qt layout销毁时会销毁其中的组件吗
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不会，貌似所有的remove函数都是只是移除，并不会销毁
void QStackedWidget::removeWidget ( QWidget * widget )
Removes widget from the QStackedWidget. i.e., widget is not deleted but simply removed from the stacked layout, causing it to be hidden.
Note: Ownership of widget reverts to the application.
void QStackedWidget::removeWidget ( QWidget * widget )
Removes widget from the QStackedWidget. i.e., widget is not deleted but simply removed from the stacked layout, causing it to be hidden.
Note: Ownership of widget reverts to the application.
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