abstract：<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>获取随机色</title> <script type="
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>获取随机色</title>
<script type="text/javascript" src="jquery-3.4.0.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++){
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')
$(this).css('box-shadow','0px 0px 20px '+$bg)
$(this).css('border-radius','20px ')
})
$('a').mouseleave(function(){
$(this).css('box-shadow','none')
$(this).css('border-radius','50px ')
})
})
</script>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
</body>
</html>
Correcting teacher：西门大官人Correction time：2019-04-20 13:32:23
Teacher's summary：最好写一下随机色的实现原理。直接拷贝课件源码没意义