Common regular expression

Mailbox

[email protected] Only English letters, numbers, underscores, full stops, and underscores are allowed

^[a-zA-Z0-9_-][emailprotected ][a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$

高子航[email protected] Chinese characters are allowed in the name, Letters, numbers, domain names only allow English domain names

^[A-Za -z0-9\u4e00-\u9fa5][email protected][a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$

Phone

< span>13012345678 phone number

^1(3|4|5|6|7|8|9)\d{9}$

XXX-XXXXXXX < code>XXXX-XXXXXXXX Fixed telephone

(\(\d{3,4}\)|\d{3,4}-|\s)?\d{8} 

domain name< /span>

https://google.com/

^((http:\/\/)|(https:\/\/))?([a-zA-Z0 -9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,6}(\/ )

IP

127.0.0.1

((?:(?:25[0-5]|2[0-4]\d|[01]?\ d?\d)\.){3}(?:25[0-5]|2[0-4]\d|[01]?\d?\d))

< p clas s="md-end-block md-p">

Account verification< /h2>

gaozihang_001 beginning with a letter, allowing 5-16 bytes, allowing Alphanumeric underline

^[a-zA-Z][a- zA-Z0-9_]{4,15}$

Character check span>

Chinese characters

Gao Zihang

^[ \u4e00-\u9fa5]{0,}$

English and numbers

^[ A-Za-z0-9]+$

all characters with a length of 3-20

^.{3,20}$

English characters

a string of 26 English letters

 ^[A-Za-z]+$

a string of 26 uppercase English letters

^[AZ]+$

a string of 26 lowercase English letters

^[az]+$

a string of numbers and 26 English letters

^[A-Za-z0-9]+$ 
 
From the number, 26 A string of English letters or underscores
 
^\w+$< /pre> 
 
Chinese, English , Numbers include underscores
 
^[\u4E00-\u9FA5A-Za-z0-9_] +$

Chinese, English, numbers but excluding symbols such as underscores
^[\ u4E00-\u9FA5A-Za-z0-9]+$

It is forbidden to enter characters containing %&',;=?$" 
[^%&',;=?$\x22]+ 

Do not enter characters containing ~
[^~\x22]+

Number Regular
Integer< /span>
^-?[1-9]\d*$
 
 
positive integer
 
^[1-9]\d*$

negative integer
^-[1-9]\d*$

Non-negative integer
 < pre class="md-fences md-end-block ty-contain-cm modeLo aded">^[1-9]\d*|0$ 

Non-positive integer
^-[1-9]\d*|0$

floating point
^-?([1-9]\d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0)$

positive Floating point
^[1-9]\d*\.\d*|0 \.\d*[1-9]\d*$

negative floating point
^-([1-9]\d*\.\d*|0\.\d*[1-9]\d*)$

Non-negative floating point numbers
^[1-9] \d*\.\d*|0\.\d*[1-9]\d*|0?\.0+|0$

non-positive floating point
^(-([1-9]\d*\.\d*|0\.\d*[1-9] \d*))|0?\.0+|0$
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Online regular test:
https://oktools.net/regex



Reprinted source:
https://github.com/cdoco/common- regex








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 ​​
 
online regular Test:
https://oktools.net/regex



Reprinted source:
https://github.com/cdoco/common-regex
 
 
 
 
 
 
 
 
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 ​​
 
Online regular test:
https://oktools.net/regex



 Reprinted source:
https://github.com/cdoco/common-regex


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<hr>


 ​​
 
Online regular test:
https://oktools.net/regex



Reprint source:
https://github.com/cdoco/common-regex







 



 
 
 
 


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Online regular test:
https://oktools.net/regex



Reprinted source:
https ://github.com/cdoco/common-regex
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
<hr>


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Online regular test:
https://oktools.net/regex

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Reprinted source:
https://github.com/cdoco/common-regex






 
 
 
 

 
 
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<hr>


 ​​
 
Online regular test:
https://oktools.net/regex



Reprinted source:
https://github.com/cdoco/co mmon-regex




 
 
 
 


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 ​​
 
Online regular test:
https://oktools.net/ regex



Reprint source:
https://github.com/cdoco/common-regex



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<hr>< /span>


 ​​
 
Online regular test:
https:/ /oktools.net/regex



Reprinted source:
https://github.com/cdoco/common-regex


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 ​​
 
Online regular test:
https://oktools.net/regex



Reprinted source:
https://github.com/cdoco/common-regex

					
							


								

									
									 common, expression, regular									
								


							

					
				
	
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