大约有 30,000 项符合查询结果（耗时：0.0568秒） [XML]
Can I load a UIImage from a URL?
...llpaper.net/iphone/img/app/i/p/iphone-4s-wallpapers-mobile-backgrounds-dark_2466f886de3472ef1fa968033f1da3e1_raw_1087fae1932cec8837695934b7eb1250_raw.jpg");
var err: NSError?
var imageData :NSData = NSData.dataWithContentsOfURL(url,options: NSDataReadingOptions.DataReadingMappedIfSafe, error...
Split files using tar, gz, zip, or bzip2 [closed]
...is very close to the content of this answer:
# create archives
$ tar cz my_large_file_1 my_large_file_2 | split -b 1024MiB - myfiles_split.tgz_
# uncompress
$ cat myfiles_split.tgz_* | tar xz
This solution avoids the need to use an intermediate large file when (de)compressing. Use the tar -C opti...
How to crop circular area from bitmap in Android
...createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
paint.setAntiAlias(true...
“Delegate subtraction has unpredictable result” in ReSharper/C#?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
How to validate an email address in JavaScript
...s these email addresses: %2@gmail.com, "%2"@gmail.com, "a..b"@gmail.com, "a_b"@gmail.com, _@gmail.com, 1@gmail.com , 1_example@something.gmail.com are all valid, but Gmail will never allow any of these email addresses. You should do this by accepting the email address and sending an email message to...
How do I design a class in Python?
...function so that it only happens once. Something like:
class Dog:
def __init__(self):
self._footsteps=None
def footstep(self,n):
if not self._footsteps:
self.readInFootsteps(...)
return self._footsteps[n]
[This is now a sort of caching pattern. The first time it goe...
Inserting a tab character into text using C#
...at is NOT ALWAYS correctly aligned.
Example in VB.Net:
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.Text = "Bernard" + vbTab + "32"
TextBox2.Text = "Luc" + vbTab + "47"
TextBox3.Text = "François-Victor" + vbTab + "12"
End Sub
will display
...
Generating random numbers in Objective-C
...
You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You don't even need to set a seed.
#include <stdlib.h>
// ...
// ...
int r = arc4random_uniform(74);
The arc4random man page:
NAME
arc4random, arc4ran...
module.exports vs exports in Node.js
...
Setting module.exports allows the database_module function to be called like a function when required. Simply setting exports wouldn't allow the function to be
exported because node exports the object module.exports references. The following code wouldn't allow the...
How to var_dump variables in twig templates?
...I'm using latest version of Symfony 2.5, and have the config.yml and config_dev.yml setup and debug mode turned on when loading the kernel for the dev environment. I've tried the other manual methods mentioned by Morland below. Either way, I also get a blank page when dump is used. And no dump.
...