摘要：鼠标悬停换图片或背景<script language="javascript">function over(id){document.getElementById(id).style.background='url(images/'+id+'on.jpg) center no-repeat';}function out(id){document.getElementById(id).s... 阅读全文

摘要：select top 5 * from table where id not in(select top 5 id from table order by id desc) order by id desc 阅读全文