abstract：<!DOCTYPE html><html> <head> <meta charset="utf-8"> <title>阴影随机色</title> <script src="../Jquery/jquery-3.4.1.min.js"></script> &
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>阴影随机色</title>
<script src="../Jquery/jquery-3.4.1.min.js"></script>
<style>
a {
width: 100px;
height: 30px;
line-height: 50px;
float: left;
border-radius: 50px;
display: block;
color: #FF7F50;
text-decoration: none;
margin: 50px;
}
</style>
<script>
function color(tag){
var len = document.getElementsByTagName(tag).length
for (var i = 0; i < len; i++) {
document.getElementsByTagName(tag)[i].style.backgroundColor = 'rgb(' + Math.floor(Math.random() * 256) + ','+Math.floor(Math.random() * 256) + ','+Math.floor(Math.random() * 256) + ')'
}
}
$(document).ready(function() {
color('a');
$('a').mouseover(function() {
$bg = $(this).css('backgroundColor')
$(this).css('box-shadow', '0px'
'0px'
'20px' + $bg)
$(this).css('box-radius', '20px')
})
$('a').mouseleave(function() {
$bg = $(this).css('backgroundColor')
$(this).css('box-shadow', '0px'
'0px'
'20px' + $bg)
$(this).css('box-radius', '20px')
})
})
</script>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
<a href="#">5</a>
</body>
</html>
Correcting teacher：天蓬老师Correction time：2019-05-17 17:40:35
Teacher's summary：document.getElementsByTagName(tag)[i].style.backgroundColor = 'rgb(' + Math.floor(Math.random() * 256) + ','+Math.floor(Math.random() * 256) + ','+Math.floor(Math.random() * 256) + ')'
写这样长的代码, 不去创建变