单片机的串口操作，现在很火的stm32，但是是stm32f107的，网上现在基于寄存器操作的比较少，库的话开始会比较难看懂-Microcontroller serial port operation, fire stm32 but is stm32f107, online register-based operation is relatively small, the library, then it would be more difficult to understand