code: protected function buildMenu()
      {
          $menu_logic = MenuLogic::instance();
          
          // 主菜单
          $main_menu = $menu_logic->getMainMenu($this->user_id);
          $this->assign('main_menu', $main_menu);
          
          // 侧边菜单
          $sider_menu = $menu_logic->getSiderMenu($this->user_id);
          $this->assign('sider_menu', $sider_menu);
      }
docs: 创建菜单