学习技巧：js不间断向左滚动

<div id=demo style=overflow:hidden;height:460;width:350;background:#f4f4f4;color:#ffffff><table align=left cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="http://www.geekg.com/files/images6/7638a9d53c77bc6b347539beb2b78411.jpg"><img src="http://www.geekg.com/files/images6/6cda12ee12ed913dbc75d443f1fbd995.jpg"><img src="http://www.geekg.com/files/images6/8ff3bd60010af89ebcbf524cc266d33a.jpg"><img src="http://www.geekg.com/files/images6/dae81da93169e09da0bb81964d1168be.jpg"><img src="http://www.geekg.com/files/images6/833f0e3b0d04ae115a055431ef4928af.jpg"></td><td id=demo2 valign=top></td></tr></table></div> <script> var speed=30 demo2.innerHTML=demo1.innerHTML function Marquee(){ if(demo2.offsetWidth-demo.scrollLeft<=0) demo.scrollLeft-=demo1.offsetWidth else{ demo.scrollLeft++ } } var MyMar=setInterval(Marquee,speed) demo.onmouseover=function() {clearInterval(MyMar)} demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)} </script> 
提示：CTRL+A全部复制再运行，您也可以先修改部分代码再运行。