1. After unlocking the iPhone, open the photo application on the home screen. Go to the photo details page of the app and open the photo album. Once in the photo album, click the Select button at the top right of the screen.

2. Find the photo album you want to use as the raw material for the slide show, click to enter, find the first photo you want to put at the beginning, and then click the "small box" button in the lower left corner of the page to enter the next step. .

3. First open ppt, and then select Insert-Sound in the menu bar of the software. Next, select the music file you want to insert and click OK. In the pop-up window, choose according to your needs whether to automatically play music when showing the ppt or to play music after clicking the mouse. Just make your selection as needed.