area.innerHTML+=area.innerHTML;是什么意思?
<script>
var ?area=document.getElementById(“moocBox”);
var ?LiHeight=24;
area.innerHTML+=area.innerHTML;
area.scrollTop=0;
function scrollUp(){
???? area.scrollTop++;
???? if(area.scrollTop%LiHeight==0){
???? clearInterval(time);
}
}
Var time=setInterval(“scrollUp”,50);
</script>
2017-03-05
克隆一個一模一樣的內容? 實現無縫隙滾動