有什么问题请到评论中发表<br> <!-- http://www.mb5u.com --> <!-- bbs --> <!--把如下代码加入到<head>中区域中--> 注意:刷新几次你就可以看到效果了! <script LANGUAGE="JavaScript"> bg = new Array(2); bg[0] = 'http://www.mb5u.com/images/logo.gif' bg[1] = '.gif' bg[2] = 'http://www.mb5u.com/images/12090.gif' index = Math.floor(Math.random() * bg.length); document.write("<BODY BACKGROUND="+bg[index]+">"); </script>
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