Is there a code for entering the supermarket in the community?

The code to enter the supermarket in the community is not coded in and out. According to the relevant data, according to the relevant regulations on epidemic prevention and control, you need to show your health code when you enter the community supermarket, but you don't need to show it when you go out. Health code is a personal two-dimensional code based on actual real data, which is generated by citizens or people who have returned to work on their own online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.