刚写的verilog 程序，控制直流电机正反转，具有严格的按键消抖函数，采用脉冲边沿检测法，防止误触发！-Just write verilog program to control the DC motor reversing, with strict key debounce function, pulse edge detection method, to prevent false triggering! ! ! Beginner EDA, if insufficient, please