大约有 20,217 项符合查询结果(耗时:0.0380秒) [XML]

https://stackoverflow.com/ques... 

Does const mean thread-safe in C++11?

I hear that const means thread-safe in C++11 . Is that true? 1 Answer 1 ...
https://stackoverflow.com/ques... 

What is a proper naming convention for MySQL FKs?

Being that they must be unique, what should I name FK's in a MySQL DB? 4 Answers 4 ...
https://stackoverflow.com/ques... 

What is the difference between NaN and None?

I am reading two columns of a csv file using pandas readcsv() and then assigning the values to a dictionary. The columns contain strings of numbers and letters. Occasionally there are cases where a cell is empty. In my opinion, the value read to that dictionary entry should be None but instead ...
https://stackoverflow.com/ques... 

Differences between Agda and Idris

I'm starting to dive into dependently-typed programming and have found that the Agda and Idris languages are the closest to Haskell, so I started there. ...
https://stackoverflow.com/ques... 

Determining type of an object in ruby

I'll use python as an example of what I'm looking for (you can think of it as pseudocode if you don't know Python): 5 Answe...
https://stackoverflow.com/ques... 

Python : List of dict, if exists increment a dict value, if not append a new dict

I would like do something like that. 6 Answers 6 ...
https://stackoverflow.com/ques... 

Unit Test? Integration Test? Regression Test? Acceptance Test?

Is there anyone that can clearly define these levels of testing as I find it difficult to differentiate when doing TDD or unit testing. Please if anyone can elaborate how, when to implement these? ...
https://stackoverflow.com/ques... 

Why is not in HTML 5 Tag list while is?

Shouldn't both be removed? Or does it mean we should use <small> ? Why is <big> removed but <small> is not? What is the problem with <big> which does not apply to <small> ? ...
https://stackoverflow.com/ques... 

what's the correct way to send a file from REST web service to client?

I've just started to develop REST services, but I've come across a difficult situation: sending files from my REST service to my client. So far I've gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats...
https://stackoverflow.com/ques... 

Assign width to half available screen width declaratively

Is it possible to assign a widget width to half the available screen width, and do it using declarative xml? 5 Answers ...