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QTreeWidget *treeWidget = new QTreeWidget;
treeWidget->setColumnCount(1);
treeWidget->setColumnWidth(0,100);
// treeWidget->setRootIsDecorated(false);
treeWidget->setSelectionMode(QAbstractItemView::ExtendedSelection);
treeWidget->setHeaderLabel(tr("医院列表"));
QTreeWidgetItem *imageItem1 = new QTreeWidgetItem(treeWidget,QStringList(QString("北京")));
QTreeWidgetItem *imageItem2_1 = new QTreeWidgetItem(imageItem1,QStringList(QString("Band1"))); //子节点1
QTreeWidgetItem *imageItem2_2 = new QTreeWidgetItem(imageItem1,QStringList(QString("Band2"))); //子节点2
imageItem1->addChild(imageItem2_1); //添加子节点
imageItem1->addChild(imageItem2_2);
// treeWidget->setColumnWidth(0,100);
treeWidget->expandAll(); //结点全部展开
QHBoxLayout *btnLayout=new QHBoxLayout;
// btnLayout->addStretch(1);
btnLayout->addWidget(hos_manage);
btnLayout->addWidget(search);
btnLayout->addWidget(gather);
btnLayout->addStretch(1);
btnLayout->addWidget(quit);
// btnLayout->addStretch(1);
QHBoxLayout *btnLayout1=new QHBoxLayout;
btnLayout1->addWidget(treeWidget);
btnLayout1->addWidget(tabWidget);
QVBoxLayout *mainLayout=new QVBoxLayout;
mainLayout->addLayout(btnLayout);
mainLayout->addLayout(btnLayout1);
setLayout(mainLayout);