FXG symbols are containers for graphical elements.
FXG符号是图形元素的容器。
Lastly, note that graphical elements such as rectangles, lines, and circles are not widgets!
最后,要注意图形元素(像长方形、直线、圆形)都不是部件!
Notice that several elements haven been added: table titles, salary column totalization, besides many graphical elements.
注意,除添加了许多图形元素之外,还添加了几个元素:表的标题、salary列的总和。
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