请问addlayout,addchildlayout的区别

请教addlayout,addchildlayout的区别
不好意思啊，谁能告诉我addlayou, addchildlayout的区别么？谢谢。

------解决方案--------------------
看Manual，它的信息量应该足够了：

void QLayout::addChildLayout ( QLayout * l ) [protected]

This function is called from addLayout() or insertLayout() functions in subclasses to add layout l as a sub-layout.

The only scenario in which you need to call it directly is if you implement a custom layout that supports nested layouts.
------解决方案--------------------

探讨

看Manual，它的信息量应该足够了：

void QLayout::addChildLayout ( QLayout * l ) [protected]

This function is called from addLayout() or insertLayout() functions in subclasses to add layout l as a sub-layout.
……