public function updateFeedback($openId, $feedbackId)
{
$result = $this->httpGet(self::WECHAT_PAY_FEEDBACK_URL . 'access_token=' . $this->getAccessToken(), ['openid' => $openId, 'feedbackid' => $feedbackId]);
return isset($result['errmsg']) && $result['errmsg'] == 'ok';
}