<?php
    namespace  app\admin\controller;
    use cmf\controller\AdminBaseController;
    use think\Db;
    class Top10Controller extends AdminBaseController{
        public function update(){
            //所有的一级分类
            $yiji = Db::name('category')->where('parent_id',0)->order('list_order')->select();
            $erji = array();
            foreach($yiji as $k=>$v){
                $son = Db::name('category')->where('parent_id',$v['id'])->order('list_order')->select();
            }
        }
    }
?>