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本文实例讲述了JavaScript实现滚动栏效果的方法。分享给大家供大家参考。具体如下:
<!DOCTYPE html> <html> <head lang="en"><meta charset="UTF-8"><title></title><style> * {margin: 0;padding: 0; } #div1 ul{position: absolute;left: 0px;top: 0px; } #div1 ul li img {width: 187px;height: 125px; } #div1 ul li{float: left;width: 187px;height: 125px;list-style: none; } #div1{width: 748px;height: 125px;position: relative;background-color: chartreuse;overflow: hidden;float: left; } #body{width: 948px;height: 125px;margin: 100px auto;} #body #leftDiv{float: left;width: 100px;height: 100px; } #body #rightDiv{float: left;width: 100px;height: 100px; }#body #leftDiv button{background-image: url("image/left.PNG");width: 100px;height: 100px; } #body #leftDiv button img{width: 100px;height: 100px; } #body #rightDiv button img{width: 100px;height: 100px; }</style><script> window.onload=function(){var oDiv=document.getElementById("div1");var oUl=oDiv.getElementsByTagName("ul")[0];var oLi=oUl.getElementsByTagName("li");var oLeft=document.getElementById("leftDiv");var oright=document.getElementById("rightDiv");oUl.innerHTML+=oUl.innerHTML;oUl.style.width=oLi[0].offsetWidth*oLi.length+"px";var speed=-2;function move(){ if (oUl.offsetLeft<-oUl.offsetWidth/2){oUl.style.left="0"; }else if(oUl.offsetLeft>0){oUl.style.left=-oUl.offsetWidth/2+"px"; } oUl.style.left=oUl.offsetLeft+speed+"px";};var timer=setInterval(move,30);oLeft.onclick=function(){ speed=-2;};oright.onclick= function () { speed=2;};oUl.onmouseover=function(){ clearInterval(timer);};oUl.onmouseout=function(){ timer=setInterval(move,30);}; }</script> </head> <body> <div id="body"><div id="leftDiv"><button><img src="image/left.PNG"/></button></div><div id="div1"> <ul><li><img src="image/1.JPG"/></li><li><img src="image/2.JPG"/></li><li><img src="image/3.JPG"/></li><li><img src="image/4.JPG"/></li> </ul></div><div id="rightDiv"><button><img src="image/right.PNG"/></button></div> </div> </body> </html>
希望本文所述对大家的javascript程序设计有所帮助。