说明：  对迭代学习的初学提供一个很好的仿真例子，这个程序给出了迭代学习控制的仿真程序，其他迭代学习的仿真都可以此来拓展
(A good simulation example is provided for the beginners of iterative learning. This program gives a simulation program for iterative learning control. Other iterative learning simulations can be extended.)