1） 直线的生成内容：用Bresenham算法画直线要求： 将象素网格表现出来，建立网格坐标系 用橡皮筋的形式输入参数 鼠标移动时，显示鼠标当前位置򖑼 显示判别式的计算过程和下一点的选择策略 记录生成点的坐标，建议用表的形式 图形生成过程可以重复进行2）圆弧的生成内容：用Bresenham算法画圆 要求：᠊

-1) line generated content: draw a straight line using the Bresenham algorithm requirements: 　manifested establish 　grid coordinate system with a rubber band in the form of input parameters 　mouse to move the pixel grid, the current mouse position display 򖑼　discriminant calculation process and the selection of the next point strategy 　record generating point coordinates, it is recommended the table form 　graphics generation process may be repeated 2) of the arc-generated content: Bresenham algorithm drawcircle requirements: ᠊