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QMenu *layoutMenu = menuBar()->addMenu(tr("Layout"));
其中 QMenuBar * QMainWindow::menuBar () const
QAction *tile = new QAction(tr("tile"),this);
1 #include <QApplication>
2 #include <QLabel>
3 int main(int argc, char *argv[])
4 {
5 QApplication app(argc, argv);
6 QLabel *label = new QLabel("Hello Qt!");
7 label->show();
8 return app.exec();
9 }
QAction *tile = new QAction(tr("tile"),this);
QLineEdit *nameEd = new QLineEdit(this);
QLabel *nameLb = new QLabel("&Name:", this);
nameLb->setBuddy(nameEd);
QLineEdit *phoneEd = new QLineEdit(this);
QLabel *phoneLb = new QLabel("&Phone:", this);
phoneLb->setBuddy(phoneEd);