qt 内置图标使用

QToolButton *button = new QToolButton(this);
button->resize(100,30);
button->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
QStyle* style = QApplication::style();
QIcon icon = style->standardIcon(QStyle::SP_DriveCDIcon);
button->setIcon(icon);
button->setText(QString("123"));
button->move(100,100);