共９个程序，通过实验熟悉如何使用MATELAB来编程，该程序可以实现最小拍有纹波、最小拍无纹波、数字PID和大林算法-a total of nine procedures, experimental MATELAB familiar with how to use programming, The procedure can be achieved with minimum ripple film, the smallest ripple-free digital, digital PID al