环境：com.github.wechatpay-apiv3
版本：0.2.6
预下单成功并返回 APP 调起支付所需参数但是ios使用对应参数无法调起支付，提示支付验证签名失败
微信支付返回 -2
相关文档
- 统一下单: 小程序/开发/云托管/开发指引/微信支付/支付接口/统一下单
- App: 小程序/开发/框架/框架接口/小程序 App/App
- Mobile App Assistant: Mini Program/Development/Extended/Update log/Mobile App Assistant
- Mobile App Assistant: Mini Program/Development/Extended/Operating Guide/Mobile App Assistant
- App Download and install: Mini Program/Development/Extended/Operating Guide/Mobile App Assistant