執行個體代碼一見：
複製代碼 代碼如下:<!DOCTYPE HTML>
<html>
<head>
<style type="text/css">
#main div{position:absolute;width:220px;height:150px;border:1px solid #999;}
</style>
<script type="text/javascript">
var a;
document.onmouseup = function() {
if (!a) return;
a = "";
};
document.onmousemove = function(d) {
if (!a) return;
d=d||event;
a.style.left = (d.clientX - b) + "px";
a.style.top = (d.clientY - c) + "px";
};
function $(o, e) {
a = o;
b = e.clientX - parseInt(a.style.left);
c = e.clientY - parseInt(a.style.top);
}
</script>
</head>
<body>
<div id="main">
<div style="left:100px;top:100px;background:#fc9;" onmousedown="$(this,event)">1</div>
<div style="left:400px;top:100px;background:#9cf;" onmousedown="$(this,event)">2</div>
<div style="left:700px;top:100px;background:#f9c;" onmousedown="$(this,event)">3</div>
<div style="left:100px;top:300px;background:#9fc;" onmousedown="$(this,event)">4</div>
<div style="left:400px;top:300px;background:#c9f;" onmousedown="$(this,event)">5</div>
<div style="left:700px;top:300px;background:#cf9;" onmousedown="$(this,event)">6</div>
</div>
</body>
</html>
效果： <br /><style type="text/css"> #main div{position:absolute;width:220px;height:150px;border:1px solid #999;} </style><p>123456<p>
