public function deleteMenu()
 {
     if (!IS_POST) {
         _404('页面不存在', U('index'));
     }
     import('@.WechatMenu.MenuDbControl');
     $menuControl = new MenuDbControl(session("ecid"));
     $code = $menuControl->delMenuItem($_POST["id"]);
     $this->ajaxReturn($code, Error::getErrMsg($code), 0);
 }