Summary of asp.net verification regular expression methods
Integers or decimals: ^[0-9]+/.{0,1}[0-9]{0,2}$
Only numbers can be entered: "^[0 -9]*$".
Only n-digit numbers can be entered: "^/d{n}$".
You can only enter numbers with at least n digits: "^/d{n,}$".
Only m~n digits can be entered:. "^/d{m,n}$"
Only numbers starting with zero and non-zero can be 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"*$.
Only characters with a length of 3 can be entered: "^.{3}$".
Only a string consisting of 26 English letters can be entered: "^[A-Za-z]+$".
Only a string consisting of 26 uppercase English letters can be entered: "^[A-Z]+$".
Only a string consisting of 26 lowercase English letters can be entered: "^[a-z]+$".
Only a string consisting of numbers and 26 English letters can be entered: "^[A-Za-z0-9]+$".
You can only enter a string consisting of numbers, 26 English letters or underscores: "^/w+$".
Verify user password: "^[a-zA-Z]/w{5,17}$" The correct format is: starting with a letter, the length is between 6 and 18, and can only contain characters, numbers and underscores.
Verify whether it contains characters such as ^%&'',;=?$/": "[^%&'',;=?$/x22]+".
Only Chinese characters can be entered: "^[ /u4e00-/u9fa5]{0,}$"
Verify email address:"^/w+([-+.]/w+)*@/w+([-.]/w+)*/./w+( [-.]/w+)*$".
Verify InternetURL: "^http://([/w-]+/.)+[/w-]+(/[/w-./?% &=]*)?$".
Verification phone number: "^(/(/d{3,4}-)|/d{3.4}-)?/d{7,8}$"Correct format For: "XXX-XXXXXXX", "XXXX-XXXXXXXX", "XXX-XXXXXXX", "XXX-XXXXXXXX", "XXXXXXX" and "XXXXXXXX"
Verify 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 a month: "^((0?[1-9])|((1|2)[0-9 ])|30|31)$"The correct format is; "01"～"09" and "1"～"31". Integer or decimal: ^[0-9]+/.{0,1}[0- 9]{0,2}$
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