一个Verilog写的简易计算器。能进行二进制加减乘除运算，操作数通过按键输入并用数码管显示。当按下运算符号键后，计算器进行两个数的运算，数码管将结果显示出来。-A simple calculator written in Verilog. Binary addition and subtraction to multiplication and division, operating a few keystrokes and use digital display. When the pres