大约有 44,000 项符合查询结果(耗时:0.0695秒) [XML]

https://stackoverflow.com/ques... 

(-2147483648> 0) returns true in C++?

...uld make the compiler to evaluate -2147483648 in the domain of larger type and the result would be negative, as one would expect. However, apparently in your case the range of long int is the same as range of int, and in general there's no integer type with greater range than int on your platform....
https://stackoverflow.com/ques... 

Rails detect if request was AJAX

... Warning: this does not work on standard remote: true calls in newer Rails versions, as the necessary headers don't get set. – Roland Studer May 27 at 18:04 ...
https://stackoverflow.com/ques... 

How do I use itertools.groupby()?

I haven't been able to find an understandable explanation of how to actually use Python's itertools.groupby() function. What I'm trying to do is this: ...
https://stackoverflow.com/ques... 

Is there a way to iterate over a dictionary?

...d a key in order to get a value . But how can I iterate over all keys and values in a NSDictionary , so that I know what keys there are, and what values there are? I know there is something called a for-in-loop in JavaScript . Is there something similar in Objective-C ? ...
https://stackoverflow.com/ques... 

binning data in python with scipy/numpy

... of an array in prespecified bins? for example, i have an array of numbers and an array corresponding to bin start and end positions in that array, and I want to just take the mean in those bins? I have code that does it below but i am wondering how it can be cut down and improved. thanks. ...
https://stackoverflow.com/ques... 

Java Equivalent of C# async/await?

...user960567: You need to distinguish between the version of C# you're using and the version of .NET you're using. async/await is a language feature - it was introduced in C# 5. Yes, you can use Microsoft.Bcl.Async to use async/await targeting .NET 4, but you've still got to use a C# 5 compiler. ...
https://stackoverflow.com/ques... 

How to determine the content size of a UIWebView?

...ce we do both frame changes right after each other, the view isn't updated and doesn't flicker. Of course, we have to wait until the content has been loaded, so we put the code into the -webViewDidFinishLoad: delegate method. Obj-C - (void)webViewDidFinishLoad:(UIWebView *)aWebView { CGRect f...
https://stackoverflow.com/ques... 

Nodejs send file in response

...t using a whole framework. I am using node-native-zip to create an archive and I want to send that to the user. 2 Answers ...
https://stackoverflow.com/ques... 

Is it possible in SASS to inherit from a class in another file?

...ty much answered this question (I just neglected to check back for a while and then forgot); but I'm accepting your answer because it is the most complete—i.e., it walks me through the whole process. Thanks! – Dan Tao Mar 7 '13 at 22:02 ...
https://stackoverflow.com/ques... 

Android Center text on canvas

... And probably best casting _text.Length to a float as it obviously won't work for odd text lengths. – paj7777 Apr 8 '13 at 9:44 ...