大约有 40,000 项符合查询结果(耗时:0.0666秒) [XML]

https://stackoverflow.com/ques... 

How to check iOS version?

...eck if UIPopoverController is available on the current device using NSClassFromString: if (NSClassFromString(@"UIPopoverController")) { // Do something } For weakly linked classes, it is safe to message the class, directly. Notably, this works for frameworks that aren't explicitly linked as "...
https://stackoverflow.com/ques... 

Tool for comparing 2 binary files in Windows [closed]

...w, which quickly disappears. Open up a command prompt and run the program from there to see what arguments it accepts, and then use it from the command prompt accordingly. – nonoitall Oct 14 '12 at 0:37 ...
https://stackoverflow.com/ques... 

python NameError: global name '__file__' is not defined

... But to run file.py from a script, you would put it in the same directory as your script for example. So you need to move to this directory before running file.py... So still something better is sought. – ztyh ...
https://stackoverflow.com/ques... 

How to switch activity without animation in Android?

...ks just great especially for transparent/dialog themed activities excluded from recents with a different task affinity. Without this the animation kept showing creating very odd results for a dialog being opened! – 3c71 Oct 5 '13 at 8:54 ...
https://stackoverflow.com/ques... 

Using Java with Nvidia GPUs (CUDA)

... As a rule of thumb: You can assume that reading/writing one data element from the "main" GPU memory has a latency of about 500 instructions.... Therefore, another key point for the performance of GPUs is data locality: If you have to read or write data (and in most cases, you will have to ;-)), t...
https://stackoverflow.com/ques... 

How do I get an object's unqualified (short) class name?

...hat code and you get a better result. The above might fetch the reflection from some pool, but this is not the usual behaviour of the applications out there. They only need it once or twice. – LeMike Nov 5 '14 at 11:21 ...
https://stackoverflow.com/ques... 

How can I generate a list or array of sequential integers in Java?

...nteger> , or perhaps an Integer[] or int[] , with sequential values from some start value to an end value? 8 Ans...
https://stackoverflow.com/ques... 

Convert datetime object to a String of date only in Python

... As far as I can tell from the docs there is no way to return a non-zero padded date ie '2/23/2012'. – Ron Kalian Oct 31 '17 at 10:41 ...
https://stackoverflow.com/ques... 

When should I use UNSIGNED and SIGNED INT in MySQL?

...http://dev.mysql.com/doc/refman/5.6/en/integer-types.html UNSIGNED ranges from 0 to n, while signed ranges from about -n/2 to n/2. In this case, you have an AUTO_INCREMENT ID column, so you would not have negatives. Thus, use UNSIGNED. If you do not use UNSIGNED for the AUTO_INCREMENT column, your...
https://stackoverflow.com/ques... 

WaitAll vs WhenAll

What is the difference between Task.WaitAll() and Task.WhenAll() from the Async CTP ? Can you provide some sample code to illustrate the different use cases ? ...