public function changepwAction($original_password, $new_password, $confirm_password)
 {
     $sysUserService = new SysUserService();
     $id = getLoginAdminUid();
     $ret = $sysUserService->changePassword($id, $original_password, $new_password, $confirm_password);
     if ($ret === true) {
         $this->success('密码修改成功!', U('Admin/Brand/index'));
     } else {
         $this->error($ret);
     }
 }