画图工具，能够实现画图工具、画直线、画椭圆、画多边形等功能，并且在绘图的过程中能够修改该画笔的大小以及颜色。该画图程序还需具有橡皮擦功能。 -Drawing tools, drawing tool, draw a straight line, painted oval, and polygon drawing, and in the process of drawing can modify the size and color of the brush. The Paint program n