https://blog.csdn.net/sinat_33704704/article/details/86711838
https://blog.csdn.net/lanqibaoer/article/details/23251967
https://www.cnblogs.com/tancky/p/6409823.html
算法加密
原文：https://www.cnblogs.com/mjtabu/p/13236282.html
