麻煩大家?guī)兔纯礊槭裁纯偸菆?bào)錯 Uncaught ReferenceError: attr is not defined
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標(biāo)題文檔</title>
<style type="text/css">
*{padding:0;margin:0}
div{width:200px;
? ? ? height:80px;
?background:#FF3;
/*filter:alpha(opacity:30);*/
?opacity:0.3;
?margin:20px 0;
?
}
</style>
<script type="text/javascript">
window.onload=function(){
var div1 = document.getElementById('div1');
var div2 = document.getElementById('div2');
div1.onmouseover=function(){
startMove(div1,{width:400,height:160})
}
div1.onmouseout=function(){
? startMove(div1,{width:200,height:80})
}
}
/*var exm =document.getElementsByTagName('div');
for(var i=0;i<exm.length;i++)
{
? exm[i].timer=null;
? exm[i].onmouseover=function(){
?startMove(this,'width',400);}
? exm[i].onmouseout=function(){
?startMove(this,'width',200);}
}
}*/
function getStyle(obj,attr){
if(obj.currentStyle){
return obj.currentStyle[attr];}
else
{return getComputedStyle(obj,false)[attr];}?
}
? function startMove(obj,json){
?clearInterval(obj.timer);
?var iCur=parseInt(getStyle(obj,attr));
?obj.timer=setInterval(function(){
? for(var attr in json){
?var speed=0;
?if(json[attr]>iCur)
?{speed=Math.ceil((json[attr]-iCur)/8);}
?else if(json[attr]<iCur)
?{speed=Math.floor((json[attr]-iCur)/8);}
? ? ? if(iCur==json[attr])
?{clearInterval(obj.timer);}
?else
{obj.style[attr]=iCur+speed+'px';}
}
},30)
}
</script>
</head>
<body>
<div id="div1">
</div>
<div id="div2">
</div>
<div id="div3">
</div>
</body>
</html>
2016-03-31
把 ?var iCur=parseInt(getStyle(obj,attr)); ? 放在for循環(huán)里試試?
你的attr是在for循環(huán)里定義的
2016-03-30
沒有定義，肯定報(bào)錯啊
2016-03-30
var iCur=parseInt(getStyle(obj,attr));的attr哪里來的