abstract：<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Document</title> <script src="https://code.jquery.com
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<style type="text/css">
a{
float: left;
display: block;
margin: 50px;
line-height: 100px;
text-align: center;
width: 100px;
height: 100px;
color: #fff;
border-radius: 50%;
text-decoration: none;
}
</style>
<script type="text/javascript">
function aa(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)+')'
}
}
$(function(){
aa('a')
$('a').mouseover(function(){
$bg=$(this).css('backgroundColor')
$(this).css('box-shadow','0px 0px 20px '+$bg)
$(this).css('border-radius','20px')
})
$('a').mouseleave(function(){
$(this).css('box-shadow','none')
$(this).css('border-radius','50%')
})
})
</script>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
</body>
</html>的厮杀搜得到史派克
Correcting teacher：灭绝师太Correction time：2018-11-11 15:32:10
Teacher's summary：可以尝试多种方法哦，不要每次代码都跟老师一致……