How does unity let the object join the UI and move with the object
After the object is added to the UI, it moves with the object
1. Create the UI that needs to be added under the object
2. Modify the rendering mode
Change the rendering mode of canvas Render Mode to world Space
3. Modify UI coordinates and size
Modify the local coordinates of the canvas to 0,0,0 and
set the local coordinates of the added ui picture to 0,0,0
and finally modify the size of the ui