RE 汇总站点:
http://www.wellho.net/regex/index.html
比较好的C++ RE:
http://www.boost.org/libs/regex/doc/syntax.html
To see a world in a grain of sand.
And a heaven in a wild flower
Hold infinity in the palm of your hand.
And eternity in an hour
一花一世界
一沙一天堂
掌中握无限
霎那成永恒
