我自己用过的代码
........
QFrame *vLine=new QFrame;
vLine->setFrameShadow(QFrame::Raised);
vLine->setFrameShape(QFrame::VLine);
........
QHBoxLayout *mainLayout=new QHBoxLayout;
mainLayout->addLayout(btnLayout);
mainLayout->addWidget(vLine);
mainLayout->addWidget(sWidget);