大约有 48,000 项符合查询结果(耗时:0.0542秒) [XML]

https://stackoverflow.com/ques... 

Which cryptographic hash function should I choose?

...Indeed, MD5 is often still used in applications where the smaller key size and speed are beneficial. That said, due to its flaws, researchers recommend the use of other hash functions in new scenarios. SHA1 has a flaw that allows collisions to be found in theoretically far less than the 2^80 steps ...
https://stackoverflow.com/ques... 

How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites

...answered Jul 5 '10 at 7:45 Sky SandersSky Sanders 32k55 gold badges6161 silver badges8686 bronze badges ...
https://stackoverflow.com/ques... 

What does ||= (or-equals) mean in Ruby?

... This question has been discussed so often on the Ruby mailing-lists and Ruby blogs that there are now even threads on the Ruby mailing-list whose only purpose is to collect links to all the other threads on the Ruby mailing-list that discuss this issue. Here's one: The definitive list of ||= ...
https://stackoverflow.com/ques... 

What does appending “?v=1” to CSS and Javascript URLs in link and script tags do?

...ing at a HTML 5 boilerplate template (from http://html5boilerplate.com/ ) and noticed the use of "?v=1" in URLs when referring to CSS and Javascript files. ...
https://stackoverflow.com/ques... 

MySQL connection not working: 2002 No such file or directory

I'm trying to set up WordPress. I have Apache and MySQL running, and the accounts and database are all set up. I tried to make a simple connection: ...
https://stackoverflow.com/ques... 

What are the aspect ratios for all Android phone and tablet devices?

I'm looking for a list of all screen aspect ratios for popular Android based Phones and Tablets. 5 Answers ...
https://stackoverflow.com/ques... 

How to enumerate an enum with String type?

... print($0.rawValue) } Compatibility with earlier Swift versions (3.x and 4.x) If you need to support Swift 3.x or 4.0, you may mimic the Swift 4.2 implementation by adding the following code: #if !swift(>=4.2) public protocol CaseIterable { associatedtype AllCases: Collection where AllC...
https://stackoverflow.com/ques... 

How can I use a file in a command and redirect output to the same file without truncating it?

...ly I want to take as input text from a file, remove a line from that file, and send the output back to the same file. Something along these lines if that makes it any clearer. ...
https://stackoverflow.com/ques... 

How to determine the first and last iteration in a foreach loop?

... think downvoting should take place here as this is also working correctly and is still not so rubbish as using array_shift and array_pop. Though this is the solution I'd came up if I had to implement such a thing, I'd stick with the Rok Kralj's answer now on. – shadyyx ...
https://stackoverflow.com/ques... 

Use rvmrc or ruby-version file to set a project gemset with RVM?

I use RVM, the Ruby Version Manager to specify a Ruby version and a set of gems for each of my Rails projects. 5 Answers ...