为什么在滑出时会来回的晃动
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
*{margin:0;padding:0;}
#div1{width:100px;
height:300px;
background:#98fb98;
left:-100px;
position:relative;
}
span{width:30px;height:100px;left:100px;background: #0000ff;position:absolute;}
</style>
<script type="text/javascript">
window.onload=function(){
var timer
var odiv=document.getElementById('div1');
odiv.onmouseover=function(){
startmove(10,0);
}
odiv.onmouseout=function(){
startmove(-10,-100);
}
}
function startmove(speen,itarget){
var odiv=document.getElementById('div1');
clearInterval(timer);
var timer=setInterval(function(){
if(odiv.offsetLeft==itarget){
clearInterval(timer);
}
else{
odiv.style.left=odiv.offsetLeft+speen+'px';
}
}, 100)
}
</script>
</head>
<body>
<div id="div1"><span>分享</span></div>
</body>
</html>不断的加10减10 一直晃动停不下来