Collection of commonly used regular expressions
Updated: June 11, 2015 09:17:14 Submission: hebedich
Regularity is too difficult to learn and easy to forget. Many friends who don’t know the rules often search online for a long time when they need to use regularity to verify data, but the results still do not meet the requirements. So I have recently sorted out some regular expressions commonly used in development and share them here. Make a record by yourself and give your friends a reference.
Collection of commonly used regular expressions
1.Verify the number：
Only input1Numbers
expression ^\d$
describe match一Numbers
Matching examples 0,1,2,3
不Matching examples
2.Only inputnNumbers
expression ^\d{n}$ For example^\d{8}$
describe match8Numbers
Matching examples 12345678,22223334,12344321
不Matching examples
3.Only input至少nNumbers
expression ^\d{n,}$ For example^\d{8,}$
describe match最少nNumbers
Matching examples 12345678,123456789,12344321
不Matching examples
4.Only inputmarrivenNumbers
expression ^\d{m,n}$ For example^\d{7,8}$
describe matchmarrivenNumbers
Matching examples 12345678,1234567
不Matching examples 123456,123456789
5.Only inputnumber
expression ^[0-9]*$
describe match任意Numbers
Matching examples 12345678,1234567
不Matching examples E,Qingqing Yue'er
6.Only input某个区间number
expression ^[12-15]$
describe match某个区间ofnumber
Matching examples 12,13,14,15
不Matching examples
7.Only input0and non0The number that starts
expression ^(0|[1-9][0-9]*)$
describe Can be0，第一Numbers不能为0，There can be any number in0
Matching examples 12,10,101,100
不Matching examples 01,Qingqing Yue'er,/21aspnet
8.Only input实数
expression ^[-+]?\d+(\.\d+)?$
describe match实数
Matching examples 18,+3.14,-9.90
不Matching examples .6,33s,67-99
9.Only inputnPositive real number of decimal places
expression ^[0-9]+(.[0-9]{n})?$by^[0-9]+(.[0-9]{2})?$As an example
describe matchnPositive real number of decimal places
Matching examples 2.22
不Matching examples 2.222,-2.22,/21aspnet
10.Only inputm-nPositive real number of decimal places
expression ^[0-9]+(.[0-9]{m,n})?$by^[0-9]+(.[0-9]{1,2})?$As an example
describe matchmarrivenPositive real number of decimal places
Matching examples 2.22,2.2
不Matching examples 2.222,-2.2222,/21aspnet
11.Only input非0Positive integer
expression ^\+?[1-9][0-9]*$
describe match非0Positive integer
Matching examples 2,23,234
不Matching examples 0,-4,
12.Only input非0Negative integers
expression ^\-[1-9][0-9]*$
describe match非0Negative integers
Matching examples -2,-23,-234
不Matching examples 0,4,
13.Only inputnCharacters
expression ^.{n}$ by^.{4}$As an example
describe matchnCharacters，Note that Chinese characters are counted only1Characters
Matching examples 1234,12we,123clear,Qingqing Yue'er
不Matching examples 0,123,123www,/21aspnet/
14.Only input英文字符
expression ^.[A-Za-z]+$As an example
describe match英文字符，Arbitrary case
Matching examples Asp,WWW,
不Matching examples 0,123,123www,/21aspnet/
15.Only input大写英文字符
expression ^.[A-Z]+$As an example
describe match英文大写字符
Matching examples NET,WWW,
不Matching examples 0,123,123www,
16.Only input小写英文字符
expression ^.[a-z]+$As an example
describe match英文大写字符
Matching examples asp,csdn
不Matching examples 0,NET,WWW,
17.Only input英文字符+number
expression ^.[A-Za-z0-9]+$As an example
describe match英文字符+number
Matching examples 1Asp,W1W1W,
不Matching examples 0,123,123,www,/21aspnet/
18.Only input英文字符/number/Underline
expression ^\w+$As an example
describe match英文字符或number或Underline
Matching examples 1Asp,WWW,12,1_w
不Matching examples 3#,2-4,w#$,/21aspnet/
