07.01 self-summary
Re module commonly used regular expression to match
First, the check digit of expression
1. Digital
^[0-9]\*$
Digital 2.n bits
^\d{n}$
3. The least number of bits n
^\d{n,}$
Bit digital 4.mn
^\d{m,n}$
5. The number at the beginning of zero and non-zero
^(0|[1-9][0-9]\*)$
With up to two decimals 6. The non-zero at the beginning of
^([1-9][0-9]\*)+(\.[0-9]{1,2})?$
7. 1-2 with a positive or negative fractional
^(\-)?\d+(\.\d{1,2})$
8. The positive and negative numbers, decimals, and
^(\-|\+)?\d+(\.\d+)?$
9. There are two positive real number of decimal places
^[0-9]+(\.[0-9]{2})?$
1 to 10. The three positive real number decimal
^[0-9]+(\.[0-9]{1,3})?$
11. The non-zero positive integer
^[1-9]\d\*$ 或 ^([1-9][0-9]\*){1,3}$ 或 ^\+?[1-9][0-9]\*$
12. The non-zero negative integer
^\-[1-9][]0-9"\*$ 或 ^-[1-9]\d\*$
13. A non-negative integer
^\d+$ 或 ^[1-9]\d\*|0$
14. The non-positive integer
^-[1-9]\d\*|0$ 或 ^((-\d+)|(0+))$
15. Non-negative float
^\d+(\.\d+)?$ 或 ^[1-9]\d\*\.\d\*|0\.\d\*[1-9]\d\*|0?\.0+|0$
16. Non-positive float
^((-\d+(\.\d+)?)|(0+(\.0+)?))$ 或 ^(-([1-9]\d\*\.\d\*|0\.\d\*[1-9]\d\*))|0?\.0+|0$
17. positive 浮点 number
^[1-9]\d\*\.\d\*|0\.\d\*[1-9]\d\*$ 或 ^(([0-9]+\.[0-9]\*[1-9][0-9]\*)|([0-9]\*[1-9][0-9]\*\.[0-9]+)|([0-9]\*[1-9][0-9]\*))$
18. 负浮 score
^-([1-9]\d\*\.\d\*|0\.\d\*[1-9]\d\*)$ 或 ^(-(([0-9]+\.[0-9]\*[1-9][0-9]\*)|([0-9]\*[1-9][0-9]\*\.[0-9]+)|([0-9]\*[1-9][0-9]\*)))$
19. Float
^(-?\d+)(\.\d+)?$ 或 ^-?([1-9]\d\*\.\d\*|0\.\d\*[1-9]\d\*|0?\.0+|0)$
Second, check character expression
1. Chinese characters
^[\u4e00-\u9fa5]{0,}$
2. English and digital
^[A-Za-z0-9]+$ 或 ^[A-Za-z0-9]{4,40}$
3. length is 3-20 all characters
^.{3,20}$
4. The string consists of the 26 English letters
^[A-Za-z]+$
The string consists of 26 English capital letters
^[A-Z]+$
6. Write letters composed by the 26 small string
^[a-z]+$
7. The string of numbers and English letters 26
^[A-Za-z0-9]+$
8. The string of digits, letters or underscore 26 composed of
^\w+$ 或 ^\w{3,20}$
9. Chinese, English, numbers, including underscore
^[\u4E00-\u9FA5A-Za-z0-9_]+$
10. Chinese, English, numbers, symbols excluding underline
^[\u4E00-\u9FA5A-Za-z0-9]+$ 或 ^[\u4E00-\u9FA5A-Za-z0-9]{2,20}$
11. The character input containing ~ of prohibits
[^~\x22]+
Third, the special needs of expression
1.Email address
^\w+([-+.]\w+)\*@\w+([-.]\w+)\*\.\w+([-.]\w+)\*$
2. Domain Name
[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(/.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+/.?
3.InternetURL
[a-zA-z]+://[^\s]\* 或 ^http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]\*)?$
4. Number
1. phone number
^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$
2. Domestic phone number (0511-4405222,021-87888822)
\d{3}-\d{8}|\d{4}-\d{7}
3. The phone number regular expression (support phone number, area code 3-4, 7-8 live numbers, 1-4 extension):
((\d{11})|^((\d{7,8})|(\d{4}|\d{3})-(\d{7,8})|(\d{4}|\d{3})-(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1})|(\d{7,8})-(\d{4}|\d{3}|\d{2}|\d{1}))$)
The ID number (15, 18 digits), the last digit is a check digit, X may be a number or character
(^\d{15}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)
6. username and password
1. The account is valid (beginning with the letter, allow 5-16 bytes, allows alphanumeric characters and underscores)
^[a-zA-Z][a-zA-Z0-9_]{4,15}$
2. Password (start with a letter, a length between 6 and 18, can contain letters, numbers and underscores)
^[a-zA-Z]\w{5,17}$
3. Strong Password (must contain a combination of uppercase and lowercase letters and numbers, special characters can not be used, a length of between 8-10)
^(?=.\*\d)(?=.\*[a-z])(?=.\*[A-Z])[a-zA-Z0-9]{8,10}$
4. Strong passwords (which must contain a combination of uppercase and lowercase letters and numbers, special characters may be used, a length of between 8-10)
^(?=.\*\d)(?=.\*[a-z])(?=.\*[A-Z]).{8,10}$
7. Time
1. Date Format
^\d{4}-\d{1,2}-\d{1,2}
2. year 12 months (01 ~ 09 and 1-12)
^(0?[1-9]|1[0-2])$
3. 31 days of the month (1 to 01 ~ 09 and 31)
^((0?[1-9])|((1|2)[0-9])|30|31)$
8.xml file
^([a-zA-Z]+-?)+[a-zA-Z0-9]+\\.[x|X][m|M][l|L]$
9. Chinese characters in regular expressions
[\u4e00-\u9fa5]
10. The positive expression blank line
\n\s\*\r (可以用来删除空白行)
11.HTML mark regular expressions
<(\S\*?)[^>]\*>.\*?|<.\*? /> ( 首尾空白字符的正则表达式^\s\*|\s\*$或(^\s\*)|(\s\*$) (可以用来删除行首行尾的空白字符(包括空格、制表符、换页符等等)，非常有用的表达式)
12. QQ number Tencent
[1-9][0-9]{4,} (腾讯QQ号从10000开始)
13. China Postal Code
[1-9]\d{5}(?!\d) (中国邮政编码为6位数字)
14.IP address
((?:(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d)\\.){3}(?:25[0-5]|2[0-4]\\d|[01]?\\d?\\d))