jQuery获取随机色作业
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>获取随机色、随机值</title>
<script type="text/javascript" src="jquery.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;
}
button{
width: 100px;
height: 100px;
margin-top: 50px;
box-shadow: 10px 10px 20px pink;
/*border: 1px solid lightblue;
background: lightblue;*/
border-radius: 35px;
}
</style>
<script type="text/javascript">
//改变标签的背景颜色
function changeColor(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(){
changeColor('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 ')
})
$('button').click(function(){
changeColor('a')
$('#one').text(Math.floor(Math.random()*100))
$('#two').text(Math.floor(Math.random()*100))
$('#three').text(Math.floor(Math.random()*100))
$('#four').text(Math.floor(Math.random()*100))
})
$('#one').text(Math.floor(Math.random()*100))
$('#two').text(Math.floor(Math.random()*100))
$('#three').text(Math.floor(Math.random()*100))
$('#four').text(Math.floor(Math.random()*100))
})
</script>
</head>
<body>
<a id='one' href="#"></a>
<a id='two' href="#"></a>
<a id='three' href="#"></a>
<a id='four' href="#"></a>
<button>改变颜色与值</button>
</body>
</html>