How does Apple's mobile phone put the photos in the information into the photo album?

Use the sharing function to save, as shown below:

1. Find the photo in the message and click on the photo;

2. Click the displayed full-screen photo again to display the following interface:

3. Look at the sharing sign with a small arrow in the box in the lower left corner. Click on it, and the following interface will appear.

4. Click "Save Image" in the lower left corner to save the photo to the mobile phone album.