这个只能单独一个一的添加，怎么做一个批量添加
public function add()
{

$city_list = M("DealCity")->where('is_delete = 0')->findAll();
$city_list = D("DealCity")->toFormatTree($city_list,'name');
$this->assign("city_list",$city_list);

$this->assign("new_sort", M("Area")->max("sort")+1);
$this->display();
}

<tr>
<td class="item_title">城市添加:</td>

<td class="item_input"><input type="text" class="textbox require" name="name" /></td>
</tr>