鼠標(biāo)多次onmouseout時會加多個計時器，再onmouseout中加計時器前先清了計時器，但是并沒什么用，是怎么回事？
<script type="text/javascript">
var area = document.getElementById("moocbox");
var con1 = document.getElementById("con1");
var con2 = document.getElementById("con2");
con2.innerHTML = con1.innerHTML;
var iLiHeight = 24;
var scroll = setInterval("scrollup()",50);
function scrollup(){
area.scrollTop++;
if(area.scrollTop % iLiHeight == 0){
clearInterval(scroll);
setTimeout("startmove()",2000);
}
if(area.scrollTop >= con1.offsetHeight){
area.scrollTop = 0;
}
}
function startmove(){
scroll = setInterval("scrollup()",50);
}
area.onmouseover = function(){
clearInterval(scroll);
}
area.onmouseout = function(){
clearInterval(scroll);//先清計時器
scroll = setInterval(scrollup,50);
}
</script>
2016-11-01
兄弟。。親測 你這個沒問題