图片切换放大，实现下一张下一张效果

[{"title":"（ 15 个子文件 704KB ） 图片切换放大，实现下一张下一张效果","children":[{"title":"css","children":[{"title":"bootstrap.css <span style='color:#111;'> 121.31KB </span>","children":null,"spread":false},{"title":"fsgallery.css <span style='color:#111;'> 5.75KB </span>","children":null,"spread":false},{"title":"bootstrap-responsive.css <span style='color:#111;'> 21.24KB </span>","children":null,"spread":false}],"spread":true},{"title":"img","children":[{"title":"2_mini.jpg <span style='color:#111;'> 85.26KB </span>","children":null,"spread":false},{"title":"2.jpg <span style='color:#111;'> 89.66KB </span>","children":null,"spread":false},{"title":"1.jpg <span style='color:#111;'> 85.18KB </span>","children":null,"spread":false},{"title":"4_mini.jpg <span style='color:#111;'> 64.81KB </span>","children":null,"spread":false},{"title":"3.jpg <span style='color:#111;'> 61.25KB </span>","children":null,"spread":false},{"title":"4.jpg <span style='color:#111;'> 42.78KB </span>","children":null,"spread":false},{"title":"Thumbs.db <span style='color:#111;'> 32.50KB </span>","children":null,"spread":false},{"title":"3_mini.jpg <span style='color:#111;'> 85.76KB </span>","children":null,"spread":false},{"title":"1_mini.jpg <span style='color:#111;'> 111.30KB </span>","children":null,"spread":false}],"spread":true},{"title":"index.html <span style='color:#111;'> 1.40KB </span>","children":null,"spread":false},{"title":"js","children":[{"title":"fs_forse.js <span style='color:#111;'> 5.12KB </span>","children":null,"spread":false},{"title":"jquery-1.9.1.js <span style='color:#111;'> 262.09KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]