Whiteboard software system can create and save new documents, edit colors, painting the polygon and star-shaped, oval, straight line and so on.
电子白板软件系统主要实现文件的新建，保存，颜色的编辑，画多边形，星形，椭圆，直线等。
Whiteboard software system can create and save new documents, edit colors, painting the polygon and star-shaped, oval, straight line and so on.
电子白板软件系统主要实现文件的新建，保存，颜色的编辑，画多边形，星形，椭圆，直线等。
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