1, search database
Alipay homepage search library.
2. Choose library services
Click on "Library Services" in your city.
3. Click to enter the loan treasure.
Click ""to enter the loan treasure "".
4. Select the name of the area and library.
Choose the province and city where the library card is located, and choose the library.
5. Click on the QR code card
Click on the QR code card.
6. The library card account can be used.
You can see your reader ID number.