function member_auth($cardId, $passWord)
 {
     $client = new SoapClient('http://server.1card1.cn/Interface/MemberAPI.svc?wsdl');
     $parm = array('businessGuid' => $this->businessGuid, 'cardid' => $cardId, 'memberPwd' => $passWord);
     $client->soap_defencoding = 'UTF-8';
     $client->decode_utf8 = false;
     $client->xml_encoding = 'UTF-8';
     $result = $client->MemberLogin_Authenticate($parm);
     return $result;
 }