Find the picture to edit in the WeChat chat interface, press and hold the picture, and a toolbar will pop up above the picture. Click Edit to switch to the editing interface. The fifth option at the bottom of the editing page is mosaic, and there are two effects to choose from. Click the third option, you can also add different colors of text.
The health code is based on real data, which is declared by citizens on the Internet. After background review, the personal QR code can be generated. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city. The introduction of the health code aims to make the work of returning to work more accurate, scientific and orderly.