绘图软件的开发，顾名思义，就是要开发一个能进行绘图的程序，为了能获取鼠标单击点的位置信息，需要用鼠标事件监听程序MouseListener和MouseMotionListener来获取鼠标事件，为此说明一个类来说明和实现这两个接口。还要调用调色板。-Drawing software development, by definition, is to develop a program capable of drawing, in order to obtain the location information of the mouse click point, you need to use the mouse events and MouseMotionListener MouseListener listener to get the mouse events, this descr iption of a class descr iption and implement these two interfaces. Also called palette.