http://www.111cn.net/database/mysql/46350.htm
http://g.kehou.com/t1032617472.html
http://www.cnblogs.com/morningwang/archive/2009/01/02/1367277.html
http://www.jb51.net/article/28228.htm
Sql 高效分页
原文：http://www.cnblogs.com/youxin/p/3546590.html
