自己编写的一个基于MFC的计算器，包括常用的运算，加减乘除和开方，以及系统的实施的时间显示，本人亲测，能正常在win7下运行，XP应该没问题-An MFC-based calculators, including the implementation of common arithmetic, addition, subtraction and prescribing, as well as the system' s time to write your own show, I pro-

界面卡的demo测试，和panel圆角实现，解决C#背景图片加载闪卡的问题-Demo test interface cards, and panel rounded realize solve C# background image loading flash card problem