前段给别人做的一个数列分析方面的小工具，可以分析一个代码文件的字母重复率等。结果进Excel，有一个Excel代码代码操作类，帮助初学者学习Excel文件的操作。-Front-end to someone else to do the analysis of a series of small tools that can analyze a file of letters to repeat the code rate. The results into Excel, there is an