Things:
Control its scroll bar to scroll a group of pictures. At this time, copy the group of pictures and add them to the original picture group. Now there are two sets of pictures. You can imagine that now the scroll bar continues to scroll, the last picture of the original group of pictures has scrolled to the top and disappeared, and the first picture of the copied group of pictures appears after the last picture of the original picture. At this time, you can It feels like seamless scrolling.
