<xml>     <receiver>         <![CDATA[{"account":"oZlEK4yd4Jv5gcyni5BR2hOO2wBo","relation_type":"USER","type":"PERSONAL_OPENID"}]]>     </receiver>     <appid>         <![CDATA[wx5dd15cfa8429ee97]]>     </appid>     <mch_id>         <![CDATA[1607965846]]>     </mch_id>     <nonce_str>         <![CDATA[NqO3ovTkSdc7nWpuQGyr5AiEsXl80IML]]>     </nonce_str>     <sign_type>         <![CDATA[HMAC-SHA256]]>     </sign_type>     <sign>         <![CDATA[5E2EF73572274238EF4B17D8A2BAF3ED41F7916279A0637513EFCD4DB7FB7DF0]]>     </sign> </xml> https://pay.weixin.qq.com/wiki/doc/api/allocation.php?chapter=27_3&index=4 校验是正确了 [图片] 但返回总是这样 <xml> <return_code><![CDATA[SUCCESS]]></return_code> <result_code><![CDATA[FAIL]]></result_code> <err_code><![CDATA[SIGN_ERROR]]></err_code> <err_code_des><![CDATA[验证签名失败]]></err_code_des> <mch_id><![CDATA[1607965846]]></mch_id> <appid><![CDATA[wx5dd15cfa8429ee97]]></appid> <receiver><![CDATA[{"type":"PERSONAL_OPENID","account":"oZlEK4yd4Jv5gcyni5BR2hOO2wBo","relation_type":"USER"}]]></receiver> <nonce_str><![CDATA[66bcd8661413b613]]></nonce_str> <sign><![CDATA[46F15678B0DB8BC1D021952C5297727EF292379558453441EF46E1072FD53F1F]]></sign> </xml> 不知道是哪个地方错了

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