QT——QTreeWidget树形控件，点击节点，获取给节点设定的编号

connect(ui.treewidget, SIGNAL(itemClicked(QTreeWidgetItem * , int )), this,SLOT(wc_fun_treewidgetTest(QTreeWidgetItem * , int )));

void Mainwidget::wc_fun_treewidgetTest(QTreeWidgetItem* item, int column)
{
    QString _datt = item->data(0, Qt::UserRole).toString();
    QStringList _data = _datt.split("-");
    qDebug() << QString::fromLocal8Bit("当前点击的项的索引是：") << _data[0] << endl;
}