选择布局，然后将小部件拖放到对象检查器"窗格中的相应选定项上.如果您发现很难在实际表单上选择布局，也可以通过对象检查器"窗格选择它.

Select the layout, and then drop the widget onto the corresponding selected item in the Object Inspector pane. If you find it tricky to select the layout on the actual form, you can also select it via the Object Inspector pane.