51单片机演奏国歌答:include<REG51.H> include <intrins.h> unsigned int dTime[]={ 0XFB04,0XFB90,0XFC0C,0XFC44,0XFCAC,0XFD09,0XFD34,0XFD82,0XFDC8,0XFE06,0XFE22,0XFE56,0XFE85,0XFE9A,0XFEC1};unsigned char happy[]={0X82,0X01,0X81,0X94,0X84,0X0B4,0X0A4,0X04,0X82,0X01,0X81,...