一个利用VS2008编写的简单计算器程序，可以计算一些日常生活中的数据计算。但由于技术的不精，有些代码功能还没有充分实现，请各位多多指教-One advantage of a simple calculator program written in VS2008, you can calculate some data in the calculation of daily life. However, as technology is not refined, some of the code