单片机4x4按键中断扫描法中的键盘编码的问题答:define KeyPad P0 code uchar key_tab[17]= {0xed,0x7e,0x7d,0x7b,0xbe,0xbd,0xbb,0xde,0xdd,0xdb,0x77,0xb7,0xee,0xd7,0xeb,0xe7,0XFF};code uchar key_show[]= {1,2,3,0x0a,4,5,6,0x0b,7,8,9,0x0e,0x0c,0,0x0d,0x0f,0xff};uchar Keyscan(){ uchar i=0x...