大约有 48,000 项符合查询结果（耗时：0.0558秒） [XML]
What is a lambda expression in C++11?
...ard benefits heavily from lambdas and raises the usability several bars as now users don't have to clutter their code with small functors in some accessible scope.
C++14
In C++14 lambdas have been extended by various proposals.
Initialized Lambda Captures
An element of the capture list can now b...
Maven compile with multiple src directories
... This was a good idea a couple years ago but there are much better options now. build-helper listed above is my preferred options.
– sal
May 6 '11 at 1:51
5
...
What's this =! operator? [duplicate]
...ls' operator. This usage was deprecated by the creation of Standard C, so now it means 'assign the logical inverse', as in a = !b. This is a good argument for always surrounding binary operators with spaces, just to make it clear to the humans reading the code what the compiler is thinking.
I'm a...
How to “crop” a rectangular image into a square with CSS?
I know that it is impossible to actually modify an image with CSS, which is why I put crop in quotes.
10 Answers
...
Django South - table already exists
...re is more than one field missing you have to repeat it for each field.
3.Now you land with a bunch of new migrations so remove their files from myapp/migrations (0011 and further if you needed to add multiple fields).
4.Run this:
./manage.py migrate myapp 0010
Now try ./manage.py migrate myapp...
How can I show line numbers in Eclipse?
...I wrote this long ago but as @ArtOfWarfar and @voidstate mentioned you can now simply:
Right click the gutter and select "Show Line Numbers":
share
|
improve this answer
|
...
iOS: UIButton resize according to text length
...
In Xcode 4.5 and above, this can now be done by using 'Auto-layouting / Constraints'.
Major advantages are that:
You don't need to programmatically set frames at all!
If done right, you don't need to bother about resetting frames for orientation changes....
How to wait for a BackgroundWorker to cancel?
...= "Rocket launch aborted.";
}
worker = null;
}
And all is good.
Now comes a situation where the caller needs to abort the countdown because they need to execute an emergency self-destruct of the rocket.
private void BlowUpRocket()
{
if (worker != null)
{
worker.CancelAsyn...
How do I run Asynchronous callbacks in Playground
...
guard let data = data, error == nil else {
print(error ?? "Unknown error")
return
}
let contents = String(data: data, encoding: .utf8)
print(contents!)
}.resume()
PlaygroundPage.current.needsIndefiniteExecution = true
Or in Swift 2:
import UIKit
import XCPlaygro...
How to programmatically create and read WEP/EAP WiFi configurations in Android?
...epKeys[3]);
}
Part 3: Read a EAP WiFi Configuration programmatically
Now this is tricky. You can find the code which saves a EAP WiFi configuration through the vanilla Android UI in WifiDialog.java. Well easy enough We can use the same code in our Application, Well NO! If you happen to try thi...