public function judeg($id)

{

   $rs = Db::name('finance_class') -> field('parent_code') -> where('id',$id) -> select();

   $i = 1;

   foreach($rs as $k => $v){

   　　if($v['parent_code'] <> 0){

   　　　　$i += $this -> judeg($v['parent_code']);

      }

   }

   return $i;

}

 public function cid($id,$pid)

 {

    $w['parent_code'] = $id;

    $rs = Db::name('finance_class')

       -> field('id,code,name,parent_code')

       -> where($w)

       -> order('code asc')

       -> select();

    $str = '';

    foreach ($rs as $k => $v) {

        $name = $v['name'];

        $_id = $v['id'];

        $cutOff = '';

        for($i = 0; $i < $this -> judeg($_id); $i++){

        　　$cutOff.='-';

        }

        if($_id == $pid){

        　　$str.='<p>他的id='.$_id.'====他的级别'.$cutOff.$name.'</p>';

        }else{

        　　$str.='<p>他的id='.$_id.'====他的级别'.$cutOff.$name.'</p>';

        }

        $str.=$this->cid($_id,$pid);

    }

    return $str;

37}

public function finance_c()

{

   $w['type'] = '资产类';

   $w['parent_code'] = 0;

   $rs = Db::name('finance_class')

     　　-> field('id,code,name,parent_code')

     　　-> where($w)

        -> select();

   $str = '';

   foreach ($rs as $k => $v){

   　　$str.= '<p>一级name:'.$v['name'].'</p>';

   　　$str.=    $this -> cid($v['id'],0);

   }

   echo $str;

}

public function getVoucherClass()

{

    $lists = Db::name('finance_class')->select();

    $lists = $this->getTree($lists);

    foreach($lists as $value){

    　　echo str_repeat('--', $value['level']), $value['name'].'<br />';

    }

10}

/**

* 递归实现无限极分类

* @param $array 分类数据

* @param $pid 父ID

* @param $level

* @return $list

*/

function getTree($array, $pid =0, $level = 0){

   static $list = [];

   foreach ($array as $key => $value){

   　　if ($value['parent_code'] == $pid){

      　 $value['level'] = $level;

         $list[] = $value;

         unset($array[$key]);

         $this->getTree($array, $value['id'],$level+1);

      }

   }

   return $list;

30}

public function index()

   {

      $lists = \think\Db::table('ozyx_finance_class')->select();

      $lists = $this->getTree($lists,0);

      foreach ($lists as $k => $v) {

              $lists_one[$v['type']][]=$v;

      }

      // halt($lists_one);

      $this->assign('lists', $lists_one);

      return view();

   }

   /**

   * 无限极分类

   */

   function getTree($data, $pid)

   {

       $tree = '';

       foreach($data as $k => $v)

       {

         if($v['parent_code'] == $pid)

         {       

              $v['parent_code'] = $this->getTree($data, $v['id']);

              $tree[] = $v;

                 unset($data[$k]);

         }

       }

       return $tree;

   }