该javascr ipt代码可以实现图片轮播的功能，即将几张图片按顺序播放展示，每张图片对应有不同的数字，当播放到某张图片时，该图片对应的数字会有所变化，例如变红。当点击某个数字时，也可优先播放该数字对应的图片(The Javascr ipt code can achieve the function of picture carousel, a few pictures will be played sequentially, each image corresponding to different numbers, when playing to a picture, the picture of the corresponding number will change, such as red. When a number is clicked, the number of the figures can be played first.)