Merge pull request #2 from zhongshan-zhang/master

修复IP正则表达式问题

Author: cdoco

README.md

@@ -76,7 +76,7 @@
 
 ## 域名
 
-`https://google.com`
+`https://google.com/`
 
 ```regex
 ^((http:\/\/)|(https:\/\/))?([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}(\/)
@@ -89,7 +89,7 @@
 `127.0.0.1`
 
 ```regex
-((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))
+((?:(?:25[0-5]|2[0-4]\d|[01]?\d?\d)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d?\d))
 ```
 
 ![ip](images/ip.png)
@@ -292,4 +292,4 @@
 
 MIT License. See the [LICENSE](LICENSE) file.
 
-**[⬆ top](#目录)**
+**[⬆ top](#目录)**