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用jQuery实现广告滚动及淡入淡出

这次给大家带来用jquery实现广告滚动及淡入淡出,jquery实现广告滚动及淡入淡出的注意事项有哪些,下面就是实战案例,一起来看一下。
下面是上下滚动源码
<!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>www.jb51.net 向上滚动代码带上下翻按钮滚动特效</title> <style type="text/css"> body{ color:#333; font-size:13px;} h3,ul,li{margin:0;padding:0; list-style:none;} .scrollbox{ width: 340px; margin: 0 auto; overflow: hidden; border: 1px solid #cfcfcf; padding: 10px; } #scrollp{width:340px;height:359px; overflow:hidden;}/*这里的高度和超出隐藏是必须的*/ #scrollp li{max-height:90px; width:300px; padding:0 20px;background:url(ico-4.gif) no-repeat 10px 23px; overflow:hidden; vertical-align:bottom; zoom:1; border-bottom:#b7b7b7 dashed 1px;} #scrollp li h3{ height:24px; padding-top:13px; font-size:14px; color:#353535; line-height:24px; width:300px;} #scrollp li h3 a{color:#353535; text-decoration:none}#scrollp li h3 a:hover{ color:#f00} #scrollp li p{ height:36px; width:300px; color:#416a7f; line-height:18px; overflow:hidden} #scrollp li p a{ color:#416a7f; text-decoration:none} .scroltit{ height:26px; line-height:26px; padding-bottom:4px; margin-bottom:4px;} .scroltit h3{ width:100px; float:left;} .scroltit .updown{float:right; width:32px; height:22px; margin-left:4px} #but_up{ background:url(up.gif) no-repeat 0 0; text-indent:-9999px} #but_down{ background:url(down.gif) no-repeat 0 0; text-indent:-9999px} #n{margin:10px auto; width:920px; border:1px solid #ccc;font-size:12px; line-height:30px;} #n a{ padding:0 4px; color:#333} .test{   margin-top: 50px;   background: #cccccc;   border: .5px solid #ddd;   overflow: hidden;   height: 44px;   width: 100px; } .test li{   height: 44px;   width: 100%;   float: left;   line-height: 44px;   font-size: 18px;   border-top: .5px solid #ddd; } </style> <script src="jquery-1.4.4.min.js" type="text/javascript"></script> <script src="jq_scroll.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function(){   $(#scrollp).scroll({line:1,speed:500,timer:2000,up:but_up,down:but_down});   (function(){     var lineh = $(.test).find(li:first).height();     var appendto = function(){       $(.test).find(li:first).appendto($(.test));       $(.test ul).css(margintop, 0);     };     var animate = function(){       $(.test ul).eq(0).animate({         margintop: -lineh       },500,appendto)     };     var delayer = setinterval(animate, 2000);   })() }); </script> </head> <body> <p align="center"><strong>特效效果如下:</strong></p> <p> </p> <p class="scrollbox">   <p id="scrollp">     <ul>       <li><h3><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="linktit">移动娱乐业务突飞</a></h3></li>       <li><h3><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="linktit">不停转动向上滚动可控制向上向下滚动特效</a></h3> <p>p css js自动不断向上一个一个滚动可控制向上向下滚动特效... </p></li>       <li><h3><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="linktit">全国涂料总产量呈现直线下滑态势</a></h3> <p>我国涂料工业将面临涂料消费税征收全面铺开,环保压力持续增加,2015年的形势不容乐观... </p></li>       <li><h3><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="linktit">镂空渔网超吸睛</a></h3> <p>镂空罩衫,短短的版型穿起来显高又俏皮,内搭长款连衣裙,非常大方哦... </p></li>       <li><h3><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="linktit">主题创业街亮相</a></h3> <p>目前已有包括咖啡厅、酒吧、餐厅、瑜伽室在内的8家商铺入驻该火车... </p></li>     </ul>   </p>   <p class="scroltit"><p class="updown" id="but_down">向上</p><p class="updown" id="but_up">向下</p></p> </p> <p class="test">   <ul>     <li>sections1</li>     <li>sections2</li>     <li>sections3</li>     <li>sections4</li>   </ul> </p> </body> </html>
下面是jq插件源码
