正则表达式基础
http://www.cnblogs.com/youring2/archive/2009/11/07/1597786.html
http://www.cnblogs.com/jara/p/3420502.html
http://blog.csdn.net/spch2008/article/details/50574059
正则表达式工具http://tool.oschina.net/regex/
正则表达式示例http://www.cnblogs.com/zysbk/archive/2013/01/22/2847364.html
