For the sake of safety, the payment account bound with the previous mobile phone number must be unbound, and the new mobile phone number must be bound after unbinding to avoid economic losses. Sensory codes are managed dynamically in three colors: red code, yellow code and green code, realizing one code for one person, one code for communication, one code for traffic check and one code for dynamic effectiveness in the whole province. Red team personnel are strictly controlled by relevant institutions and communities. Yellow code personnel strictly implement the requirements of home isolation medical observation and consciously accept community management. Green code personnel can travel and return to work when their body temperature is normal. Lanshan people can apply by entering Ganfutong and filling in the corresponding information. Search for Lanshan epidemic prevention code or flu code on Alipay, fill in the corresponding information, or apply. After receiving the health code, residents of country-specific ones and people returning from other places can enter and leave communities, hotels, supermarkets, schools, enterprises and institutions parks and other places where people are highly mobile and may gather. Although the mobile phone number has been changed, the previous information will not disappear.