First, you need to click on the official WeChat account of Chengdu Library and select "Map Service"-"Reader Reservation" in the bottom submenu. Then in the real-name reservation interface, you need to provide your name, ID number and phone number to make an appointment. When you make a successful reservation, the system will give you corresponding tips.
To enter the library on the day of appointment, you need to open WeChat and scan the registration code at the entrance of the library for appointment verification. At the same time, it is necessary to cooperate with the staff to take their temperature, scan the place code and show the travel itinerary code before entering the museum.
If you need more detailed information, I suggest you contact Chengdu Library directly, or check their official website for the latest information.