/* jq向上滚动带上下翻页按钮 */ (function($){ $.fn.extend({     scroll:function(opt,callback){         //参数初始化         if(!opt) var opt={};         var _btnup = $(#+ opt.up);//shawphy:向上按钮         var _btndown = $(#+ opt.down);//shawphy:向下按钮         var timerid;         var _this=this.eq(0).find(ul:first);         var   lineh=_this.find(li:first).height(), //获取行高,此处行高固定但是当文字伟一行或者两行时,要动态获取吧??             line=opt.line?parseint(opt.line,10):parseint(this.height()/lineh,10), //每次滚动的行数,默认为一屏,即父容器高度             speed=opt.speed?parseint(opt.speed,10):500; //卷动速度,数值越大,速度越慢(毫秒)             timer=opt.timer //?parseint(opt.timer,10):3000; //滚动的时间间隔(毫秒)         if(line==0) line=1;         var upheight=0-line*lineh;         //滚动函数         var scrollup=function(){             _btnup.unbind(click,scrollup); //shawphy:取消向上按钮的函数绑定             _this.animate({               //当滚动的元素height为max-height时,实时获取元素height                 margintop:-_this.find(li:first).height()             },speed,function(){                 // for(i=1;i<=line;i++){                 //     _this.find(li:first).appendto(_this);                 // }                 _this.find(li:first).appendto(_this);                 _this.css({margintop:0});                 _btnup.bind(click,scrollup); //shawphy:绑定向上按钮的点击事件             });         }         //shawphy:向下翻页函数         var scrolldown=function(){             _btndown.unbind(click,scrolldown);             for(i=1;i<=line;i++){                 _this.find(li:last).show().prependto(_this);             }             _this.css({margintop:-_this.find(li:first).height()});             _this.animate({                 margintop:0             },speed,function(){                 _btndown.bind(click,scrolldown);             });         }         //shawphy:自动播放         var autoplay = function(){             if(timer)timerid = window.setinterval(scrollup,timer);         };         var autostop = function(){             if(timer)window.clearinterval(timerid);         };          //鼠标事件绑定         _this.hover(autostop,autoplay).mouseout();         _btnup.css(cursor,pointer).click( scrollup ).hover(autostop,autoplay);//shawphy:向上向下鼠标事件绑定         _btndown.css(cursor,pointer).click( scrolldown ).hover(autostop,autoplay);     } }) })(jquery);
另外再贴一份,删改之后的脚本
/* jq向上滚动带上下翻页按钮 */ (function($){ $.fn.extend({     txtscroll:function(opt,callback){         //参数初始化         if(!opt) var opt={};         var _btnup = $(#+ opt.up);//shawphy:向上按钮         var _btndown = $(#+ opt.down);//shawphy:向下按钮         var timerid;         var _this=this.eq(0).find(ul:first);             speed=opt.speed?parseint(opt.speed,10):500; //卷动速度,数值越大,速度越慢(毫秒)             timer=opt.timer?parseint(opt.timer,10):2000; //滚动的时间间隔(毫秒)         //滚动函数         var scrollup=function(){             _btnup.unbind(click,scrollup); //shawphy:取消向上按钮的函数绑定             _this.animate({                 //当滚动的元素height为max-height时,实时获取元素height                 margintop: -_this.find(li:first).height()             },speed,function(){                 _this.find(li:first).appendto(_this);                 _this.css({margintop:0});                 _btnup.bind(click,scrollup); //shawphy:绑定向上按钮的点击事件             });         }         //shawphy:向下翻页函数         var scrolldown=function(){             _btndown.unbind(click,scrolldown);             _this.find(li:last).show().prependto(_this);             _this.css({margintop:-_this.find(li:first).height()});             _this.animate({                 margintop:0             },speed,function(){                 _btndown.bind(click,scrolldown);             });         }         //shawphy:自动播放         var autoplay = function(){             if(timer) setintervalt = window.setinterval(scrollup,timer);         };         var autostop = function(){             if(timer)window.clearinterval(setintervalt);         };          //鼠标事件绑定         _this.hover(autostop,autoplay).mouseout();         _btnup.css(cursor,pointer).click( scrollup ).hover(autostop,autoplay);//shawphy:向上向下鼠标事件绑定         _btndown.css(cursor,pointer).click( scrolldown ).hover(autostop,autoplay);     } }) })(jquery);
相信看了本文案例你已经掌握了方法,更多精彩请关注其它相关文章!
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以上就是用jquery实现广告滚动及淡入淡出的详细内容。
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