From 1778451c1b9f8f06f2fcf0fb29d7785358f09f89 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=82=B9=E6=88=90?= <1042071454@qq.com>
Date: Wed, 20 Sep 2017 09:10:33 -0500
Subject: [PATCH] Add regular expression tutorial  (#2536)
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* 添加正则表达教程

* Update free-programming-books-zh.md
---
 free-programming-books-zh.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/free-programming-books-zh.md b/free-programming-books-zh.md
index cef90d10..57cc109a 100644
--- a/free-programming-books-zh.md
+++ b/free-programming-books-zh.md
@@ -216,6 +216,7 @@
 
 ### 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)
 
 
-- 
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