随机获取颜色及改变a链接内容
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>获取随机色</title>
<script type="text/javascript" src="jquery-3.3.1.min.js"></script>
<style>
body{width: 800px;text-align: center;margin: 10px auto;}
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;
}
div{width: 100px;height: 50px;margin: 50px auto;}
button{display: block;width: 100%;height: 100%;line-height: 50px;
}
</style>
</head>
<body>
<a href="#">1</a>
<a href="#">2</a>
<a href="#">3</a>
<a href="#">4</a>
<div><button type="button">点我变色</button></div>
</body>
<script>
$(function(){
myChange();
})
function myChange(){$.each($('a'),function(){
var randomColor = 'rgb('+Math.floor(Math.random()*256)+','+Math.floor(Math.random()*256)+','+Math.floor(Math.random()*256)+')';
var randomNum =Math.floor(Math.random()*101);
$(this).css('backgroundColor',randomColor);
$(this).text(randomNum);
})}
$('button').click(myChange);
</script>
</html>------效果图--------
总结：
jquery和js可以实现混编，jquery的$.each()更为简单