大约有 39,000 项符合查询结果(耗时:0.0503秒) [XML]
Filtering a list based on a list of booleans
...gt;>> %timeit list(compress(list_a, fil))
100000 loops, best of 3: 2.58 us per loop
>>> %timeit [i for (i, v) in zip(list_a, fil) if v] #winner
100000 loops, best of 3: 1.98 us per loop
>>> list_a = [1, 2, 4, 6]*100
>>> fil = [True, False, True, False]*100
>>...
What is an SDL renderer?
... Stevoisiak
13.9k1616 gold badges9191 silver badges153153 bronze badges
answered Jan 8 '14 at 21:59
olevegardolevegard
4,54511 gol...
How to show all privileges from a user in oracle?
...
Justin CaveJustin Cave
205k1919 gold badges331331 silver badges353353 bronze badges
...
Select distinct values from a table field
...Shop'
class Shop(models.Model):
street = models.CharField(max_length=150)
city = models.CharField(max_length=150)
# some of your models may have explicit ordering
class Meta:
ordering = ('city')
Since you may have the Meta class ordering attribute set, you can use order_b...
Align button at the bottom of div using CSS
... |
edited Apr 16 '15 at 6:35
answered Apr 28 '11 at 10:36
...
Correct way to delete cookies server-side
...
5 Answers
5
Active
...
django: BooleanField, how to set the default value to true?
... |
edited Jun 2 '19 at 20:56
user8193706
33122 silver badges99 bronze badges
answered Mar 4 '11 at 6:29
...
Return rows in random order [duplicate]
...
Arsen Mkrtchyan
45.9k2929 gold badges141141 silver badges177177 bronze badges
answered Jul 13 '09 at 5:02
Dave BarkerD...
