通过windows程序设计编写的一个简易MFC计算器，具有两个可以分别输入数字的编辑框，四个“+”、 “-”、 “×”、“÷”操作键和一个结果的输出框，外加一个“退出”按钮。-This is a simple calculator using windows programming, which includes two edit boxes where you can enter numbers, four operating keys "+", "-", "×" and "÷", plus