如何使用QFrame

#include 
#include 
#include 
#include 
#include 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QWidget *win = new QWidget;

    QLabel *label = new QLabel("Box");
    QLabel *label1 = new QLabel("Panel");
    QLabel *label2 = new QLabel("Winpanel");
    QLabel *label3 = new QLabel("H line");
    QLabel *label4 = new QLabel("V line");
    QLabel *label5 = new QLabel("Styled Panel");

    label->setFrameStyle(QFrame::Box | QFrame::Raised);
    label->setLineWidth(2);
    label1->setFrameStyle(QFrame::Panel | QFrame::Raised);
    label1->setLineWidth(2);
    label2->setFrameStyle(QFrame::WinPanel | QFrame::Raised);
    label2->setLineWidth(2);
    label3->setFrameStyle(QFrame::HLine | QFrame::Raised);
    label3->setLineWidth(2);
    label4->setFrameStyle(QFrame::VLine | QFrame::Raised);
    label4->setLineWidth(2);
    label5->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
    label5->setLineWidth(2);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->addWidget(label);
    layout->addWidget(label1);
    layout->addWidget(label2);
    layout->addWidget(label3);
    layout->addWidget(label4);
    layout->addWidget(label5);
    win->setLayout(layout);
    win->showMaximized();
    return app.exec();
}

如下图所示：