大约有 40,000 项符合查询结果（耗时：0.0199秒） [XML]
How can I tell gcc not to inline a function?
Say I have this small function in a source file
8 Answers
8
...
Jackson enum Serializing and DeSerializer
...
I really dislike this solution for the simple fact that you introduce two sources of truth. The developer will always have to remember to add the name in two places. I much prefer a solution that just does the right thing without...
How to import a Python class that is in a directory above?
...on __file__ to find out the parent directory (a couple of os.path.dirname calls will do;-), then (if that directory is not already on sys.path) prepend temporarily insert said dir at the very start of sys.path, __import__, remove said dir again -- messy work indeed, but, "when you must, you must" (a...
Hashing a dictionary?
...e hash():
hash(frozenset(my_dict.items()))
This is much less computationally intensive than generating the JSON string or representation of the dictionary.
UPDATE: Please see the comments below, why this approach might not produce a stable result.
...
Calling parent class __init__ with multiple inheritance, what's the right way?
...ing super() leads to greater flexibility for subclasses.
In the direct call approach, C.__init__ can call both A.__init__ and B.__init__.
When using super(), the classes need to be designed for cooperative multiple inheritance where C calls super, which invokes A's code which will also call supe...
What are the differences between poll and select?
I am referring to the POSIX standard select and poll system C API calls.
3 Answers
...
How to send email via Django?
...self an email! The above article mentioned by miku was perfect. Note the small typo correction in the comments of the article. (And I just used my regular computer/localhost. I had not set anything else up before hand.)
– user984003
Oct 24 '12 at 16:11
...
PHP: How to remove all non printable characters in a string?
...to remove other chars...
If you're dealing with Unicode, there are potentially many non-printing elements, but let's consider a simple one: NO-BREAK SPACE (U+00A0)
In a UTF-8 string, this would be encoded as 0xC2A0. You could look for and remove that specific sequence, but with the /u modifier in ...
Getters \ setters for dummies
...
Isnt it really painful that MS does not support JS correctly and they do not make their silverlight run everywhere, so I have to program everything twice, one for SL and one for rest of the world :)
– Akash Kava
...
class
...lass << foo syntax opens up foo's singleton class (eigenclass). This allows you to specialise the behaviour of methods called on that specific object.
a = 'foo'
class << a
def inspect
'"bar"'
end
end
a.inspect # => "bar"
a = 'foo' # new object, new singleton class
a.insp...