URL

http://ilinux.javaeye.com/blog/180204

http://hi.baidu.com/mypleasure/blog/item/9cc95360ce0923da8cb10dfb.html



http://blog.csdn.net/zhuzhzh/archive/2006/09/07/1189799.aspx

http://www.ibm.com/developerworks/cn/linux/l-cn-gdbmp/index.html

http://blog.chinaunix.net/u/15071/showart_94429.html