本程序是在VERILOG语言的基础上编写键盘程序，理论上键盘是很容易实现的，但因为要考虑消抖的因素，所以，会复杂一些。-This program is prepared based on the VERILOG language keyboard program, in theory, the keyboard is very easy to implement, but because the factors to consider debounce, therefore, be more complex.