中文说明：基于matlab的光学4f系统菲涅尔波带片的实现。信息光学课的作业，内含一个matlab的程序和程序运行结果。我自己写的程序，运行没有问题。
English Description：
The realization of Fresnel zone plate of optical 4f system based on MATLAB. The homework of information optics course contains a matlab program and the program running results. The program I wrote by myself runs well.