19.Example password
expression ^.[a-zA-Z]\w{m,n}$
describe match英文字符开头ofm-nBit字符且只能number字母或Underline
Matching examples
不Matching examples
20.Verify the capital letter
expression \b[^\Wa-z0-9_][^\WA-Z0-9_]*\b
describe The first letter can only be capitalized
Matching examples Asp,Net
不Matching examples /21aspnet/
21.Verify the URL（bring?id=Chinese）VS.NET2005No such function
expression ^http:\/\/([\w-]+(\.[\w-]+)+(\/[\w- .\/\?%&=\u4e00-\u9fa5]*)?)?$
describe verifybring?id=Chinese
Matching examples /21aspnet/,
?id=Qingqing Yue'er
不Matching examples
22.Verify Chinese characters
expression ^[\u4e00-\u9fa5]{0,}$
describe Only Chinese characters
Matching examples Qingqing Yue'er
不Matching examples /21aspnet/
23.verifyQQNumber
expression [0-9]{5,9}
describe 5-9A bitQQNumber
Matching examples 10000,123456
不Matching examples 10000w,/21aspnet/
24.verify电子邮件（verifyMSNNumber一样）
expression \w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
describe NoticeMSN用非邮箱也可by
Matching examples aaa@
不Matching examples 111@1. /21aspnet/
25.verify身份证Number（Rough test，最好服务器端调类库再细verify）
expression ^[1-9]([0-9]{16}|[0-9]{13})[xX0-9]$
describe
Matching examples 15or18A bit身份证Number，支持bringXof
不Matching examples /21aspnet/
26.verify手机Number（Include159，不Include小灵通）
expression ^13[0-9]{1}[0-9]{8}|^15[9]{1}[0-9]{8}
describe Include159of手机Number130-139
Matching examples 139XXXXXXXX
不Matching examples 140XXXXXXXX,/21aspnet/
27.verify电话Number码Number（Very complicated，VS.NET2005给of是错of）
expression（Improper） Plan 1 ((\(\d{3}\)|\d{3}-)|(\(\d{4}\)|\d{4}-))?(\d{8}|\d{7})
Plan 2 (^[0-9]{3,4}\-[0-9]{3,8}$)|(^[0-9]{3,8}$)|(^\([0-9]{3,4}\)[0-9]{3,8}$)|(^0{0,1}13[0-9]{9}$) 支持手机Number但也Improper
describe Shanghai：02112345678 3+8Bit
Shanghai：021-12345678
Shanghai：(021)-12345678
Shanghai：(021)12345678
Zhengzhou：03711234567 4+7Bit
Hangzhou：057112345678 4+8Bit
还有bring上分机Number，国家码of情况
由于情况非常复杂所by不建议前台做100%verify，arrive目前为止似乎也没有谁能写一个Include所有of类型，其实有很多情况本身就是矛盾of。
如果谁有更好ofverify电话of请留言
Matching examples
不Matching examples
28.verify护照
expression (P\d{7})|G\d{8})
describe verifyP+7NumbersandG+8Numbers
Matching examples
不Matching examples Qingqing Yue'er,/21aspnet/
29.verifyIP
expression ^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$
describe verifyIP
Matching examples 192.168.0.1 222.234.1.4
不Matching examples
30.verify域
expression ^[a-zA-Z0-9]+([a-zA-Z0-9\-\.]+)?\.s|)$
describe verify域
Matching examples
不Matching examples 192.168.0.1
31.verify信用Card
expression ^((?:4\d{3})|(?:5[1-5]\d{2})|(?:6011)|(?:3[68]\d{2})|(?:30[012345]\d))[ -]?(\d{4})[ -]?(\d{4})[ -]?(\d{4}|3[4,7]\d{13})$
describe verifyVISACard，万事达Card，DiscoverCard，美国运通Card
Matching examples
不Matching examples
32.verifyISBN国际标准书Number
expression ^(\d[- ]*){9}[\dxX]$
describe verifyISBN国际标准书Number
Matching examples 7-111-19947-2
不Matching examples
33.verifyGUIDGlobally unique identifier
expression ^[A-Z0-9]{8}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{12}$
describe Format8-4-4-4-12
Matching examples 2064d355-c0b9-41d8-9ef7-9d8b26524751
不Matching examples
34.verify文件路径and扩展名
expression ^([a-zA-Z]\:|\\)\\([^\\]+\\)*[^\/:*?"<>|]+\.txt(l)?$
describe Check paths and file extensions
Matching examples E:\
不Matching examples E:\ , , E:\ ,/21aspnet/
35.verifyHtmlColor value
expression ^#?([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?$
describe Check the color value
Matching examples #FF0000
不Matching examples /21aspnet/
^[1-9]\d*\.\d*|0\.\d*[1-9]\d*$
Integeror小数：^[0-9]+\.{0,1}[0-9]{0,2}$
Only inputnumber："^[0-9]*$"。
Only inputnA bitnumber："^\d{n}$".
