根据bresenham算法的精髓，逐点绘制椭圆-Bresenham algorithm in accordance with the essence of drawing ellipse point by point

JAVA开发的绘图小程序，能实现简单的绘图功能。能用鼠标拖动画出椭圆，正圆，直线，正方形，长方形，弧线，还能设置颜色，具有擦出、清除、保存等功能。-JAVA applet drawing development, to achieve the simple graphics. Can drag the mouse to draw an ellipse, perfect circle, line, square, rectangle, arc, but also set the color, ha

利用Bresenham画圆法、中点画圆法以及椭圆生成算法在java界面绘制(Using the Bresenham circle method, the middle point drawing circle method and the ellipse generation algorithm to draw the java interface)