QTreeView 和QTreeWidget

1. QTreeView
   1. 设置表头隐藏

QStandardItemModel *model = new QStandardItemModel(this);

//设置表头隐藏

//ui->treeView->setHeaderHidden(true);

//设置表头

model->setHorizontalHeaderLabels(QStringList()<<"姓名"<<"性别"<<"年龄");

//设置mode