大约有 40,000 项符合查询结果（耗时：0.0434秒） [XML]
Using R to list all files with a specified extension
...
add a comment
|
61
...
django admin - add custom form fields that are not part of the model
...forms.ModelForm):
extra_field = forms.CharField()
def save(self, commit=True):
extra_field = self.cleaned_data.get('extra_field', None)
# ...do something with extra_field here...
return super(YourModelForm, self).save(commit=commit)
class Meta:
model = ...
How to change the CHARACTER SET (and COLLATION) throughout a database?
...unicode_
v5.20 -- _unicode_520_
v9.0 -- _0900_ (new)
_bin -- just compare the bits; don't consider case folding, accents, etc
_ci -- explicitly case insensitive (A=a) and implicitly accent insensitive (a=á)
_ai_ci -- explicitly case insensitive and accent insensitive
_as (etc) -- ...
What is the difference between “AS” and “IS” in an Oracle stored procedure?
...
add a comment
|
54
...
How does Haskell printf work?
...ch can actually be formatted. That's where the second type class PrintfArg comes in. So the actual instance is
instance (PrintfArg x, PrintfType r) => PrintfType (x -> r)
Here's a simplified version which takes any number of arguments in the Show class and just prints them:
{-# LANGUAGE Fl...
GoTo Next Iteration in For Loop in java
...
add a comment
|
56
...
SQL Server Output Clause into a scalar variable
...value it is not always possible to know the values ahead of time(identity, computed columns). I understand there are many workaround. Still, you gave me the answer I was looking for. Thanks
– Benoittr
Apr 6 '11 at 20:56
...
JVM option -Xss - What does it do exactly?
...
@instantsetsuna: I think the more common use is probably to increase the default limit. (There's always a limit.) But yes, you're controlling the size of the stack, which controls how deep the stack can get.
– T.J. Crowder
...
Python OpenCV2 (cv2) wrapper to get image size?
...
Oh, come on. Instead of assuming that the image will be BGR or mono, just write generally - h, w = img.shape[:2], especially as the OP is not interested in the depth. (Neither was I). See my answer for more details.
...