大约有 41,000 项符合查询结果(耗时:0.0833秒) [XML]

https://stackoverflow.com/ques... 

How to add elements to an empty array in PHP?

... Both array_push and the method you described will work. $cart = array(); $cart[] = 13; $cart[] = 14; // etc //Above is correct. but below one is for further understanding $cart = array(); for($i=0;$i<=5;$i++){ $cart[] = $i; } echo "<pre>"; print_r($cart); ech...
https://stackoverflow.com/ques... 

Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.

...ractice if I want to require a relative file in Ruby and I want it to work in both 1.8.x and >=1.9.2? 11 Answers ...
https://stackoverflow.com/ques... 

GDB corrupted stack frame - How to debug?

...llowing stack trace. Is it possible to make out anything useful from this for debugging? 5 Answers ...
https://stackoverflow.com/ques... 

Understanding NSRunLoop

Can anyone explain for what is NSRunLoop ? so as I know NSRunLoop is a something connected with NSThread right? So assume I create a Thread like ...
https://stackoverflow.com/ques... 

How do you grep a file and get the next 5 lines

How do I grep a file for 19:55 and get the Line 1,2,3,4,5? 3 Answers 3 ...
https://stackoverflow.com/ques... 

Which exception should I raise on bad/illegal argument combinations in Python?

I was wondering about the best practices for indicating invalid argument combinations in Python. I've come across a few situations where you have a function like so: ...
https://stackoverflow.com/ques... 

Python try-else

...by the try ... except statement. So, if you have a method that could, for example, throw an IOError, and you want to catch exceptions it raises, but there's something else you want to do if the first operation succeeds, and you don't want to catch an IOError from that operation, you might write ...
https://stackoverflow.com/ques... 

Is Chrome's JavaScript console lazy about evaluating arrays?

... Thanks for the comment, tec. I was able to find an existing unconfirmed Webkit bug that explains this issue: https://bugs.webkit.org/show_bug.cgi?id=35801 (EDIT: now fixed!) There appears to be some debate regarding just how much o...
https://stackoverflow.com/ques... 

Understanding reference counting with Cocoa and Objective-C

...C and Cocoa with a view to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept, but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it, but I'm just not over the hump yet. ...
https://stackoverflow.com/ques... 

c# why can't a nullable int be assigned null as a value [duplicate]

... to an int?. The problem is that both values returned by the ternary operator must be the same type, or one must be implicitly convertible to the other. In this case, null cannot be implicitly converted to int nor vice-versus, so an explict cast is necessary. Try this instead: int? accom = (accomSt...