<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>旋转图片</title>
<script type="text/javascript" src="coos.ui.rotate.js"></script>
</head>
<body>
<div id="testdiv1" style="z-index:4; position: absolute; top:50%; margin:0 auto; margin-top:-175px; left:50%; margin-left:-175px; 350px; height:350px; background-image:url(shuijing.png)">
</div>
<div id="testdiv" style="z-index:10; position: absolute; top:50%; margin:0 auto; margin-top:-175px; left:50%; margin-left:-175px;">
<img alt="" id="theimage" border="0" src="star.png" />
</div>
<script type="text/javascript">
var setTime;
window.onload = function () {
GetRTime();
}
function GetRTime() {
rotateLeft('theimage', 1); //顺时针1度旋转
var divObj = document.getElementById("testdiv");
var divObj_Width = document.getElementById("testdiv").offsetHeight;
var divObj_Height = document.getElementById("testdiv").offsetWidth;
divObj.style.marginLeft = "-" + (divObj_Width / 2) + "px";
divObj.style.marginTop = "-" + (divObj_Height / 2) + "px";
//rotateRight('theimage', 90); //逆时针90度旋转
setTime = setTimeout(function () { GetRTime() }, 100)
}
</script>
</body>
</html>
附件：https://files.cnblogs.com/wangbogo/%E6%97%8B%E8%BD%AC%E5%9B%BE%E7%89%87-%E6%B0%B4%E6%99%B6%E7%90%83.rar