4×4矩阵键盘C语言程序参考 #define int8 unsigned int#define int16 unsigned char#define int32 unsigned long#define KEY_PORT PORTD#define KEY_PIN PIND#define ROW1 (1<<0)#define ROW2 (1<<1)#define ROW3 (1<<2)#define ROW4 (1<<3)... 2023-06-13 4×4矩阵键盘C语言程序参考文章基础课C语言基础
