中文说明：自己编写的一些代码。分享给大家，也希望大家也都分享一些代码提供交流。 本人初学MATLAB，可能有些错误，希望见谅，也希望能提出看法交流一下。 大家可以踊跃交流，谢谢。
English Description：
I have written some code. Share with everyone and hope we all share some of the code provides. I am novice MATLAB, there may be some errors, I hope will forgive me, I hope to communicate their views. We can actively Exchange, thank you.