大约有 19,000 项符合查询结果（耗时：0.0370秒） [XML]
Best way to serialize an NSData into a hexadeximal string
... < dataLength; ++i)
[hexString appendString:[NSString stringWithFormat:@"%02lx", (unsigned long)dataBuffer[i]]];
return [NSString stringWithString:hexString];
}
@end
Usage:
NSData *someData = ...;
NSString *someDataHexadecimalString = [someData hexadecimalString];
This is "prob...
count vs length vs size in a collection
...d try to stick with whatever naming convention is used by the language/platform you're using (eg., size() in C++). Not that this seems to help you with your Array.Length dilemma.
share
|
improve th...
Asynchronous Process inside a javascript for loop [duplicate]
I am running an event loop of the following form:
6 Answers
6
...
Simple (I think) Horizontal Line in WPF?
Creating a relatively simple data entry form, and just want to separate certain sections with a horizontal line (not unlike an HR tag in HTML) that stretches the full length of the form.
...
What in the world are Spring beans?
...
The objects that form the backbone of your application and that are
managed by the Spring IoC* container are called beans. A bean is an
object that is instantiated, assembled, and otherwise managed by a
Spring IoC container. These beans...
Should accessing SharedPreferences be done off the UI Thread?
...lad you're already playing with it!
Some things to note: (in lazy bullet form)
if this is the worst of your problems, your app's probably in a good spot. :) Writes are generally slower than reads, though, so be sure you're using SharedPreferenced$Editor.apply() instead of commit(). apply() is...
Why is String.chars() a stream of ints in Java 8?
...(), that gives a stream of boxes characters, which will have some light performance penalty.
IntStream unboxedChars(), which would to be used for performance code.
However, instead of focusing on why it is done this way currently, I think this answer should focus on showing a way to do it with the...
Is it possible to have multiple statements in a python lambda expression?
...en better: lambda x: [f1(x), f2(x)][-1], it will return calculation result form last expression, as probably expected.
– Anton Ovsyannikov
Aug 29 '19 at 19:05
...
Is 23,148,855,308,184,500 a magic number, or sheer chance?
...n as settlement, and its done by sending a plain text file in a very rigid format. (This was all developed decades ago and the number of systems now using it makes it hard to modernise)
Each transaction appears in the file as a line of text, and part of that is the transaction value. This field sho...
What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
...are passed into the model.
It looks a lot like the whitelisting that was formerly included in ActiveRecord models, but it makes more sense for it to be in the controller.
share
|
improve this answ...