大约有 40,000 项符合查询结果（耗时：0.0570秒） [XML]
Can the :not() pseudo-class have multiple arguments?
...
|
show 5 more comments
51
...
Django dynamic model fields
...tively attach/detach dynamic attribute storage to Django model with simple commands like:
eav.unregister(Encounter)
eav.register(Patient)
Nicely integrates with Django admin;
At the same time being really powerful.
Downsides:
Not very efficient. This is more of a criticism of the EAV pattern ...
How to get Enum Value from index in Java?
...
add a comment
|
20
...
Routing: The current request for action […] is ambiguous between the following action methods
...ethod (or vice versa), and this algoritm is not strongly-typed.
You can accomplish what you want using custom routes pointing to different action methods:
... in Global.asax
routes.MapRoute( // this route must be declared first, before the one below it
"StartBrowse",
"Gallery/Browse/Sta...
String formatting in Python 3
... of doing it using a single argument twice (as @Burhan Khalid noted in the comments):
"({0.goals} goals, ${0.penalties})".format(self)
Explaining:
{} means just the next positional argument, with default format;
{0} means the argument with index 0, with default format;
{:d} is the next position...
Do regular expressions from the re module support word boundaries (\b)?
...
Why don't you try
word = 'two'
re.compile(r'\b%s\b' % word, re.I)
Output:
>>> word = 'two'
>>> k = re.compile(r'\b%s\b' % word, re.I)
>>> x = 'one two three'
>>> y = k.search( x)
>>> y
<_sre.SRE_Match object ...
Haskell: Where vs. Let
... vs. Let . They both seem to provide a similar purpose. I have read a few comparisons between Where vs. Let but I am having trouble discerning when to use each. Could someone please provide some context or perhaps a few examples that demonstrate when to use one over the other?
...
What is the difference between inversedBy and mappedBy?
...the yaml example of a many-to-one bidirectional mapping, probably the most commonly used!
– Peter Wooster
Jan 21 '13 at 21:46
4
...