大约有 35,100 项符合查询结果（耗时：0.0479秒） [XML]
How do I convert an NSString value to NSData?
...
ldiqual
14k66 gold badges4545 silver badges8484 bronze badges
answered May 23 '09 at 11:34
flitzwaldflitzwald
...
What is the difference between Debug and Release in Visual Studio?
...important because the compiler is very advanced and can do some pretty tricky low-level improving of your code. As a result some lines of your code might get left without any instructions at all, or some might get all mixed up. Step-by-step debugging would be impossible. Also, local variables are of...
Synchronization vs Lock
java.util.concurrent API provides a class called as Lock , which would basically serialize the control in order to access the critical resource. It gives method such as park() and unpark() .
...
Why does 'continue' behave like 'break' in a Foreach-Object?
...he return instead of the continue. This return returns from the script block which is invoked by ForEach-Object on a particular iteration, thus, it simulates the continue in a loop.
1..100 | ForEach-Object {
if ($_ % 7 -ne 0 ) { return }
Write-Host "$($_) is a multiple of 7"
}
There is a ...
How to use ConcurrentLinkedQueue?
How do I use a ConcurrentLinkedQueue in Java?
Using this LinkedQueue , do I need to be worried about concurrency in the queue? Or do I just have to define two methods (one to retrive elements from the list and another to add elements to the list)?
Note: obviously these two methods have to be ...
How to migrate/convert from SVN to Mercurial (hg) on windows
I'm looking for a tool to migrate a couple of SVN repositories to Mercurial, with history, labels and so on.
9 Answers
...
How do I check if a string contains another string in Swift?
In Objective-C the code to check for a substring in an NSString is:
27 Answers
27...
Python date string to date object
...
You can use strptime in the datetime package of Python:
>>> import datetime
>>> datetime.datetime.strptime('24052010', "%d%m%Y").date()
datetime.date(2010, 5, 24)
share
...
Escape quotes in JavaScript
...oEdit to scrub out the double-quote characters. They are causing the onclick HTML attribute to close prematurely.
Using the JavaScript escape character, \, isn't sufficient in the HTML context. You need to replace the double-quote with the proper XML entity representation, ".
...
jQuery multiple events to trigger the same function
Is there a way to have keyup , keypress , blur , and change events call the same function in one line or do I have to do them separately?
...