单片机c51的按键0~f的代码答:include <reg52.h> include <intrins.h> define uchar unsigned char define uint unsigned int uchar key;unsigned char code disp_code[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};unsigned char code key_code[]={ 0xee,0xed,...