文件名称:Interact-system-for-drawing
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很好的二维绘图系统能绘制各种二维图形并能填充，改变线型颜色，用菜单和鼠标的操作-Good two-dimensional graphics rendering system can be filled with a variety of two-dimensional graphics and change the line color, with menus and mouse operation
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Simple two-dimensional mapping system to have drawn a lot of two-dimensional system in interactive mode.txt