大约有 41,300 项符合查询结果（耗时：0.0529秒） [XML]
How to empty a list?
...bel with a new empty list:
del lst[:]
Here's an example:
lst1 = [1, 2, 3]
lst2 = lst1
del lst1[:]
print(lst2)
For the sake of completeness, the slice assignment has the same effect:
lst[:] = []
It can also be used to shrink a part of the list while replacing a part at the same time (but tha...
Array include any value from another array?
...
NakilonNakilon
31.1k1212 gold badges9494 silver badges125125 bronze badges
...
How to create a loop in bash that is waiting for a webserver to respond?
...
edited Apr 18 '14 at 15:43
Serge Stroobandt
17.2k88 gold badges7676 silver badges7676 bronze badges
ans...
What is sr-only in Bootstrap 3?
... community wiki
8 revs, 6 users 73%anon
13
...
How long is the SHA256 hash?
...
346
A sha256 is 256 bits long -- as its name indicates.
Since sha256 returns a hexadecimal repres...
UITableView with fixed section headers
...
307
The headers only remain fixed when the UITableViewStyle property of the table is set to UITabl...
Python Sets vs Lists
...
236
It depends on what you are intending to do with it.
Sets are significantly faster when it come...
In R, how to get an object's name after it is sent to a function?
...
3 Answers
3
Active
...
Creating my own Iterators
...
Chinasaur
1,96222 gold badges1313 silver badges1717 bronze badges
answered Sep 29 '08 at 15:34
RoelRoel
17.8...