????：<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>獲取隨機(jī)顏色</title> <script type="
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>獲取隨機(jī)顏色</title>
<script type="text/javascript" src="jquery-3.3.1.js"></script>
<style>
a{
float: left;
display: block;
margin: 50px;
width: 100px;
height: 100px;
line-height: 100px;
text-align: center;
color: #fff;
border-radius: 50px;
text-decoration: none;
}
</style>
<script>
$(document).ready(function () {
//改變標(biāo)簽的背景色
function change_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)+')';
}
//給隨機(jī)數(shù)
$mt=Math.floor(Math.random()*50);
// alert($mt);
$('button').click(function () {
$('a').html($mt);
})
}
change_color('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 () {
change_color('a');
})
})
</script>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
<hr/>
<button>點(diǎn)擊改變</button>
</body>
</html>
?? ???：滅絕師太?? ??：2019-03-06 09:17:48
???? ??：完成的不錯(cuò),必要的地方可以帶上備注,便于復(fù)習(xí)!繼續(xù)加油!