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我可以为绘制事件中面板上绘制的矩形分配整数值吗?
我有一个循环遍历的列表...我想为每个矩形分配一个整数值
稍后当用户单击其中一个矩形时,该整数值将用于从 List 中删除其中一个点
然后面板将被刷新......因此,删除该矩形