本程序为基于51系列单片机串口读写驱动程序，采用全模块化程序设计理念，移植非常方便，用哪个模块只需将相应 C文件和H文件拷贝即可调用相关函数。 采用中断接收 串口参数可方便在init_serial( void )中修改。-The procedures for 51 series microcontroller based on serial port, speaking, reading and writing, adopted the driver modularization p