以下是参数
POST
/v3/certificates
1647744376
SCoIRvhO9rnqsI7JRS9v
{"mchid":"1607543531","out_trade_no":"12177525012014070","appid":"wx0773a11b81cd93f4","description":"两个视频一月会员","notify_url":"http://www.lianggeshipin.com/PaywinxinNativePay.action","amount":{"total": 100,"currency":"CNY"}}
这个是生成的 “验签串”
PsVOGVvVoZNJu1BjuRReB6bNofqtwtNaSNb7TYor5xASX6SvPskusteaJP/OmWNNP4EN+hf0eGrcUV9f4A/6KNwLnWfMUc/K3OcyKgJ7OKI4jik1ky9ZpQw+g93Ayoc7Wtd0s45BO84uWuKwCGE0+9jDqssH5QWNnKTA6125JBPDcVtWGckM5KeSqZfSIOstDti2YPgHJRyGEeEp55gzAb+Qc8PEWmCVQ6j82CcS9bgiUg+7UmUIMkLntIav7X5sqMh+7o58vC7/APvYjwG2zu3dlVQg5PC3ggrsjT7OhLN766CEKH3DXFb1wdDnKblPOMEkFWHGCQnd06zUlonwvA==
这个是http 头里的信息
Authorization: WECHATPAY2-SHA256-RSA2048 mchid="1607543531",nonce_str="SCoIRvhO9rnqsI7JRS9v",timestamp="1647744376",serial_no="7595017E572CEA7BD92E040B38167CF61FF850E3",signature="PsVOGVvVoZNJu1BjuRReB6bNofqtwtNaSNb7TYor5xASX6SvPskusteaJP/OmWNNP4EN+hf0eGrcUV9f4A/6KNwLnWfMUc/K3OcyKgJ7OKI4jik1ky9ZpQw+g93Ayoc7Wtd0s45BO84uWuKwCGE0+9jDqssH5QWNnKTA6125JBPDcVtWGckM5KeSqZfSIOstDti2YPgHJRyGEeEp55gzAb+Qc8PEWmCVQ6j82CcS9bgiUg+7UmUIMkLntIav7X5sqMh+7o58vC7/APvYjwG2zu3dlVQg5PC3ggrsjT7OhLN766CEKH3DXFb1wdDnKblPOMEkFWHGCQnd06zUlonwvA=="
他为什么说我错了，哪错了，鹅厂的人能不能负点责任。
麻烦认真看看文档描述，https://api.mch.weixin.qq.com/v3/pay/transactions/native 统一下单的url是这个呀，截取应该是 /v3/pay/transactions/native，你看看你用的是什么，之前就告诉你了，工具只校验签名的方式是否正确，不校验参数的正确性。