在写论文的时候用到很多批量计算，这是一个简易的计算器。把excel内的数据按照列paste到txt文件。修改源码就可以计算数据了。简单但实用，并且是初学者学习如何处理文本文件的一个实例。问题email到fly-lion@126.com-writing papers when used in many mass, which is a simple calculator. Put excel in accordance with the data shown paste to txt document. Can modify the source codes to calculate the data. Simple but practical, and is a beginner to learn how to cope with a text file of examples. Email questions to fly-lion@126.com