<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>无标题页</title>
<style type="text/css">
*
{
margin:0px;
padding:0px;
}
ul
{
width:360px;
position:absolute;
left:350px;
top:100px;
}
ul li
{
list-style:none;
float:left;
margin:10px;
}
div
{
width:100px;
height:100px;
background:#4AA0EF;
z-index:1px;
}
</style>
<script src="../ajax/Move.js" type="text/javascript"></script>
<script type="text/javascript">
window.onload = function(){
var oUl = document.getElementById("main");
var oLi = oUl.getElementsByTagName("li");
var mixZIndex= 2;
for(var i=0;i<oLi.length;i++)
{
//布局转换 (第一步)
oLi[i].style.left = oLi[i].offsetLeft+"px";
oLi[i].style.top = oLi[i].offsetTop +"px";
}
for(var i=0;i<oLi.length;i++)
{
//将li绝对定位 (第二步)
oLi[i].style.position="absolute";
}
//备注：
//第一步与第二步不能写在一个for循环之中
//不然li不能起到绝对定位作用效果
for(var i=0;i<oLi.length;i++)
{
var oDiv = oLi[i].getElementsByTagName("div")[0];
mixZIndex++;
oDiv.style.zIndex = mixZIndex;
oDiv.onmouseover = function(){
//alert(2);
move(this,{height:200,width:200,marginLeft:-50,marginTop:-50});
};
oDiv.onmouseout = function(){
move(this,{height:100,width:100,marginLeft:0,marginTop:0});
};
}
}
</script>
</head>
<body>
<ul id="main">
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
<li>
<div></div>
</li>
</ul>
</body>
</html>
move.js
//运动框架
//链式运动
function move(obj,json,fun)
{
//先关闭定时器
clearInterval(obj.timer);
obj.timer = setInterval(function(){
//是否停止运行
var isStop = true;
for(var attr in json)
{
//1、当前值
var current = 0;
//目标值
var target = json[attr];
//判断是否是透明度属性
if(attr=="opacity")
{
current = parseInt(parseFloat(getStyle(obj,attr))*100);
}
else
{
current = parseFloat(getStyle(obj,attr));
}
//2、计算速度
var speed = (target-current)/6;
//如果速度大于0 向上取整 如果速度小于0 向下取整
speed = speed>0 ? Math.ceil(speed) : Math.floor(speed);
//计算运行结果
if(attr=="opacity")
{
//透明度兼容性
obj.style.filter="alpha(opacity:"+(current + speed)+")";
obj.style.opacity = (current + speed)/100;
}
else
{
//计算运动结果值
obj.style[attr] = current + speed +"px";
}
//判断是否所有属性都运动完成
if(current!=target)
{
isStop = false;
}
}
//3、关闭定时器
//所有属性运动完成 就闭关定时器
if(isStop)
{
//关闭定时器
clearInterval(obj.timer);
//链式运动
if(fun)
{
fun();
}
}
},30);
}
//对象style属性值
function getStyle(obj,attr)
{
if(obj.currentStyle)
{
return obj.currentStyle[attr];
}
else
{
return getComputedStyle(obj,null)[attr];
}
}
时间： 2024-10-11 22:09:08