Only numbers with at least n digits can be entered: "^\d{n,}$".
Only numbers in m~n are entered:. "^\d{m,n}$"
Only numbers starting with zero and non-zero are entered: "^(0|[1-9][0-9]*)$".
Only positive real numbers with two decimal places can be entered: "^[0-9]+(.[0-9]{2})?$".
Only positive real numbers with 1 to 3 decimal places can be entered: "^[0-9]+(.[0-9]{1,3})?$".
Only non-zero positive integers can be entered: "^\+?[1-9][0-9]*$".
Only non-zero negative integers can be entered:"^\-[1-9][]0-9"*$.
Only characters with length 3 can be entered:"^.{3}$".
Only strings composed of 26 English letters can be entered: "^[A-Za-z]+$".
Only strings composed of 26 capital English letters can be entered: "^[A-Z]+$".
Only strings composed of 26 lowercase English letters can be entered: "^[a-z]+$".
Only strings composed of numbers and 26 English letters can be entered: "^[A-Za-z0-9]+$".
Only strings composed of numbers, 26 English letters, or underscores can be entered: "^\w+$".
Verify user password:"^[a-zA-Z]\w{5,17}$"正确Format为：by字母开头，The length is6~18between，只能Include字符、numberandUnderline。
verify是否含有^%&',;=?$\"Equal Characters:"[^%&',;=?$\x22]+".
Only enter Chinese characters: "^[\u4e00-\u9fa5]{0,}$"
Verify the email address: "^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$".
Verify Internet URL:"^http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$".
Verify phone number:"^(\(\d{3,4}-)|\d{3.4}-)?\d{7,8}$"The correct format is:"XXX-XXXXXXX"、"XXXX-XXXXXXXX"、"XXX-XXXXXXX"、"XXX-XXXXXXXX"、"XXXXXXX"and"XXXXXXXX".
Verify ID number (15 or 18 digits):"^\d{15}|\d{18}$".
Verify 12 months of one year:"^(0?[1-9]|1[0-2])$"The correct format is:"01"～"09"and"1"～"12".
Verification for 31 days in one month:"^((0?[1-9])|((1|2)[0-9])|30|31)$"The correct format is;"01"～"09"and"1"～"31"。
matchChinese字符of正则expression： [\u4e00-\u9fa5]
match双字节字符(Including Chinese characters)：[^\x00-\xff]
application：计算字符串of长度（A double-byte character length meter2，ASCIICharacter meter1）
=function(){return (/[^\x00-\xff]/g,"aa").length;}
match空行of正则expression：\n[\s| ]*\r
matchhtml标签of正则expression：<(.*)>(.*)<\/(.*)>|<(.*)\/>
match首尾空格of正则expression：(^\s*)|(\s*$)
application：javascriptNothing likevbscript那样oftrimfunction，我们就可by利用这个expression来实现，as follows：
= function()
{
return (/(^\s*)|(\s*$)/g, "");
}
利用正则expression分解and转换IPaddress：
下面是利用正则expressionmatchIPaddress，AndIPaddress转换成对应数值ofJavascriptprogram：
function IP2V(ip)
{
re=/(\d+)\.(\d+)\.(\d+)\.(\d+)/g // Regular expression matching IP addressif((ip))
{
return RegExp.$1*(255,3))+RegExp.$2*(255,2))+RegExp.$3*255+RegExp.$4*1
}
else
{
throw new Error("Not a valid IP address!")
