qt启动报错：last < rowCount(parent)

zhaoyao

qt启动报错：ASSERT: "last < rowCount(parent)" in file itemmodels\qabstractitemmodel.cpp, line 2815
void NavModel::refreshList(){    beginRemoveRows(QModelIndex(),0,listNode.count());    listNode.clear();    endRemoveRows();
修改为：void NavModel::refreshList(){    beginRemoveRows(QModelIndex(),0,listNode.count()-1);    listNode.clear();    endRemoveRows();