How to scroll QPlainTextEdit to top?

I would like to automatically scroll to the top in a QPlainTextEdit widget after put开发者_如何学运维 in some text. How can I realize that?

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myTextEdit -> moveCursor (QTextCursor::Start) ;
myTextEdit -> ensureCursorVisible() ;

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As QTextEdit inherits from QAbstractScrollArea, you can move its scrollbars:

QScrollBar *vScrollBar = yourTextEdit->verticalScrollBar();
vScrollBar->triggerAction(QScrollBar::SliderToMinimum);