}
}
不过上面ofprogram如果不用正则expression，And use it directlysplitfunction来分解可能更简单，programas follows：
var ip="10.100.20.168"
ip=(".")
alert("IP value is:"+(ip[0]*255*255*255+ip[1]*255*255+ip[2]*255+ip[3]*1))
matchEmailaddressof正则expression：\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
match网址URLof正则expression：http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?
利用正则expression限制网页表单里of文本框输入内容：
用正则expression限制Only inputChinese：onkeyup="value=(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="('text',('text').replace(/[^\u4E00-\u9FA5]/g,''))"
用正则expression限制Only input全角字符： onkeyup="value=(/[^\uFF00-\uFFFF]/g,'')" onbeforepaste="('text',('text').replace(/[^\uFF00-\uFFFF]/g,''))"
用正则expression限制Only inputnumber：onkeyup="value=(/[^\d]/g,'') "onbeforepaste="('text',('text').replace(/[^\d]/g,''))"
用正则expression限制Only inputnumberand英文：onkeyup="value=(/[\W]/g,'') "onbeforepaste="('text',('text').replace(/[^\d]/g,''))"
<input onkeyup="value=(/[^\u4E00-\u9FA5\w]/g,'')" onbeforepaste="('text',('text').replace(/[^\u4E00-\u9FA5\w]/g,''))" value="Underlines, numeric letters and Chinese characters are allowed">
<script language="javascript">
if ()// Trigger the keyboard event()
function xz(thsv,nob){
if(nob=="2"){
("text","")
alert("Avoid illegal character input, please do not copy characters");
return false;
}
if (!=8 && !=16 && !=37 && !=38 && !=39 && !=40){
thsvv=;//Input valuethsvs=(-1);//The last character entered//thsvss=(0,-1);//Remove the last wrong characterif (!(/[^\u4E00-\u9FA5\w]/g,'') || ==189){//Regularly remove symbols and underscores='Do not enter illegal symbols ['+thsvs+']';
alert('Do not enter illegal symbols ['+thsvs+']');
="";
return false;
}
}
}
</script>
<input onkeyup="xz(this,1)" onPaste="xz(this,2)" value="">允许number字母and汉字
<script language="javascript">
<!--
function MaxLength(field,maxlimit){
var j = (/[^\x00-\xff]/g,"**").length;
//alert(j);
var tempString=;
var tt="";
if(j > maxlimit){
for(var i=0;i<maxlimit;i++){
if((/[^\x00-\xff]/g,"**").length < maxlimit)
tt = (0,i+1);
else
break;
}
if((/[^\x00-\xff]/g,"**").length > maxlimit)
tt=(0,-1);
= tt;
}else{
;
}
}
</script>
Single line text box control<br />
<INPUT type="text" name="Text1" onpropertychange="MaxLength(this, 5)"><br />
Multi-line text box control:<br />
<TEXTAREA rows="14"
cols="39" name="Textarea1" onpropertychange="MaxLength(this, 15)"></TEXTAREA><br />
控制表单内容Only inputnumber,Chinese....
