计算机图形学的程序,可以实现画直线,DDA直线以及中点圆,-Computer graphics program, you can draw a straight line, DDA straight and midpoint circle,

内含直线生成的dda,中点画线算法及Bresenham算法界面美观方便实用-Contains linear generated dda, dotted line algorithm and Bresenham algorithm interface in beautiful and convenient and practical