<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<p id="p1">5s后自动跳转到百度...</p>
<script type="text/javascript">
p1_ = document.getElementById('p1')
//时间
num = 5
timer1 = setInterval(function(){
num --
if(num >= 1){
p1_.innerText = num+'s后自动跳转到百度...'
}else{
clearInterval(timer1)
window.location.href = 'https://www.baidu.com'
}
}, 1000)
</script>
</body>
</html>
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