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Editor to share with you what ASP.NET regular expressions are commonly used, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Integer or decimal: ^ [0-9] +\. {0jue 1} [0-9] {0jue 2} $

Only the number "^ [0-9] * $" can be entered.

Only n-digit numbers can be entered: "^\ d {n} $".

You can only enter at least n digits: "^\ d {n,} $".

You can only enter the number of mdistinct n digits:. "^\ d {mrecoery n} $"

You can only enter zero and non-zero numbers: "^ (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 1-3 decimal places can be entered: "^ [0-9] + (. [0-9] {1pr 3})? $".

You can only enter a positive integer that is not zero: "^\ +? [1-9] [0-9] * $".

You can only enter a negative integer that is not zero: "^\-[1-9] [] 0-9" * $.

Only characters of length 3 can be entered: "^. {3} $".

You can only enter a string of 26 letters: "^ [A-Za-z] + $".

You can only enter a string of 26 capital letters: "^ [Amurz] + $".

You can only enter a string of 26 lowercase letters: "^ [amurz] + $".

You can only enter a string of numbers and 26 letters: "^ [A-Za-z0-9] + $".

You can only enter a string consisting of numbers, 26 letters, or an underscore: "^\ wicked $".

Verify the user password: "^ [a-zA-Z]\ w {5pm 17} $" is in the correct format: begins with a letter, is between 6x18 in length, and can only contain characters, numbers and underscores.

Verify that it contains characters such as ^% &',; =? $\ ":" [^% &',; =? $\ x22] + ".

You can only enter Chinese characters: "^ [\ u4e00 -\ u9fa5] {0,} $"

Verify the Email address: "^\ w + ([- +.]\ w +) * @\ w + ([-.]\ w +) *.\ w + ([-.]\ w +) * $".

Verify InternetURL: "^ http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$".

Verify the phone number: "^ (\ (\ d {3pr 4} -) |\ d {3.4} -)?\ d {7 XXXX- XXXXXXXX 8} $" the correct format is: "XXX-XXXXXXX", "XXXX- XXXXXXXX", "XXX-XXXXXXX", "XXX-XXXXXXXX", "XXXXXXX" and "XXXXXXXX".

Verify the ID number (15 or 18 digits): "^\ d {15} |\ d {18} $".

Verify the 12 months of the year: "^ (0? [1-9] | 1 [0-2]) $" the correct format is: "01" ~ "09" and "1" ~ "12".

Verify the 31 days of the month: "^ ((0? [1-9]) | (1 | 2) [0-9]) | 30 | 31) $" the correct format is; "01" ~ "09" and "1" ~ "31". Integer or decimal: ^ [0-9] +\. {0jue 1} [0-9] {0jue 2} $

Only the number "^ [0-9] * $" can be entered.

Only n-digit numbers can be entered: "^\ d {n} $".

You can only enter at least n digits: "^\ d {n,} $".

You can only enter the number of mdistinct n digits:. "^\ d {mrecoery n} $"

You can only enter zero and non-zero numbers: "^ (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 1-3 decimal places can be entered: "^ [0-9] + (. [0-9] {1pr 3})? $".

You can only enter a positive integer that is not zero: "^\ +? [1-9] [0-9] * $".

You can only enter a negative integer that is not zero: "^\-[1-9] [] 0-9" * $.

Only characters of length 3 can be entered: "^. {3} $".

You can only enter a string of 26 letters: "^ [A-Za-z] + $".

You can only enter a string of 26 capital letters: "^ [Amurz] + $".

You can only enter a string of 26 lowercase letters: "^ [amurz] + $".

You can only enter a string of numbers and 26 letters: "^ [A-Za-z0-9] + $".

You can only enter a string consisting of numbers, 26 letters, or an underscore: "^\ wicked $".

Verify the user password: "^ [a-zA-Z]\ w {5pm 17} $" is in the correct format: begins with a letter, is between 6x18 in length, and can only contain characters, numbers and underscores.

Verify that it contains characters such as ^% &',; =? $\ ":" [^% &',; =? $\ x22] + ".

You can only enter Chinese characters: "^ [\ u4e00 -\ u9fa5] {0,} $"

Verify the Email address: "^\ w + ([- +.]\ w +) * @\ w + ([-.]\ w +) *.\ w + ([-.]\ w +) * $".

Verify InternetURL: "^ http://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?$".

Verify the phone number: "^ (\ (\ d {3pr 4} -) |\ d {3.4} -)?\ d {7 XXXX- XXXXXXXX 8} $" the correct format is: "XXX-XXXXXXX", "XXXX- XXXXXXXX", "XXX-XXXXXXX", "XXX-XXXXXXXX", "XXXXXXX" and "XXXXXXXX".

Verify the ID number (15 or 18 digits): "^\ d {15} |\ d {18} $".

Verify the 12 months of the year: "^ (0? [1-9] | 1 [0-2]) $" the correct format is: "01" ~ "09" and "1" ~ "12".

Verify the 31 days of the month: "^ ((0? [1-9]) | (1 | 2) [0-9]) | 30 | 31) $" the correct format is; "01" ~ "09" and "1" ~ "31".

The above is all the content of the article "what are the common regular expressions of ASP.NET?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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