<script>
function test()
{
if(>50)
{
alert("No more than 50 characters!");
();
return false;
}
}
</script>
<form name=a onsubmit="return test()">
<textarea name="b" cols="40" wrap="VIRTUAL" rows="6"></textarea>
<input type="submit" name="Submit" value="check">
</form>
Only Chinese characters
<input onkeyup="value=(/[^\u4E00-\u9FA5]/g,'')">
Only English characters
<script language=javascript>
function onlyEng()
{
if(!(>=65&&<=90))
=false;
}
</script>
<input onkeydown="onlyEng();">
<input name="coname" type="text" size="50" maxlength="35" class=input2 onkeyup="value=(/[\W]/g,'') "onbeforepaste="('text',('text').replace(/[^\d]/g,''))">
只能是number
<script language=javascript>
function onlyNum()
{
if(!((>=48&&<=57)||(>=96&&<=105)))
//Consider the numeric keys on the keyboard =false;
}
</script>
<input onkeydown="onlyNum();">
Only English charactersandnumber
<input onkeyup="value=(/[\W]/g,'') "onbeforepaste="('text',('text').replace(/[^\d]/g,''))">
verify为emailFormat
<SCRIPT LANGUAGE=Javascript RUNAT=Server>
function isEmail(strEmail) {
if ((/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
return true;
else
alert("oh");
}
</SCRIPT>
<input type=text onblur=isEmail()>
Block keywords(sex , fuck) - Modified
<script language="JavaScript1.2">
function test() {
if(( ("sex") == 0)||( ("fuck") == 0)){
alert("Five talks, four beauties, and three loves");
();
return false;}
}
</script>
<form name=a onsubmit="return test()">
<input type=text name=b>
<input type="submit" name="Submit" value="check">
</form>
限制文本框里Only inputnumber
<input onkeyup="if( !=37 && != 39) value=(/\D/g,'');"onbeforepaste="('text',('text').replace(/\D/g,''))">
手机Number码：(^(\d{3,4}-)?\d{7,8})$|(13[0-9]{9})|(15[8-9]{9})
不会of也可by根据上面介绍of写出来了吧，Just take some time。
Verify the numberof正则expression集
Verify the number：^[0-9]*$
verifynA bitnumber：^\d{n}$
verify至少nBitnumber：^\d{n,}$
verifym-nA bitnumber：^\d{m,n}$
verify零and non零开头ofnumber：^(0|[1-9][0-9]*)$
verify有两Positive real number of decimal places：^[0-9]+(.[0-9]{2})?$
verify有1-3Positive real number of decimal places：^[0-9]+(.[0-9]{1,3})?$
verify非零Positive integer：^\+?[1-9][0-9]*$
verify非零Negative integers：^\-[1-9][0-9]*$
verify非Negative integers（Positive integer + 0） ^\d+$
verify非Positive integer（Negative integers + 0） ^((-\d+)|(0+))$
verify长度为3of字符：^.{3}$
verify由26个英文字母组成of字符串：^[A-Za-z]+$
verify由26个大写英文字母组成of字符串：^[A-Z]+$
verify由26个小写英文字母组成of字符串：^[a-z]+$
verify由numberand26个英文字母组成of字符串：^[A-Za-z0-9]+$
verify由number、26个英文字母orUnderline组成of字符串：^\w+$
verify用户密码:^[a-zA-Z]\w{5,17}$ 正确Format为：by字母开头，The length is6-18between，只能Include字符、numberandUnderline。
verify是否含有 ^%&',;=?$\" Equal characters：[^%&',;=?$\x22]+
Verify Chinese characters：^[\u4e00-\u9fa5],{0,}$
verifyEmailaddress：^\w+[-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$
verifyInternetURL：^http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$ ；^[a-zA-z]+://(w+(-w+)*)(.(w+(-w+)*))*(?S*)?$
verify电话Number码：^(\(\d{3,4}\)|\d{3,4}-)?\d{7,8}$：--正确Format为：XXXX-XXXXXXX，XXXX-XXXXXXXX，XXX-XXXXXXX，XXX-XXXXXXXX，XXXXXXX，XXXXXXXX。
verify身份证Number（15Bit或18Bitnumber）：^\d{15}|\d{}18$
verify一年of12Months：^(0?[1-9]|1[0-2])$ 正确Format为：“01”-“09”and“1”“12”
verify一Monthsof31sky：^((0?[1-9])|((1|2)[0-9])|30|31)$ 正确Format为：01、09and1、31。
Integer：^-?\d+$
Non-negative floating point number（Positive floating point number + 0）：^\d+(\.\d+)?$
Positive floating point number ^(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*))$
非Positive floating point number（Negative floating point number + 0） ^((-\d+(\.\d+)?)|(0+(\.0+)?))$
Negative floating point number ^(-(([0-9]+\.[0-9]*[1-9][0-9]*)|([0-9]*[1-9][0-9]*\.[0-9]+)|([0-9]*[1-9][0-9]*)))$
Floating point number ^(-?\d+)(\.\d+)?
The above is the commonly used regular expressions summarized by this article. I hope it will be helpful for everyone to learn regular expressions.
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