用VC编写的绘图软件,实现基本的绘制直线,点,圆和矩形,实现基本的图象操作,旋转,缩放,平移,,实现投影的绘制,投影坐标的绘制,投影直线,点的绘制,以类的方式提供,使用GDI编写的2D程序-VC prepared by the graphics software, the basic drawing straight lines, points, round and rectangular, to achieve the basic operation of images, rotate, zo