Add regular expression tutorial (#2536)

* 添加正则表达教程

* Update free-programming-books-zh.md
pull/2538/head
邹成 7 years ago committed by eshellman
parent f8c380a415
commit 1778451c1b
  1. 1
      free-programming-books-zh.md

@ -216,6 +216,7 @@
### 正则表达式 ### 正则表达式
* [正则表达式-菜鸟教程](http://www.runoob.com/regexp/regexp-tutorial.html)
* [正则表达式30分钟入门教程](http://deerchao.net/tutorials/regex/regex.htm) * [正则表达式30分钟入门教程](http://deerchao.net/tutorials/regex/regex.htm)

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