wx.downloadFile 下载文件造成这种错误 因为什么 是后端的问题么？
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- Query and Verify QR Code Status: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Standard Trading Components and Open Interfaces/Server interface/Get and verify QR code interface/Query QR code status
- 3. Sample code: Mini Program/Development/Capabilities/Industry capability/Ride Code/User Signing Status Query
- User Signing Status Query: Mini Program/Development/Capabilities/Industry capability/Ride Code/User Signing Status Query
- Return code: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Standard Trading Components and Open Interfaces/Server interface/Get and verify QR code interface/Query QR code status
- Enumeration value - status: 小商店/Development/Capabilities/Commercial capabilities/Trading component/Standard Trading Components and Open Interfaces/Server interface/Get and verify QR code interface/Query QR code status