自己写的一个简单的计算器程序。便于初学者学习C++类的设计，vc基于对话框控件设计等内容-himself wrote a simple computer program. Beginners learning to facilitate the design category C, vc-based dialog design content controls

vc++基于对话框的程序将编辑框的内容实时显示例子。-vc++ dialog-based program the contents of the edit box of real-time display example.