很简单的Python实现的凯撒加密解密，是计算机基础课程中的一道作业。用队列实现。-Very simple Python implementation Caesar encryption and decryption is a basic computer course in a job. With queue implementation

对初学者快速认识Python有一定帮助。可以值得一看(It is helpful for beginners to get a quick understanding of Python. It can be worth seeing)