大约有 40,000 项符合查询结果（耗时：0.0513秒） [XML]
Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...r retain.
This is a good website to learn about strong and weak for iOS 5.
http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1
Weak
weak is similar to strong except that it won't increase the reference count by 1. It does not become an owner of that object but just holds a reference to i...
Returning binary file from controller in ASP.NET Web API
...
Try using a simple HttpResponseMessage with its Content property set to a StreamContent:
// using System.IO;
// using System.Net.Http;
// using System.Net.Http.Headers;
public HttpResponseMessage Post(string version, string environment,
s...
Routes with Dash `-` Instead of Underscore `_` in Ruby on Rails
... private APIs is not recommended and may break in future Rails versions.
# https://github.com/rails/rails/blob/4-1-stable/actionpack/lib/action_dispatch/routing/mapper.rb#L1012
#
# config/initializers/adjust-route-paths.rb
module ActionDispatch
module Routing
class Mapper
module Resource...
How to throw an exception in C?
...n C it's guaranteed there won't be exceptions,how?
– httpinterpret
May 23 '10 at 12:55
63
@httpin...
How can I hash a password in Java?
...urrently by multiple threads.
*
* @author erickson
* @see <a href="http://stackoverflow.com/a/2861125/3474">StackOverflow</a>
*/
public final class PasswordAuthentication
{
/**
* Each token produced by this class uses this identifier as a prefix.
*/
public static final S...
e.printStackTrace equivalent in python
... an except ...: block it will automatically use the current exception. See http://docs.python.org/library/traceback.html for more information.
share
|
improve this answer
|
f...
Can I have multiple Xcode versions installed?
...l downloaded versions, but it probably doesn't make a big difference. See http://developer.apple.com/documentation/Xcode/Conceptual/XcodeCoexistence/Contents/Resources/en.lproj/Details/Details.html this Apple Developer Connection page for lots of details. <- Page does not exist anymore!
...
How do I install cygwin components from the command line?
...ately, but it is not entirely stable and
relies on workarounds.
apt-cyg: http://github.com/transcode-open/apt-cyg
Check out the issues tab for the project to see the known problems.
share
|
impro...
When I catch an exception, how do I get the type, file, and line number?
...e replaced by a call to test() which did 1/0.)
try:
1/0
except:
# http://docs.python.org/2/library/sys.html#sys.exc_info
exc_type, exc_value, exc_traceback = sys.exc_info() # most recent (if any) by default
'''
Reason this _can_ be bad: If an (unhandled) exception happens AFTER...
How to send an email with Gmail as provider using Python?
...but my user name / pass was correct. Here is what fixed it. I read this:
https://support.google.com/accounts/answer/6010255
In a nutshell, google is not allowing you to log in via smtplib because it has flagged this sort of login as "less secure", so what you have to do is go to this link while y...