Taking the iPhone6 mobile phone as an example, the specific operation includes the following steps:

First, open "Settings" on the phone desktop.

Second, open the "Settings", find the "Wallpaper" column, and click enter.

Third, after entering "Wallpaper", click "Select New Wallpaper" to enter.

Fourth, then choose the appropriate "wallpaper".

5. Select "Set at the same time" to proceed to the next step.

Sixth, finally click on the "perspective" column to complete the operation.