关于符合WEB标准的滚动文字特效的实现方法

由于marquee标签现在用得是越来越少了，所以滚动效果的做法大多也都改用javascript来实现了，至于不明白为什么不直接用marquee标签的朋友，不妨先阅读一下这篇文章。

第一种方法：用Javascript模拟marquee的做法。

<!DOCTYPE <a href="http://www.viphot.com/InfoList/Catalog_76_1.html" target="_blank" title="Html" >Html</a> PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html <a href="http://www.viphot.com/InfoList/Catalog_83_1.html" target="_blank" title="XML学习教程" >XML</a>ns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> <title>热点新闻webjx.com</title> <style type="text/<a href="http://www.viphot.com/InfoList/Catalog_125_1.html" target="_blank" title="Css技巧 Css资讯" >Css</a>">  </style> </head> <body> <h4>滚动新闻</h4> <script language="JavaScript" type="text/javascript"> var marqueeContent=new Array(); marqueeContent[0]="<a href=http://xyq.163.com/news/2006/11/2-2-20061102170913.html target=_blank>用“梦幻密保”快速取回帐号密码</a>"; marqueeContent[1]="<a href=http://ekey.163.com/ target=_blank>网易将军令官方网站</a>"; marqueeContent[2]="<a href=http://xyq.163.com/download/wallpaper.htm target=_blank>最新<a href="http://www.viphot.com/InfoList/Catalog_210_1.html" target="_blank" title="壁纸" >壁纸</a>下载</a>"; marqueeContent[3]="<a href=http://xyq.163.com/download/around.htm target=_blank>最新屏保下载</a>"; var marqueeInterval=new Array(); var marqueeId=0; var marqueeDelay=2000; var marqueeHeight=20; function initMarquee() { var str=marqueeContent[0]; document.write('<div id="marqueeBox" style="overflow:hidden;width:250px;height:'+marqueeHeight+'px" onmouseover="clearInterval(marqueeInterval[0])" onmouseout="marqueeInterval[0]=setInterval(\'startMarquee()\',marqueeDelay)"><div>'+str+'</div></div>'); marqueeId++; marqueeInterval[0]=setInterval("startMarquee()",marqueeDelay); } function startMarquee() { var str=marqueeContent[marqueeId]; marqueeId++; if(marqueeId>=marqueeContent.length) marqueeId=0; if(document.getElementById("marqueeBox").childNodes.length==1) { var nextLine=document.createElement('DIV'); nextLine.innerHTML=str; document.getElementById("marqueeBox").appendChild(nextLine); } else { document.getElementById("marqueeBox").childNodes[0].innerHTML=str; document.getElementById("marqueeBox").appendChild(document.getElementById("marqueeBox").childNodes[0]); document.getElementById("marqueeBox").scrollTop=0; } clearInterval(marqueeInterval[1]); marqueeInterval[1]=setInterval("scrollMarquee()",20); } function scrollMarquee() { document.getElementById("marqueeBox").scrollTop++; if(document.getElementById("marqueeBox").scrollTop%marqueeHeight==(marqueeHeight-1)){ clearInterval(marqueeInterval[1]); } } initMarquee(); </script> </body> </html>

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