大约有 38,000 项符合查询结果(耗时:0.0429秒) [XML]

https://stackoverflow.com/ques... 

HTML5 Email Validation

...idhun MP 85.2k2828 gold badges145145 silver badges189189 bronze badges 3 ...
https://stackoverflow.com/ques... 

Regular expression to match numbers with or without commas and decimals in text

... 293 EDIT: Since this has gotten a lot of views, let me start by giving everybody what they Googled ...
https://stackoverflow.com/ques... 

How to extract text from a string using sed?

... 92 The pattern \d might not be supported by your sed. Try [0-9] or [[:digit:]] instead. To only p...
https://stackoverflow.com/ques... 

System.Threading.Timer in C# it seems to be not working. It runs very fast every 3 second

... answered Oct 9 '12 at 9:54 Ivan ZlatanovIvan Zlatanov 4,95633 gold badges2626 silver badges4343 bronze badges ...
https://stackoverflow.com/ques... 

RegEx to parse or validate Base64 data

...on to match Base64 encoded words, you can use the following: ^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$ share | improve this answer | follow ...
https://stackoverflow.com/ques... 

Generate random integers between 0 and 9

How can I generate random integers between 0 and 9 (inclusive) in Python? 19 Answers 1...
https://stackoverflow.com/ques... 

How to validate an email address in PHP

... to warn you it is not an easy read by any stretch: rfc5322 rfc5321 rfc3696 rfc6531 (allows unicode characters, although many clients / servers don't accept it) Note that filter_var() is as already stated only available as of PHP 5.2. In case you want it to work with earlier versions of PHP you ...
https://stackoverflow.com/ques... 

How to thoroughly purge and reinstall postgresql on ubuntu? [closed]

... 9 Answers 9 Active ...
https://stackoverflow.com/ques... 

What are best practices for validating email addresses on iOS 2.0

...idateEmail: (NSString *) candidate { NSString *emailRegex = @"(?:[a-z0-9!#$%\\&'*+/=?\\^_`{|}~-]+(?:\\.[a-z0-9!#$%\\&'*+/=?\\^_`{|}" @"~-]+)*|\"(?:[\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x21\\x23-\\x5b\\x5d-\\" @"x7f]|\\\\[\\x01-\\x09\\x0b\\x0c\\x0e-\\x7f])*\")@(?:(?:[a-z0-9](?:[a-" @"z0-9-]*...
https://stackoverflow.com/ques... 

Ubuntu rails install fails on zlib

... 297 If you come across this question trying to install Ruby using Ruby Version Manager (RVM) on Ubu...