大约有 40,000 项符合查询结果（耗时：0.0626秒） [XML]
Android Layout with ListView and Buttons
...rwise, the layout is not aware of the Buttons yet because it reads them in order, which is why your ListView extends past them.
– Tim H
Mar 6 '10 at 1:54
...
How do I iterate over an NSArray?
...re is one very interesting feature: concurrent enumeration. If enumeration order is not important and the jobs can be done in parallel without locking, this can provide a considerable speedup on a multi-core system. More about that in the concurrent enumeration section.
[myArray enumerateObjectsUsi...
How are 3D games so efficient? [closed]
... a completely full-featured hardware device which is unlikely to exist, in order to show off all the features of the API. But since the hardware doesn't actually exist, it runs on your CPU instead. That's much more inefficient than delegating to a graphics card -- hence your high CPU usage.
...
What Content-Type value should I send for my XML sitemap?
...s+xml or application/rdf+xml, the character encoding is determined in this order:
the encoding given in the charset parameter of the Content-Type HTTP header
the encoding given in the encoding attribute of the XML declaration within the document,
utf-8.
For text/xml, text/xml-external-parsed-ent...
What are the differences between Abstract Factory and Factory design patterns?
...o create objects in a class. It's usually added in the aggregate root (The Order class has a method called CreateOrderLine)
Abstract factory
In the example below we design an interface so that we can decouple queue creation from a messaging system and can therefore create implementations for dif...
What is the “Execute Around” idiom?
...
//... chunk of identical cleanup/finishing code ...
//... and so on.
In order to avoid repeating all of this redundant code that is always executed "around" your actual tasks, you would create a class that takes care of it automatically:
//pseudo-code:
class DoTask()
{
do(task T)
{
...
Constructor function vs Factory functions
...e any additional readability. IMO, it seems silly to jump through hoops in order to enable callers to type more.
– Eric Elliott
Aug 27 '16 at 23:15
|
...
How to get the position of a character in Python?
...for completion, in the case I want to find the extension in a file name in order to check it, I need to find the last '.', in this case use rfind:
path = 'toto.titi.tata..xls'
path.find('.')
4
path.rfind('.')
15
in my case, I use the following, which works whatever the complete file name is:
fil...
Android Archive Library (aar) vs standard jar
..., coming from standard Java development I usually depend on jar files in order to build my project. However it seems that Android has also aar packages, which are the equivalent to the dll files in a Windows OS, as mentioned here :
...
How to get JSON from webpage into Python script
...pen(url).read() is a bytes object. So one has to get the file encoding in order to make it work in Python 3.
In this example we query the headers for the encoding and fall back to utf-8 if we don't get one. The headers object is different between Python 2 and 3 so it has to be done different ways....