计算机图形学用Bresenham算法画直线，计算出运行时间。-Computer graphics draw a straight line using Bresenham algorithm to calculate the running time.

计算机图形学用中点Bresenham算法，计算出运行时间。-Computer graphics with the midpoint of the Bresenham algorithm, the calculated run time.

通过程序实现Bresenham画线算法，中点画圆算法以及中点画椭圆的算法-Achieved through the process Bresenham line algorithm, the midpoint circle algorithm, and the dotted ellipse algorithm