jQuery实现文字自动横移

<style type="text/css">#demo {overflow:scroll;width:740px; } #indemo { float: left; width: 800%;}#demo1 { float: left; }#demo2 { float: left;margin-left:7px;}</style><script src="bootstrap-3.3.5-dist/js/jquery-1.11.3.js"></script><div id="demo"> <div id="indemo"> <div id="demo1">  <a href="#"><img src="zhuanpan/images/pointer.png" alt="#" /></a>  <a href="#"><img src="zhuanpan/images/pointer.png" alt="#" /></a>  <a href="#"><img src="zhuanpan/images/pointer.png" alt="#" /></a> </div> <div id="demo2"></div> </div></div>一 采用jquery方式实现文字横移<script> var speed=20; $("#demo2").html($("#demo1").children().clone()); var n=0; function Marquee(){ if(n>=$("#demo").innerWidth())  n=0; else{  n++; } $("#demo").scrollLeft( n ); }var MyMar=setInterval(Marquee,speed); $("#demo").mouseover(function(){clearInterval(MyMar)}); $("#demo").mouseout(function(){MyMar=setInterval(Marquee,speed)});</script>二 采用原生script实现横移<script>var speed=10;var tab=document.getElementById("demo");var tab1=document.getElementById("demo1");var tab2=document.getElementById("demo2");$("#demo2").text($("#demo1").clone());$("#demo2").clone();function Marquee(){ if(tab2.offsetWidth-tab.scrollLeft<=0) tab.scrollLeft-=tab1.offsetWidth else{ tab.scrollLeft++; }}var MyMar=setInterval(Marquee,speed);tab.onmouseover=function() {clearInterval(MyMar)};tab.onmouseout=function() {MyMar=setInterval(Marquee,speed)};</script>