A QR code used in some stores can be scanned and paid by WeChat and Alipay. What is the principle?
Is the QR code a simple web page?
If it is a web page, How can I call two third-party interfaces at the same time?
世界只因有你2017-06-29 10:10:10
The QR code is a transit URL
Determine whether WeChat or Alipay is opened and jump to the corresponding website
Can be judged by UA
仅有的幸福2017-06-29 10:10:10
You can determine whether it was scanned through WeChat or Alipay, and can you call the corresponding interface?