单次分佣一直报：验证签名错误 https://api.mch.weixin.qq.com/pay/unifiedorder 接口地址 下面是参数： <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <xml> <transaction_id>4200000801202012291677869362</transaction_id> <out_order_no>APIYtXd2012291253013729ceshi</out_order_no> <receivers>[{"type":"PERSONAL_OPENID","account":"18910232656","amount":1,"description":"分到个人"}]</receivers> <nonce_str>RiuJLOjdQSPCZkz0D0HrDbupIufbPGiF</nonce_str> <sign_type>HMAC-SHA256</sign_type> <appid></appid> <mch_id></mch_id> <sign>签名</sign> </xml> 1、支付可以成功，证明秘钥和证书没问题 2、参数一一多次比多，应该没问题 3、参数值没有encode [图片] 下面是签名算法： [图片]