2019-05-19 18:05:59.388 DEBUG WxPayApi: Refund request : <xml><appid><![CDATA[wx9da7226c9eb9a6a4]]></appid><mch_id><![CDATA[1269067301]]></mch_id><nonce_str><![CDATA[b139365887ce4230add8d0b0132128ae]]></nonce_str><op_user_id><![CDATA[1269067301]]></op_user_id><out_refund_no><![CDATA[126906730120190519180559767]]></out_refund_no><refund_fee>1</refund_fee><sign><![CDATA[A89A6713F662FF1C79205F354D8F8839]]></sign><sub_mch_id><![CDATA[1502408481]]></sub_mch_id><total_fee>1</total_fee><transaction_id><![CDATA[4200000325201905199638147310]]></transaction_id></xml> 2019-05-19 18:05:59.397 ERROR HttpService: System.Security.Cryptography.CryptographicException: 指定的网络密码不正确。