#1、xml格式化请求
    def xml_request(self):
        body = '''<?xml version="1.0" encoding="utf-8"?>
                <payment_request>
                  <zf_head>
                    <core_merchant_no>{0}</core_merchant_no>
                    <version>{1}</version>
                    <pay_channel>{2}</pay_channel>
                    <pay_transaction_id>{3}</pay_transaction_id>
                    <out_trade_no>{4}</out_trade_no>
                  </zf_head>
                  <paymentId>{5}</paymentId>
                  <reqSerialNum>{6}</reqSerialNum>
                  <memberId>{7}</memberId>
                </payment_request>'''\
            .format(self.request_data['core_merchant_no'],
                    self.request_data['version'],
                    self.request_data['pay_channel'],
                    self.request_data['pay_transaction_id'],
                    self.request_data['out_trade_no'],
                    self.request_data['paymentId'],
                    self.request_data['reqSerialNum'],
                    self.request_data['memberId'],)
        #请求返回
        r = requests.post(self.url, data=body.encode("utf-8"))
        return r.text

    #2、json请求
    def json_request(self,zf_info):
        request={
            "body":
                {"out_trade_no":"{0}".format(zf_info['body']['out_trade_no'])},
            "head":
                {"service":"front.query",
                 "version":"1.0",
                 "partner_id":"10000002048131212",
                 "core_merchant_no":"{0}".format(zf_info['head']['core_merchant_no']),
                 "sign":"",
                 "sign_type":"MD5",
                 "input_charset":"UTF-8"} }
        params = {
            "requestJson": json.dumps(request)
        }
        r = requests.post(self.url, data=params)
        return r.text

   #3、文件上传请求
    def file_request(self):
        body={'reqXml':'<?xml version="1.0" encoding="utf-8"?>'
                       '<payment_request>'
                       '<zf_head>'
                       '<core_merchant_no>{0}</core_merchant_no>'
                       '<version>{1}</version>       '
                       '<pay_channel>{2}</pay_channel>'
                       '<pay_transaction_id>{3}</pay_transaction_id>'
                       ' <out_trade_no>{4}</out_trade_no>'
                       '</zf_head>     '
                       '<paymentId>{5}</paymentId>'
                       '<reqSerialNum>{6}</reqSerialNum>'
                       '<memberId>{7}</memberId>'
                       '<photoType>{8}</photoType>'
                       '<picture>{9}</picture>  </payment_request>'
                        .format(self.request_data['core_merchant_no'],
                                self.request_data['version'],
                                self.request_data['pay_channel'],
                                self.request_data['pay_transaction_id'],
                                self.request_data['out_trade_no'],
                                self.request_data['paymentId'],
                                self.request_data['reqSerialNum'],
                                self.request_data['memberId'],
                                self.request_data['photoType'],
                                self.request_data['picture'])}

        f={'picture':open('D:\\aa.jpg','rb')}
        #请求返回
        r = requests.post(self.url,data=body,files=f)
        return r.text