jquery实现图片左右切换的方法

<!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>图片左右滚动</title> <script src="https://www.jb51.net/jquery-1.6.2.min.js" type="text/javascript"></script> <script> $(function(){ var i=0; var li = $(".lxfscroll li"); var n=li.length-1; var speed = 300; li.not(":first").css({left:"400px"}); li.eq(n).css({left:"-400px"}); lxfNext=function (){ if (!li.is(":animated")) { if (i>=n){i=0;li.eq(n).animate({left:"-400px"},speed); li.eq(i).animate({left:"0px"},speed); }else{i++;li.eq(i-1).animate({left:"-400px"},speed);li.eq(i).animate({left:"0px"},speed);}; li.not("eq(i)").css({left:"400px"}); $("i").text(i+1); }else{}; }; lxfLast=function (){ if (!li.is(":animated")) { if (i<=0){i=n;li.eq(0).animate({left:"400px"},speed);li.eq(n).animate({left:"0px"},speed); }else{i--;li.eq(i+1).animate({left:"400px"},speed);li.eq(i).animate({left:"0px"},speed);} li.not("eq(i)").css({left:"-400px"}); $("i").text(i+1); }; }; }); </script> <style type="text/css"> * { font-size:12px; color:#333; text-decoration:none; padding:0; margin:0; list-style:none; font-style: normal; font-family: Arial, Helvetica, sans-serif; } .lxfscroll { width:400px; margin-left:auto; margin-right:auto; margin-top: 20px; overflow: hidden; position: relative; height: 300px; border: 1px dashed #CCC; } .button { margin-right:auto; margin-left:auto; width:400px; text-align:center; padding-top: 10px; } i { color:#F00; font-weight:bold; } .button input { padding-top: 4px; padding-right: 12px; padding-bottom: 4px; padding-left: 12px; } .lxfscroll ul li { height: 300px; width: 400px; text-align: center; line-height: 300px; position: absolute; font-size: 40px; font-weight: bold; } </style> </head> <body> <div> <ul> <li>我是第1张图片</li> <li>我是第2张图片</li> <li>我是第3张图片</li> <li>我是第4张图片</li> <li>我是第5张图片</li> <li>我是第6张图片</li> <li>我是第7张图片</li> <li>我是第N张图片</li> </ul> </div> <div> <input type="button" value="上一个" /> <input type="button" value="下一个" /> </div> <div>当前显示的是第 <i>1</i> 张图片</div> </body> </html>

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