使用方法：下载jquery-1.9.1.js，然后设置CSS，图片文件放在images/new_feed/目录下，图片命名格式为bg_x.jpg,修改随机数产生范围
一、CSS代码
复制代码 代码如下:
<style>
body{
padding:0;
background-attachment: fixed;
background-clip: border-box;
background-color: #666666;
background-origin: padding-box;
background-position: center top;
background-repeat: no-repeat;
background-size: cover;
width: 100%;
background-image:url("");}
</style>
body{
padding:0;
background-attachment: fixed;
background-clip: border-box;
background-color: #666666;
background-origin: padding-box;
background-position: center top;
background-repeat: no-repeat;
background-size: cover;
width: 100%;
background-image:url("");}
</style>
二、Jquery代码
复制代码 代码如下:
<script type="text/javascript">
$(document).ready(function(){
var random_bg=Math.floor(Math.random()*6+1);
var bg='url(images/new_feed/bg_'+random_bg+'.jpg)';
$("body").css("background-image",bg);
});
</script>
$(document).ready(function(){
var random_bg=Math.floor(Math.random()*6+1);
var bg='url(images/new_feed/bg_'+random_bg+'.jpg)';
$("body").css("background-image",bg);
});
</script>