用单片机实现一个简易电子琴，8个按键代表8个音符，用汇编或C语言。51程序就不用了

#include<AT89X51.H>unsigned char table[]={0x3f,0x60,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};unsigned char temp;unsigned char key;unsigned char i,j;unsigned char STH0;unsigned char STL0;unsigned int code tab[]={64021,6