简易的计算器程序。 　　对话框类型的程序；

 　　能够实现浮点数值的加减乘除运算；

 　　界面由一个编辑框和若干按钮组成，编辑框负责表达按钮输入及计算的结果，按钮负责输入数字、加减乘除以及等于等动作的输入；程序的核心功能由标准C++方式实现，并通过MFC框架代码调用其功能。

-Simple calculator program. The 　dialog box, type the program　　to achieve a floating point value, addition and subtraction multiplication and division　　interface by an edit box and button, edit box, is responsible for the expression of the button input and calculation results, the button is responsible for the input numbers, addition, subtraction, and equal to the input of the action　the core functionality of the program standard C++, and its function is called by the MFC framework code.