Question

一个div显示3秒后让它隐藏怎么做？

如题！！！！！！！！！！！！！！！！！！！

Answer 1

<div id="k">测试</div>
<script>
setTimeout("document.getElementById('k').style.display='none'",3000);
</script>

Answer 2

<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript">
var countdown=3;
function settime(val) {
if (countdown == 0) {
$("#ids").attr("style","display:none");

} else {

countdown--;
}
setTimeout(function() {
settime(val)
},1000)
}
</script>
<div id="ids"></div>