javascript_蛇

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd"><html xmlns="http://www.w3.org/1999/xhtml">    <head>        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />        <title>New Web Project</title>        <style type="text/css">            div{                width: 15px;                height: 15px;                background:blue;                position: absolute;            }            body{                height: 800px;            }        </style>    </head>    <script type="text/javascript">        window.onload=function(){             var i=0;            document.onmouseover=function(ev){                var oEvent=ev||event;                var aDiv=document.getElementsByTagName("div");                var oScrollX=document.documentElement.scrollX||document.body.scrollX;                var oScrollY=document.documentElement.scrollY||document.body.scrollY;                for(i=aDiv.length-1;i>0;i--){                    aDiv[i].style.left=aDiv[i-1].style.left;                    aDiv[i].style.top=aDiv[i-1].style.top;                }                aDiv[0].style.left=oEvent.clientX+"px";                aDiv[0].style.top=oEvent.clientY+"px";            };        };            </script>    <body>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div><div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>                <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>        <div>                    </div>    </body></html>
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