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@@ -21,6 +21,24 @@ class IndexController extends HomeBaseController
       $data = Db::name('slide_item') -> where('slide_id',3) -> find();
       $this -> assign('logo',$data);
 
+      $shuju = Db::name('nav_menu') -> select();
+      $data2 = $this -> daohang($shuju);
+      dump($data2);die;
+
+    }
+
+    public function daohang($data,$pid=0){
+
+      static $arr = [];
+      foreach ($data as $key => $value) {
+         if($value['parent_id'] == $pid){
+            $arr[] = $value;
+            $this -> daohang($data,$value['id']);
+         }
+      }
+      return $arr;
+
+
     }
 
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