大约有 46,000 项符合查询结果（耗时：0.0555秒） [XML]
?: operator (the 'Elvis operator') in PHP
...
– seeming.amusing
Feb 24 '16 at 16:21
41
A little less operation, a little more expression pleas...
Python - abs vs fabs
...
answered May 27 '12 at 7:21
NPENPE
416k8181 gold badges858858 silver badges949949 bronze badges
...
ASP.NET MVC - Should business logic exist in controllers?
... |
edited Oct 24 '08 at 21:11
answered Oct 24 '08 at 21:00
...
What exactly does the enable-background attribute do?
...
|
edited Aug 21 at 19:51
answered Jan 25 '14 at 21:20
...
Setting Android Theme background color
...ample:
res/values/styles.xml # themes for all versions
res/values-v21/styles.xml # themes for API level 21+ only
Because the styles in the values/styles.xml file are available for all
versions, your themes in values-v21/styles.xml can inherit them. As
such, you can avoid duplica...
How to delete a word and go into insert mode in Vim?
...unctionality.
– Amjith
Sep 4 '09 at 21:52
Whereas 'caw' and 'ciw' will replace the entire word, simply 'cw' will chang...
Select multiple columns in data.table by their numeric indices
...sh O'Brien
144k2424 gold badges318318 silver badges421421 bronze badges
1
...
Can you use hash navigation without affecting history?
...
answered Feb 21 '10 at 7:41
guzartguzart
3,6402525 silver badges2323 bronze badges
...
Django - limiting query results
...
In [20]: l = logging.getLogger('django.db.backends')
In [21]: l.setLevel(logging.DEBUG)
In [22]: l.addHandler(logging.StreamHandler())
In [23]: User.objects.all().order_by('-id')[:10]
(0.000) SELECT "auth_user"."id", "auth_user"."username", "au...
Default value for field in Django model
...
21
You can also use a callable in the default field, such as:
b = models.CharField(max_length=7, ...