http://blog.csdn.net/octverve/archive/2008/01/29/2071356.aspx

http://blog.csdn.net/octverve/archive/2008/01/29/2071356.aspx

http://www.2x2003.cn/article.asp?id=42

http://cn.aswing.org/

http://www.xiaos8.com/article.asp?id=105