下面这段代码到底哪里错了，为什么它不会停止，而是一直滑动，求解
window.onload=function(){
var check=document.getElementById("check");
check.onmouseover=function(){
startMove(1,0);}
check.onmouseout=function(){
startMove(1,-100);}
}
var time=null;
function startMove(speed,target){
var box=document.getElementById("box");
clearInterval(time);
time=setInterval(function(){
if(box.offsetLeft==target)
clearInterval(time);
else
box.style.left=box.offsetLeft+speed+"px";
},30);
}
2016-06-04
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
*{
margin: 0;
padding: 0;
}
a{
text-decoration: none;
}
div {
width:475px;
background:#eeeeee;
margin:auto;
text-align: center;
}
#main {
display: block;
margin:auto;
}
#main li {
display: inline;
}
li:nth-child(2){
position: relative;
}
#child {
position: absolute;
top: 100%;
left: 0;
display: none;
}
li:nth-child(2):hover #child{
display: block;
background:#eeeeee;
}
</style>
</head>
<div>
<ul id="main">
<li >
<a href="#">首页</a>
</li>
<li>
<a href="#">课程大厅</a>
<ul id="child">
<li><a href="#">javaScript</a></li>
<li><a href="#">JQuery</a></li>
</ul>
</li>
<li><a href="#">学习中心</a></li>
<li><a href="#">经典案例</a></li>
<li><a href="#">关于我们</a></li>
</ul>
</div>
</body>
</html>window.onload=function(){
var check=document.getElementById("check");
check.onmouseover=function(){
startMove(1,0);}
check.onmouseout=function(){
startMove(1,-100);}
}
var time=null;
function startMove(speed,target){
var box=document.getElementById("box");
clearInterval(time);
time=setInterval(function(){
if(box.offsetLeft==target){
clearInterval(time);}
else{
box.style.left=box.offsetLeft+speed+"px";}
},30);
}
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