大约有 47,000 项符合查询结果（耗时：0.0651秒） [XML]
What does the 'b' character do in front of a string literal?
...
Actually, if you've imported unicode_literals from __future__, this will "reverse" the behavior for this particular string (in Python 2.x)
– Romuald Brunet
Mar 14 '13 at 16:27
...
Animate change of view controllers without using navigation controller stack, subviews or modal cont
...KeyAndVisible];
return YES;
}
To transition to a new view controller from any view controller
- (IBAction)flipToView
{
anotherViewController *vc = [[AnotherViewController alloc] init...];
MyAppDelegate *appDelegate = [UIApplication sharedApplication].delegate;
[appDelegate.transit...
What's the best way to distribute Java applications? [closed]
...n Webstart: As long as the user has a version of Java installed that's not from the stone age (e. g. 1.2) webstart can be told to download and install a newer Java version of the one you require for your program is not there yet. Look at the .jnlp file syntax. Of course it still quite prominently di...
BaseException.message deprecated in Python 2.6
...
Solution - almost no coding needed
Just inherit your exception class from Exception and pass the message as the first parameter to the constructor
Example:
class MyException(Exception):
"""My documentation"""
try:
raise MyException('my detailed description')
except MyException as my:
...
How to change the type of a field?
I am trying to change the type of a field from within the mongo shell.
14 Answers
14
...
How to set environment variables from within package.json
How to set some environment variables from within package.json to be used with npm start like commands?
14 Answers
...
How to get parameters from the URL with JSP
In JSP how do I get parameters from the URL?
9 Answers
9
...
Why can Java Collections not directly store Primitives types?
...me consider a mistake. Containers want Objects and primitives don't derive from Object.
This is one place that .NET designers learned from the JVM and implemented value types and generics such that boxing is eliminated in many cases. In CLR, generic containers can store value types as part of the u...
Inherit from a generic base class, apply a constraint, and implement an interface in C#
This is a syntax question. I have a generic class which is inheriting from a generic base class and is applying a constraint to one of the type parameters. I also want the derived class to implement an interface. For the life of me, I cannot seem to figure out the correct syntax.
...
Get Output From the logging Module in IPython Notebook
...If you still want to use basicConfig, reload the logging module like this
from importlib import reload # Not needed in Python 2
import logging
reload(logging)
logging.basicConfig(format='%(asctime)s %(levelname)s:%(message)s', level=logging.DEBUG, datefmt='%I:%M:%S')
...