本程序主要是关于直流电动机转速闭环控制的建模与仿真-This procedure is mainly about the closed-loop control of DC motor speed Modeling and Simulation

pid控制直流电机转速，依靠转速反馈的闭环控制，并且附加显示屏功能-Pid control dc motor speed, depending on the speed feedback closed loop control, and additional display function