用Proteus仿真实现４Ｘ４行列式键盘的按键管理程序。 用Keil C51编程实现上述功能 用Keil与Proteus联调 -Proteus simulation is used to implement 4 x4 determinant keyboard key management program. Use Keil C51 programming to achieve the above functions Use with Proteus Keil alignment