Is there a difference between taking a health code with a camera and taking a mobile phone to a print shop to print the health code?

The difference between taking a photo of a health code with a camera and taking a mobile phone to a print shop to print out the health code is that one health code exists in the form of a photo and the other health code exists in the form of a printed matter ... There are differences in form, but there is no difference in essence. As for effectiveness, both health laws are effective. But it is only valid on the same day. On the second day, it was invalid and needed to be scanned again.

The function of health code is to prove personal travel status and other relevant information.

Because people can't stay in the same place for a long time and always need to travel to different places, the health code needs to be updated regularly. In this way, personal status can be monitored in real time to ensure safety and health.

The best state of health code is to scan the code with a mobile phone and then save it on the mobile phone for real-time reference. ..... If you can't carry your mobile phone or scan the code for some reason, you can scan the health code with your mobile phone at home or other places, then take photos or print it, and show it in the form of photos with printed copies or health codes. ...

However, the health code is valid on the same day ... the next day, and the code needs to be scanned again. ...