<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>自定义运动框架02</title>
<style type="text/css">
*{margin: 0;padding: 0;}
#div1{
width: 200px;
height: 200px;
background: red;
background: red;
filter: alpha(opacity:30);
opacity: 0.3;
}
</style>
<script type="text/javascript">
window.onload+function(){
var odiv=document.getElementById("div1");
odiv.onmouseover=function(){
starMove(100);
};
odiv.onmouseout=function(){
starMove(30);
};
};
var timer=null;
var alpha=30;
function starMove(morm){
var odiv=document.getElementById("div1");
clearInterval(timer);
timer=setInterval(function(){
var speed=0;
if (speed>morm) {
speed=-10;
} else{
speed=10;
};
if(alpha==morm){
clearInterval(timer);
}else{
alpha+=speed;
odiv.style.filter="alpha(opactiy:"+alpha+")";
odiv.style.opacity=alpha/100;
};
},30);
};
</script>
</head>
<body>
<div id="div1"></div>
</body>
</html>第38行应该是alpha与morm比较
window.onload+function(){
21 行 写错了 ，大兄弟