使用vc++6.0编写的2的图形学编程代码，模拟小球运动，可以键盘控制开始结束-Using vc + + 6.0 write the graphics programming code 2, simulation ball movement, can the keyboard control began to end

用链表实现的小CAD编程，图形界面，支持直线、矩形、椭圆、文字，放缩，鼠标移动，键盘移动，删除等-With the list of small CAD programming, graphics interface, support for a straight line, rectangle, oval, text, zoom, mouse movement, keyboard mobile, delete, etc..