使用VC++ 6.0编写的基于对话框的计算器，出科可以实现简单的四则运算外，还可以实现开方运算，代码编写简单，利于初学者学习-Written using VC++ 6.0 dialog-based calculator, course completion enables simple arithmetic, it can achieve root operation, to write simple code, which will help beginners learn