支付宝线下支付：支付成功后仍可调用取消接口成功

• 只有当面付交易（线下支付），当天可以调用CANCEL接口取消
• 不是当天的交易的话，不能取消，只能退款
• 当天的交易可以取消或者退款
• 只有线下支付是这样的
• 线上支付，是没有取消接口的

关于对账单，支付完成后：

• 1走退款：有P和R记录
• 2走取消：transaction_file只有C记录；settlment_file在交易支付成功的前提下，会是一条正向交易记录，一条退款记录

支付成功：

<alipay>
    <is_success>T</is_success>
    <request>
        <param name="trans_create_time">20201202102128</param>
        <param name="biz_product">OVERSEAS_MBARCODE_PAY</param>
        <param name="_input_charset">UTF-8</param>
        <param name="identity_code_type">barcode</param>
        <param name="sign">c1ff3e12d6a83393e2c1518aee98fc85</param>
        <param name="alipay_seller_id">2088621953527954</param>
        <param name="trans_name">display your order info</param>
        <param name="notify_url">https://callback.yezhou.cc/alipay/payment/alipay_offline/barcode</param>
        <param name="trans_amount">500.55</param>
        <param name="extend_info">{"secondary_merchant_id":"182020110200218018","secondary_merchant_industry":"0780","secondary_merchant_name":"appblog.cn","store_id":"182020110200218028","store_name":"qa_madonald"}</param>
        <param name="partner_trans_id">132020120200601008</param>
        <param name="partner">2088621953527954</param>
        <param name="service">alipay.acquire.overseas.spot.pay</param>
        <param name="currency">THB</param>
        <param name="buyer_identity_code">286951561588995462</param>
        <param name="sign_type">MD5</param>
    </request>
    <response>
        <alipay>
            <alipay_buyer_login_id>for*@alitest.*</alipay_buyer_login_id>
            <alipay_buyer_user_id>2088622925098759</alipay_buyer_user_id>
            <alipay_pay_time>20201202102132</alipay_pay_time>
            <alipay_trans_id>2020120222001498750501294092</alipay_trans_id>
            <currency>THB</currency>
            <exchange_rate>0.20311992</exchange_rate>
            <partner_trans_id>132020120200601008</partner_trans_id>
            <result_code>SUCCESS</result_code>
            <trans_amount>500.55</trans_amount>
            <trans_amount_cny>101.67</trans_amount_cny>
        </alipay>
    </response>
    <sign>3a3958c11c42319a8b36d4161db7dcd3</sign>
    <sign_type>MD5</sign_type>
</alipay>

退款成功：

<?xml version="1.0" encoding="UTF-8"?>
<alipay>
    <is_success>T</is_success>
    <request>
        <param name="out_trade_no">132020120200601008</param>
        <param name="partner">2088621953527954</param>
        <param name="_input_charset">UTF-8</param>
        <param name="service">alipay.acquire.cancel</param>
        <param name="sign">e88b3a7181fc4eb49cbcbd2a4adf809b</param>
        <param name="sign_type">MD5</param>
        <param name="timestamp">1606875699</param>
    </request>
    <response>
        <alipay>
            <action>refund</action>
            <out_trade_no>132020120200601008</out_trade_no>
            <result_code>SUCCESS</result_code>
            <retry_flag>N</retry_flag>
            <trade_no>2020120222001498750501294092</trade_no>
        </alipay>
    </response>
    <sign>b285153244938bd790449b418fbd1ec2</sign>
    <sign_type>MD5</sign_type>
</alipay>

如果是未支付，取消接口返回：

<?xml version="1.0" encoding="UTF-8"?>
<alipay>
    <is_success>T</is_success>
    <request>
        <param name="out_trade_no">132020120400603015</param>
        <param name="partner">2088621953527954</param>
        <param name="_input_charset">UTF-8</param>
        <param name="service">alipay.acquire.cancel</param>
        <param name="sign">4986f4866d564f978fdce6a2cad715ac</param>
        <param name="sign_type">MD5</param>
        <param name="timestamp">1607056755</param>
    </request>
    <response>
        <alipay>
            <action>close</action>
            <out_trade_no>132020120400603015</out_trade_no>
            <result_code>SUCCESS</result_code>
            <retry_flag>N</retry_flag>
            <trade_no>2020120422001485280505744443</trade_no>
        </alipay>
    </response>
    <sign>982c981cdceaa43bb85f10c13d80da22</sign>
    <sign_type>MD5</sign_type>
</alipay>