How does iOS Add photos (included programs) to simulators and ios simulators?

How does iOS Add photos (included programs) to simulators and ios simulators?
At the beginning, I used the dumbest way to add photos to the iphone simulator. Method 1: First open safari, find the image, click the image, and save it to the local device (iphone). Method 2: drag any picture of the local computer to the iphone simulator, then save it to the local device (iphone). Now I'm testing the performance. I have to add several hundred photos. It's too slow to take the two methods above! So I found the following method: 1. Create a folder, add the photos you have collected to the folder. 2. Download the project and use the simulator to open it.

 

3, open the program, locate the folder just created, and then select import, wait until the import is completed 4, view the "photo" to see the current imported photo details: http://ios.662p.com/thread-2220-1-1.html