说明：  这是一个电机转速控制程序,采用ｐｉｄ算法进行速度调节,可以实现电机的稳定调节,实现快速稳定的调节特点,转速范围是30到60转每分
(This is a motor speed control procedures, using pid algorithm speed adjustment, you can realize the electrical stability of regulation, to achieve rapid and stable regulation of the characteristics of speed range is 30-60 per minute to)