用vc编写的简单的画图程序，实现画直线，矩形和椭圆-A simple drawing program, the realization of drawing a straight line, rectangle and oval

矩形叠加计算程序VC++版，可以操作矩形与点加减、矩形与矩形加减，计算出的结果用两个矩形来表示 ，有重叠、交叉、相离等几种情况-Rectangle superimposed computer program VC++ version can operate with the point of addition and subtraction rectangle, rectangle with the rectangle and subtraction, the results calculate

使用c++语言在vc环境下编写的可画出矩形、箭头、菱形和圆形的小程序。-A programm of drawing a rectangle, an arrow, a diamond and a circular using c++ language in vc environment.