abstract：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title></title> <script type="text/javascript" src="jquery-3.4.0.min.js&q
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript" src="jquery-3.4.0.min.js"></script>
<style type="text/css">
a{
float: left;
display: block;
margin: 50px;
width: 100px;
line-height: 100px;
text-align: center;
height: 100px;
color: #fff;
border-radius: 50px;
text-decoration:none;
}
</style>
<script type="text/javascript">
function aa(tag){
var len=document.getElementsByTagName(tag).length
for(var i=0;i<len;i++){
//获取定义i，产生reb颜色三个值
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(){
aa('a')
$('a').mouseover(function(){
$bg=$(this).css('backgroundColor')//获取随机产生的rgb颜色值并应用到光晕颜色
$(this).css('box-shadow','0px 0px 20px '+$bg)
$(this).css('border-radius','20px')
})
//形状改变
$('a').mouseleave(function(){
$(this).css('box-shadow','none')
$(this).css('border-radius','50px')
})
})
</script>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-05-08 09:08:55
Teacher's summary：完成的不错。每行js语句结束增加;号。继续加油