1. 官网下载
http://lokeshdhakar.com/projects/lightbox2/
2.引入 css jquery js
3. HTML格式
<a href="images/image-2.jpg" data-lightbox="roadtrip"> <img src='Image #1'> </a>
<a href="images/image-3.jpg" data-lightbox="roadtrip"> <img src='Image #2'> </a>
<a href="images/image-4.jpg" data-lightbox="roadtrip"> <img src='Image #3'> </a>