大约有 44,600 项符合查询结果（耗时：0.0410秒） [XML]
How to access the ith column of a NumPy multidimensional array?
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724
>>> test[:,0]
array([1, 3, 5])
Similarly,
>>> test[1,:]
array([3, 4])
l...
Are there any standard exit status codes in Linux?
...f the killing signal are mixed into a single value on the return from wait(2) & co..
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>
int main() {
int status;
pid_t child = f...
Python timedelta in years
...lace(year=from_date.year - years)
except ValueError:
# Must be 2/29!
assert from_date.month == 2 and from_date.day == 29 # can be removed
return from_date.replace(month=2, day=28,
year=from_date.year-years)
If it's 2/29, and 18 years ago...
HTML5 Pre-resize images before uploading
...e.target.result}
reader.readAsDataURL(file);
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var MAX_WIDTH = 800;
var MAX_HEIGHT = 600;
var width = img.width;
var height = img.height;
if (width > height) {
if (width > MAX_WIDTH) {
height *= MAX_WIDTH / width;
width = ...
Can't update Macports (with Mac OS X Mavericks)
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282
Install the "Command Line Tools" first:
sudo xcode-select --install
(Explicitly agreeing to...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
...':
the_thing = 1
elif something == 'that':
the_thing = 2
elif something == 'there':
the_thing = 3
else:
the_thing = 4
2.py
something = 'something'
options = {'this': 1, 'that': 2, 'there': 3}
for i in xrange(1000000):
the_thing = options.get(someth...
Overriding id on create in ActiveRecord
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answered Oct 2 '09 at 20:55
Jeff DeanJeff Dean
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Invalid syntax when using “print”? [duplicate]
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232
That is because in Python 3, they have replaced the print statement with the print function.
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Python - Count elements in list [duplicate]
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edited Dec 4 '14 at 23:26
Charlie
6,5134545 silver badges5050 bronze badges
answered Nov 9 '10 at ...
How do we determine the number of days for a given month in python [duplicate]
...ulate the number of days for a given month in python. If a user inputs Feb 2011 the program should be able to tell me that Feb 2011 has 28 days. Could any one tell me which library I should use to determine the length of a given month.
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