大约有 47,000 项符合查询结果（耗时：0.0544秒） [XML]
Operation on every pair of element in a list
... module. It does exactly what you describe.
import itertools
my_list = [1,2,3,4]
for pair in itertools.product(my_list, repeat=2):
foo(*pair)
This is equivalent to:
my_list = [1,2,3,4]
for x in my_list:
for y in my_list:
foo(x, y)
Edit: There are two very similar functions as...
How do I use valgrind to find memory leaks?
...\
--log-file=valgrind-out.txt \
./executable exampleParam1
The flags are, in short:
--leak-check=full: "each individual leak will be shown in detail"
--show-leak-kinds=all: Show all of "definite, indirect, possible, reachable" leak kinds in the "full" report.
--track-origins=ye...
What's the difference between echo, print, and print_r in PHP?
...
11 Answers
11
Active
...
Date.getDay() javascript returns wrong day
...y getDay is an integer corresponding to the day of the week: 0 for Sunday, 1 for Monday, 2 for Tuesday, and so on.
share
|
improve this answer
|
follow
|
...
Determine the path of the executing BASH script [duplicate]
...
166
For the relative path (i.e. the direct equivalent of Windows' %~dp0):
MY_PATH="`dirname \"$0\...
Maven Snapshot Repository vs Release Repository
...ring development. A Snapshot artifact has both a version number such as “1.3.0” or “1.3” and a timestamp. For example, a snapshot artifact for commons-lang 1.3.0 might have the name commons-lang-1.3.0-20090314.182342-1.jar.
Taken from refcard
...
Replace all elements of Python NumPy Array that are greater than some value
...eplacing all values >0.5 with 5, and it took an average of 7.59ms.
In [1]: import numpy as np
In [2]: A = np.random.rand(500, 500)
In [3]: timeit A[A > 0.5] = 5
100 loops, best of 3: 7.59 ms per loop
share
|...
Does C have a “foreach” loop construct?
...
12 Answers
12
Active
...
Alternatives to gprof [closed]
...
|
edited Jan 18 '11 at 16:59
Peter Mortensen
26.5k2121 gold badges9292 silver badges122122 bronze badges
...
Question mark and colon in JavaScript
...
|
edited May 25 '16 at 22:50
Felix Kling
666k151151 gold badges968968 silver badges10321032 bronze badges
...