<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>自动跳转</title>
<style>
p{
text-align: center;
margin-top: 200px;
}
#num{
color: red;
}
</style>
</head>
<body>
<p><span id="num">5</span>秒后跳转</p>
<script>
var number=5;
var num = document.getElementById("num");
function fun() {
if (--number == 0) {
clearInterval(id);
location.href="http://ntlias-stu.boxuegu.com/#/login";
}
num.innerHTML=number+"";
}
var id=setInterval(fun,1000);
</script>
</body>
</html>