正则表达式

参考：

http://blog.csdn.net/lxcnn/

http://www.cnblogs.com/ayqy/p/3879397.html

http://www.cnblogs.com/AaronYang/p/3979710.html

http://www.cnblogs.com/coco1s/p/4008955.html

http://www.cnblogs.com/Zjmainstay/p/my-regexp.html

http://www.cnblogs.com/xjchenhao/p/4016515.html

http://www.cnblogs.com/dwlsxj/p/Regex.html#!comments

http://www.cnblogs.com/dwlsxj/p/Reg.html

http://www.cnblogs.com/dwlsxj/p/Regex-3.html