17.京东左右滑动无缝轮播图 · 程序员开发笔记

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>京东左右滑动无缝轮播图</title> <style type="text/css"> *{ padding: 0; margin: 0; } #flash{ width: 473px; height: 180px; border: 5px solid blue; margin: 20px auto; position: relative; overflow: hidden; } #flash .pic_box{ width: 2365px; height: 190px; position: absolute; top: 0px; left: 0px; } #flash .pic_box img{ float: left; } #flash ul li{ list-style: none; width: 36px; height: 5px; background: #999999; float: left; margin-right: 2px; } #flash ul{ position: absolute; left: 161px; top: 169px; } #flash ul li.cur{ background: #7ABD54; } </style> </head> <body> <div id="flash"> <div class="pic_box"> <img src="images/1.jpg" alt="" /> <img src="images/2.jpg" alt="" /> <img src="images/3.jpg" alt="" /> <img src="images/4.jpg" alt="" /> <img src="images/1.jpg" alt="" /> </div> <ul> <li class="cur"></li> <li></li> <li></li> <li></li> </ul> </div> <script src="jquery-1.11.3.min.js" type="text/javascript" charset="utf-8"></script> <script type="text/javascript"> var c = 0; setInterval(function(){ c++; if (c==5) { $("#flash .pic_box").css('left','0'); c=1; } //计算大块的left值 var l = c*-473; //让大块移动到对应的left值上 $("#flash .pic_box").animate({'left':l},300); if (c==4) { $("#flash ul li").eq(0).css('background','#7ABD54').siblings('li').css('background','#999999'); } //让c号li变绿,兄弟li变灰 $("#flash ul li").eq(c).css('background','#7ABD54').siblings('li').css('background','#999999'); },1000); </script> </body> </html>