1. First click on the photo album "Photos" of Apple's mobile phone, as shown in the figure below.
2. Click "View All", as shown in the figure below.
3. Enter the photo album and find the photo you want to delete, as shown in the figure below.
4. Click "Select" in the upper right corner, as shown in the figure below.
5. Then slide the screen with your finger to select multiple photos, and then click "Delete" in the lower right corner, as shown in the figure below.