鼠标操作，如果上错了颜色可以点游戏中的橡皮来涂掉，完成作品点音符按钮画面就能动了。
Mouse operation, if on the wrong color can point to the rubber game to obliterate. Op point notes screen buttons can be moved.
图形界面各个按钮如“橡皮”、“铅笔”、“A”、“直线”等的实现。
The graphical interface includes the buttons such as "rubber", "pencil", "a", "straight line", etc.
左，右工具-左，右鼠标按钮分配一个不同的工具。例如：在左侧的铅笔，橡皮擦的权利。
Left and right Tools - Assign a different tool to the left and right mouse button. For example: pencil on the left; eraser on the right.
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