abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>手风琴</title> <link rel="stylesheet&q
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>手风琴</title>
<link rel="stylesheet" href="static/css/style4.css">
<link rel="stylesheet" href="static/font-awesome/css/font-awesome.css">
<link rel="shortcut icon" href="static/images/logo1.png" type="image/x-icon">
<script type="text/javascript" src="static/js/jquery.js"></script>
</head>
<body>
<!-- <div></div>
<a href="" id="top">111</a>
<div></div>
<a href="#top" >返回顶部</a> -->
<a href=""></a>
<div>网页内容</div>
<p id="back"><a href="javascript:;"><span class="fa fa-arrow-circle-up"></span><br>返回顶部</a></p>
<script type="text/javascript">
$(function(){
$(window).scroll(function(){
if($(window).scrollTop()>100){
$("#back").fadeIn(300);
}else{
$("#back").fadeOut(300);
}
})
$("#back").click(function(){
$("html").animate({"scrollTop":0},500)
})
})
</script>
</body>
</html>
Correcting teacher：灭绝师太Correction time：2018-11-16 09:14:24
Teacher's summary：我看到你学习的进度比较快，要确保都搞懂奥，不懂就问