1. Realize regular expression mobile phone verification.
Common mobile phone numbers are all 11 digits
The first 3 digits indicate the region and the operator
Regular expression ^
Tag: numbers
Regular expression detects if the IP address and port number are legal
Regular expressions to check whether the IP address and port number are legal, the code is as follows:
Regular expressions to detect IP address
public static bool CheckAddress(string s)
Regular expression – regular expression matches two unequal numbers
I want to know how to match two numbers, but they are not the same. So, match 12, but not 11, which would be fine.
What I have now is:
I have to match a string like “P12”, I completed it wit
Regular expressions for combining numbers
I have a series of numbers as follows. I want to combine the numbers into 4 groups. Can someone give vim regular expressions?
Input: 1234 56 7890 1234
The output should be: 1234 5678 90
FONTS – Browser supports digital word weight
When is it fully supported to add digital font weights to each browser? Specifically: IE, FireFox, Chrome, Safari, iOS Safari, Android browsers.
I know that all browsers support bold and norm
[C #] Simple and fast to convert various numeric words to numbers (String to int)
I believe that when you are writing programs, you must have a lot of opportunities to convert numeric strings into int or float type values, but the numeric characters may not be very clean, someti
Only numbers are entered as the iPad keyboard
The UIKeyboardTypeNumberPad of the ipad.setting keyboard type displays the numeric keyboard, but the user can switch back to letters, and I have to display a numeric keyboard as the keyboard for th