QT学习二：工具栏

void MainWindow::createToolBar(void)
{
QToolBar *toolBar = new QToolBar;
QToolButton *toolBtn = new QToolButton;
toolBtn->setText(tr("ToolBar"));
toolBar->addWidget(toolBtn);
this->addToolBar(toolBar);
}

void MainWindow::createToolBar2(void)
{
QToolBar *toolBar = new QToolBar;
QToolButton *toolBtn = new QToolButton;
toolBtn->setIcon(QIcon(":/prefix/Home.png"));
toolBtn->setText(tr("ToolBar"));
toolBtn->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
toolBar->addWidget(toolBtn);
toolBar->setAllowedAreas(Qt::TopToolBarArea | Qt::BottomToolBarArea);
this->addToolBar(toolBar);
}