I come from Huainan. How can Ankang code be Ankang code and Hefei code?

You mean I am from Huainan. Why is Ankang code from Hefei? Because the health code has not been updated.

Your health code was actually applied in Hefei, and now you are in Huainan, and the health code has not been updated, so it will appear that the health code is displayed in Huainan in Hefei.