public function GroupList($d)
{
$d->page = intval($d->page);
$d->frmstudy = intval($d->frmstudy);
$list = $this->models->InstanceClass('GroupList');
$rows = RecordBookQuery::GroupList($this->db, $d);
while ($dd = $this->db->fetch_array($rows)) {
$list->Add($this->models->InstanceClass('GroupItem', $dd));
}
return $list;
}