為什么我的回掉函數(shù)用不了？
move.js
function?getStyle(obj,attr){
if(obj.currentStyle){
return?obj.currentStyle[attr];
}else{
return?getComputedStyle(obj,false)[attr];
}
}
function?starMove(obj,attr,iTarget,fn){
clearInterval(obj.timer);
obj.timer?=?setInterval(function(){
var?icur?=?0;
if(attr?==?'opacity'){
icur?=?Math.round(parseFloat(getStyle(obj,attr))*100);
}else{
icur?=?parseInt(getStyle(obj,attr));
}
var?speed?=?(iTarget?-?icur)/8;
speed?=?speed>0?Math.ceil(speed):Math.floor(speed);
if(icur?==?iTarget){
clearInterval(obj.timer);
if(fn){
fn();
}
}else{
if(attr?==?'opacity'){
obj.style.filter?=?'alpha(opacity:"+(icur+speed)+")';
obj.style.opacity?=?(icur+speed)/100;
}else{
obj.style.width?=?icur?+?speed?+?'px';
}
}
},30)
}html
<!DOCTYPE?html>
<html>
<head>
<meta?charset="UTF-8">
<title>Document</title>
<style?type="text/css">
*{
margin:?0;
padding:?0;
}
ul{
margin-top:?20px;
}
ul,li{
list-style:?none;
}
ul?li{
width:200px;
height:?100px;
background:?red;
margin-bottom:?20px;
filter:alpha('opacity':30);
opacity:?0.3;
border:?1px?solid?#ccc;?
}
</style>
<script?type="text/javascript"?src="js/move.js"></script>
<script?type="text/javascript">
window.onload?=?function(){
var?Li?=?document.getElementById('li1');
Li.onmouseover?=?function(){
starMove(Li,'width',400,function(){
starMove(Li,'height',200);
});
}
}
</script>
</head>
<body>
<ul>
<li?id="li1"></li>
</ul>
</body>
</html>調(diào)用完一次之后無法調(diào)用第二次。
2015-12-31
我也遇到相同的問題？？？
2015-10-15
知道了。原來是js那里寫錯了
2015-10-15
就是調(diào)用starMove一次把寬度改變后無法繼續(xù)調(diào)用starMove改變高度。