调 https://api.mch.weixin.qq.com/pay/closeorder 接口
{nonce_str=Dxp4gnkOmBDpXTcP, appid=wxa2fa41e3d6ee7bd0, sign=E4B73C57001DBA9D1BCAEB4395139545836F1F21C93D5A36F7B843118F32375B, err_code=FREQUENCY_LIMITED, return_msg=OK, result_code=FAIL, err_code_des=你的操作过于频繁,请稍后再试。, mch_id=1510238281, sub_mch_id=, return_code=SUCCESS} 返回:你的操作过于频繁,请稍后再试.原因是什么