[链接]位图文件结构

http://hi.baidu.com/initial5/blog/item/01bfbacbd2bad8fc52664fac.html

http://www.image2003.com/zxzz/zazhi/1/4.html

http://fantinylove.spaces.live.com/blog/cns!145FC4892CFC5BFC!119.entry