layout相关SKILL查看sklayoutref.pdf
leAttachFig( d_figId1
[ d_figId2 ]
)
=> t | nil DescriptionAttaches d_figId1 to d_figId2 by making d_figId1 a child of d_figId2. If d_figId1 is already attached to another object, it is detached from it. If d_figId2 is notspecified, d_figId1 is detached from any object it is currently attached to without attachingit to anything else.