矢量绘制用于完成各种任务，比如填充背景颜色、边框颜色和渐变等。

The vector drawing is employed for a variety of tasks, such as filling the background color, border color, gradients, fills, and strokes.

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组(group)是在窗口小部件周围绘制一个边框的组合。

The group is a composite that draws a border around its widgets.

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gnuplot按以下次序绘制框的边框：顶、底、左和右，值分别为1、2、4、8。

Gnuplot draws the borders of the boxes in this order: top, bottom, left, and right, with their respective values: 1, 2, 4, 8.

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