大约有 41,200 项符合查询结果（耗时：0.0313秒） [XML]
How to get cumulative sum
...
230
select t1.id, t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= t...
Version number comparison in Python
...
37
Remove the uninteresting part of the string (trailing zeroes and dots), and then compare the li...
Split list into smaller lists (split in half)
...
238
A = [1,2,3,4,5,6]
B = A[:len(A)//2]
C = A[len(A)//2:]
If you want a function:
def split_list...
How to check if hex color is “too black”?
...
AlnitakAlnitak
303k6767 gold badges370370 silver badges458458 bronze badges
...
Is there a zip-like function that pads to longest length in Python?
...
In Python 3 you can use itertools.zip_longest
>>> list(itertools.zip_longest(a, b, c))
[('a1', 'b1', 'c1'), (None, 'b2', 'c2'), (None, 'b3', None)]
You can pad with a different value than None by using the fillvalue paramet...
Fastest hash for non-cryptographic uses?
...
13 Answers
13
Active
...
Pandas - How to flatten a hierarchical index in columns
...|
edited Jan 17 '14 at 19:36
answered Jan 24 '13 at 18:37
A...
Python element-wise tuple operations like sum
...
138
import operator
tuple(map(operator.add, a, b))
...
Is there a NumPy function to return the first index of something in an array?
...
13 Answers
13
Active
...