$modelid = 1;
if(!($result = S('modelid'.$modelid))){
$where['modelid'] = $modelid;
$resultarr = M("Category")->where($where)->select();
$result =array();
foreach($resultarr as $k=>$v){
$result[$v['catid']] =$v;
}
S('modelid'.$modelid,$result);
}
$result = zc_children_more($result);