<html>
<head>
<meta charset=UTF-8>
<title>YuGiOh</title>
<style type="text/css">
#div {
position: absolute
top: 50px
left: 300px
width: 300px
height: 300px
line-height: 300px
text-align: center
border: 1px solid black
}
</style>
<script type="text/javascript" src="jquery-1.8.0.min.js"></script>
<script type="text/javascript">
var rotateHTML5 = function (limit)
{
var reg = /(rotate\([\-\+]?((\d+)(deg))\))/i
var wt = div.style['-webkit-transform'], wts = wt.match (reg)
var $2 = RegExp.$2
console.log ($2)
div.style['-webkit-transform'] = wt.replace ($2, parseFloat (RegExp.$3) + limit + RegExp.$4)
}
var rotateIE = function (obj)
{
var d = !!obj.d ? obj.d : 1
var r = d * Math.PI / 180
costheta = Math.cos (r)
sintheta = Math.sin (r)
obj.style.filter = "progid:DXImageTransform.Microsoft.Matrix()"
var item = obj.filters.item (0)
var width = obj.clientWidth
var height = obj.clientHeight
item.DX = -width / 2 * costheta + height / 2 * sintheta + width / 2
item.DY = -width / 2 * sintheta - height / 2 * costheta + height / 2
item.M11 = costheta
item.M12 = -sintheta
item.M21 = sintheta
item.M22 = costheta
obj.timer = setTimeout (function ()
{
var dx = d + 1
dx = dx > 360 ? 1 : dx
obj.d = dx
rotate (obj, dx)
}, 30)
}
var start = function ()
{
if (!!div.interval)
{
clearInterval (div.interval)
delete div.interval
}
else
{
div.interval = setInterval (function ()
{
/.*webkit.*/i.test (navigator.userAgent) ? rotateHTML5 (1) : rotateIE (div)
}, 30)
}
}
</script>
</head>
<body>
<button onclick="start()">rotate</button>
<div id="div" style="border-radius: 90px -webkit-transform: rotate(10deg)">ROTATE</div>
</body>
</html>
<!DOCTYPE HTML><html>
<head>
<meta charset=UTF-8>
<title>YuGiOh</title>
<style type="text/css">
#div {
position: absolute
top: 50px
left: 300px
width: 300px
height: 300px
line-height: 300px
text-align: center
border: 1px solid black
}
</style>
<script type="text/javascript">
var rotateHTML5 = function (limit)
{
var reg = /(rotate\([\-\+]?((\d+)(deg))\))/i
var wt = div.style['-webkit-transform'], wts = wt.match (reg)
var $2 = RegExp.$2
console.log ($2)
div.style['-webkit-transform'] = wt.replace ($2, parseFloat (RegExp.$3) + limit + RegExp.$4)
}
var rotateIE = function (obj)
{
var d = !!obj.d ? obj.d : 1
var r = d * Math.PI / 180
costheta = Math.cos (r)
sintheta = Math.sin (r)
obj.style.filter = "progid:DXImageTransform.Microsoft.Matrix()"
var item = obj.filters.item (0)
var width = obj.clientWidth
var height = obj.clientHeight
item.DX = -width / 2 * costheta + height / 2 * sintheta + width / 2
item.DY = -width / 2 * sintheta - height / 2 * costheta + height / 2
item.M11 = costheta
item.M12 = -sintheta
item.M21 = sintheta
item.M22 = costheta
obj.timer = setTimeout (function ()
{
var dx = d + 1
dx = dx > 360 ? 1 : dx
obj.d = dx
rotate (obj, dx)
}, 30)
}
var start = function ()
{
if (!!div.interval)
{
clearInterval (div.interval)
delete div.interval
}
else
{
div.interval = setInterval (function ()
{
/.*webkit.*/i.test (navigator.userAgent) ? rotateHTML5 (1) : rotateIE (div)
}, 30)
}
}
</script>
</head>
<body>
<button onclick="start()">rotate</button>
<div id="div" style="border-radius: 90px -webkit-transform: rotate(10deg)">ROTATE</div>
</body>
</html>
js控制div旋转的例子：<DIV id=aDiv style="WIDTH: 70pxPOSITION: absoluteHEIGHT: 70px">
<IMG width=70 height=70 src="http://www.smallrain.net/jsimg/images/pic.gif" />//假如这个图
<DIV>
//使角度转起来
var angle = 0
function doRotate() {
//检查并确保角度值在0到360之间
if(angle>360) angle-=360
//使角度增加
angle+=15
//do rotation
rotate("aDiv",angle)
//定位旋转中心
var el = document.getElementByIdx_x_x("aDiv")//C#中要马上设位置.
el.style.top = 25 - (el.offsetHeight/2)//父元素的高度/2-旋转元素高度/2,还需注意旋转是同父元素的LOP,和left上关的,请上机测试
el.style.left = 25 - (el.offsetWidth/2)//父元素的宽度/2-旋转元素度/2
//循环
setTimeout("doRotate()",20)
}
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