<html>
<head>
<title></title>
<script type="text/javascript">
document.onmousemove = function () {
var x = window.event.clientX;
var y = window.event.clientY;
var divFly = document.getElementById("divFly");
if (!divFly) {//判断图片是否加载完了，如果没加载
return;
}
divFly.style.left = x;
divFly.style.top = y;
};
</script>
</head>
<body>
<div >
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