大约有 41,200 项符合查询结果(耗时:0.0552秒) [XML]
How to convert an array of strings to an array of floats in numpy?
... list_of_strings)) (or equivalently, use a list comprehension). (In Python 3, you'll need to call list on the map return value if you use map, since map returns an iterator now.)
However, if it's already a numpy array of strings, there's a better way. Use astype().
import numpy as np
x = np.array...
Is it possible to use 'else' in a list comprehension? [duplicate]
...
337
The syntax a if b else c is a ternary operator in Python that evaluates to a if the condition ...
Common elements in two lists
...
163
Use Collection#retainAll().
listA.retainAll(listB);
// listA now contains only the elements whi...
Iterating through a list in reverse order in java
...
answered Jan 20 '10 at 15:34
John FeminellaJohn Feminella
271k3939 gold badges320320 silver badges337337 bronze badges
...
What is the iPad user agent?
...
Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10
share
|
im...
Validate phone number with JavaScript
...ctly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
26 Answers
...
Regular expression for matching latitude/longitude coordinates?
...
Miha_x64
3,92511 gold badge2828 silver badges5454 bronze badges
answered Aug 19 '10 at 3:38
Eric CEric C
...
Remove all values within one list from another list? [duplicate]
...
>>> a = range(1, 10)
>>> [x for x in a if x not in [2, 3, 7]]
[1, 4, 5, 6, 8, 9]
share
|
improve this answer
|
follow
|
...
linq query to return distinct field values from a list of objects
...
|
edited Jun 3 '11 at 19:01
answered Jun 3 '11 at 18:49
...
Double Iteration in List Comprehension
...
answered Apr 20 '16 at 5:34
SkamSkam
4,23633 gold badges1717 silver badges2929 bronze badges
...