大约有 41,310 项符合查询结果（耗时：0.0378秒） [XML]
How to read keyboard-input?
... # If you use Python 2
input('Enter your input:') # If you use Python 3
and if you want to have a numeric value
just convert it:
try:
mode=int(raw_input('Input:'))
except ValueError:
print "Not a number"
s...
How to sort objects by multiple keys in Python?
... case you like your code terse.
Later 2016-01-17
This works with python3 (which eliminated the cmp argument to sort):
from operator import itemgetter as i
from functools import cmp_to_key
def cmp(x, y):
"""
Replacement for built-in function cmp that was removed in Python 3
Compare...
How to get subarray from array?
I have var ar = [1, 2, 3, 4, 5] and want some function getSubarray(array, fromIndex, toIndex) , that result of call getSubarray(ar, 1, 3) is new array [2, 3, 4] .
...
How do I rename the extension for a bunch of files?
...
390
For an better solution (with only bash functionality, as opposed to external calls), see one o...
How to add a search box with icon to the navbar in Bootstrap 3?
I am using the new Twitter Bootstrap 3, and am trying to place a search box like this (below) in the top navbar :
6 Answer...
Using awk to print all columns from the nth to the last
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edited Apr 8 '15 at 13:01
fedorqui 'SO stop harming'
212k7373 gold badges432432 silver badges485485 bronze badges
...
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...
Newline in markdown table?
...
364
Use <br> to force a line break within a table cell.
Markdown Extra and MultiMarkdown al...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...
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edited Apr 23 '18 at 5:23
StoryTeller - Unslander Monica
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...
Regex how to match an optional character
...
You could improve your regex to
^([0-9]{5})+\s+([A-Z]?)\s+([A-Z])([0-9]{3})([0-9]{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])[0-9]{3}([0-9]{4})([0-9]{2})([0-9]{2})
And, since in most regex dialects, \d is the same as [0-9]:
^(\d{5})+\s+([A-Z]?)\s+([A-Z])(\d{3})(\d{3})([A-Z]{3})([A-Z]{3})\s+([A-Z])\d{3}(...