大约有 45,000 项符合查询结果(耗时:0.0461秒) [XML]

https://stackoverflow.com/ques... 

Unicode equivalents for \w and \b in Java regular expressions?

...t also sports corrected definitions for various other properties, too. It now tracks The Unicode Standard, in both RL1.2 and RL1.2a from UTS#18: Unicode Regular Expressions. This is an exciting and dramatic improvement, and the development team is to be commended for this important effort. Java...
https://stackoverflow.com/ques... 

C# code to validate email address

...user experience. Assuming the e-mail address is valid, you could look for known top-level domains, check the domain for an MX record, check for spelling errors from common domain names (gmail.cmo), etc. Then present a warning giving the user a chance to say "yes, my mail server really does allow ???...
https://stackoverflow.com/ques... 

When should you not use virtual destructors?

...truction. For the ellipsis case, it is no longer undefined behavior it is now conditionally-supported with implementation-defined semantics (N3937 - ~C++ '14 - 5.2.2/7): ...Passing a potentially-evaluated argument of class type (Clause 9) having a non-trivial copy constructor, a non-trivial mov...
https://stackoverflow.com/ques... 

Is it valid to have a html form inside another html form?

...he problem with using such approaches is that the behavior of your code is now not guaranteed across browsers. (since it's not standard) share | improve this answer | follow...
https://stackoverflow.com/ques... 

Maximum number of records in a MySQL database table

...is before... i just surpassed my 64 terrabyte size on one of my tables and now my system is so slow! – JM4 Nov 30 '10 at 1:00 ...
https://stackoverflow.com/ques... 

How to make a copy of a file in android?

...d I found the problem was missing permission to write to external storage. now it works fine. – A S Feb 16 '12 at 9:51 8 ...
https://stackoverflow.com/ques... 

There is no ViewData item of type 'IEnumerable' that has the key 'xxx'

... "text-danger" }) </div> </div> Now if we remove this statement: ViewBag.OperatorId = new SelectList(db.Operators, "OperatorId", "OperatorSign", number.OperatorId); from back of the following statement (in our controller) : return View(); we will see ...
https://stackoverflow.com/ques... 

How to migrate back from initial migration in Django 1.7?

I created a new app with some models and now I noticed that some of the models are poorly thought out. As I haven't committed the code the sensible thing would be to migrate the database to last good state and redo the migration with better models. In this case the last good state is database where ...
https://stackoverflow.com/ques... 

How do I create delegates in Objective-C?

I know how delegates work, and I know how I can use them. 19 Answers 19 ...
https://stackoverflow.com/ques... 

How can I reverse a NSArray in Objective-C?

... danielpunkass's solution. I used it thinking it was a great shortcut, but now I've just spent 3 hours trying to figure out why my A* algorithm was broken. It's because it returns the wrong set! – Georg Schölly Mar 12 '10 at 6:23 ...