<!DOCTYPE?html>
<html>
<head>
<meta?charset="UTF-8">
<title>Document</title>
<style?type="text/css">
*{margin:0;padding:0;}
ul,li{
list-style:?none;
}
ul?li{
width:?200px;
height:?100px;
background:?red;
margin-bottom:?20px;
border:?4px?solid?black;
}
</style>
<script?type="text/javascript">
window.onload=function(){
var?li1?=?document.getElementById('li1');
var?li2?=?document.getElementById('li2');
li1.timer=null;
li2.timer=null;
li1.onmouseover=function(){
startMove(this,'width',400);
li1.onmouseout=function(){
startMove(this,'width',200);
}
li2.onmouseover=function(){
startMove(this,'height',400);
li2.onmouseout=function(){
startMove(this,'height',100);
}
}
function?getStyle(obj,attr){
????????????if(obj.currentStyle){
?????????????????return?obj.currentStyle[attr];
??????????????}
????????????else{
?????????????????return?getComputedStyle(obj,false)[attr];
????????????????}
????????????}
?
function?startMove(obj,attr,iTarget){
clearInterval(obj.timer);
obj.timer=setInterval(function(){
var?icur=parseInt(getStyle(obj,attr));
var?speed?=?(iTarget-icur)/8;
speed?=?speed>0?Math.ceil(speed):Math.floor(speed);
if(iTarget?==?icur){
clearInterval(obj.timer)
}
else{
obj.style[attr]=icur+speed+'px';
}
},30);
}
</script>
</head>
<body>
<ul>
<li?id="li1"></li>
<li?id="li2"></li>
</ul>
</body>
</html>
為什么startMove()沒有觸發(fā)，實在沒看出來問題出在哪了
gothClaudia
2016-01-21 17:36:10
