及其使用方法，对于初学者有很大的帮助。
(The contents of this file ARM-based microprocessor STM32F103xx firmware library of instructions, including the firmware library Suoyou the function list and the function parameters of the specific meaning, and the operation, is very helpful for beginners.)