大约有 40,000 项符合查询结果（耗时：0.0349秒） [XML]
How do I get the day of week given a date?
...
Use weekday():
>>> import datetime
>>> datetime.datetime.today()
datetime.datetime(2012, 3, 23, 23, 24, 55, 173504)
>>> datetime.datetime.today().weekday()
4
From the documentation:
Return the day of the week as ...
Saving results with headers in Sql Server Management Studio
...
Tools > Options > Query Results > SQL Server > Results to Text (or Grid if you want) > Include columns headers in the result set
You might need to close and reopen SSMS after changing this option.
On the SQL Editor ...
What is the best way to convert an array to a hash in Ruby
...
from (irb):10
The constructor was expecting an Array of even length (e.g. ['k1','v1,'k2','v2']). What's worse is that a different Array which flattened to an even length would just silently give us a Hash with incorrect values.
If you want to use Array keys or values, you can use map:
...
python date of the previous month
... that, you can use relativedelta, it's an improved version of timedelta.
>>> import datetime
>>> import dateutil.relativedelta
>>> now = datetime.datetime.now()
>>> print now
2012-03-15 12:33:04.281248
>>> print now + dateutil.relativedelta.relativedelt...
an htop-like tool to display disk activity in linux [closed]
... ?
?sda 0% 0.0 127.9|> | ?
?sda1 1% 0.0 127.9|> | ...
What is the difference between the dot (.) operator and -> in C++? [duplicate]
...
foo->bar() is the same as (*foo).bar().
The parenthesizes above are necessary because of the binding strength of the * and . operators.
*foo.bar() wouldn't work because Dot (.) operator is evaluated first (see operator prec...
ReSharper - force curly braces around single line
... to R# 2.0 help). The specific procedure is as follows:
Go to ReSharper > Options > Languages > C# > Formatting Style > Braces Layout
Set "Braces in "if-else" statement" to "Use braces for multiline"
After saving the changes, select a scope to reformat (could be a code selection, fi...
How to avoid “RuntimeError: dictionary changed size during iteration” error?
... use dictionary comprehension to copy the relevant items into a new dict
>>> d
{'a': [1], 'c': [], 'b': [1, 2], 'd': []}
>>> d = { k : v for k,v in d.iteritems() if v}
>>> d
{'a': [1], 'b': [1, 2]}
For this in Python 3
>>> d
{'a': [1], 'c': [], 'b': [1, 2], '...
Using python map and other functional tools
...ference in how it handles the case where the sequences are of different length. As you saw, map() fills in None when one of the sequences runs out, whereas zip() stops when the shortest sequence stops)
So, to address your specific question, you're trying to produce the result:
foos[0], bars
foos[...
Python OpenCV2 (cv2) wrapper to get image size?
...mpy.shape. Assuming you are working with BGR images, here is an example:
>>> import numpy as np
>>> import cv2
>>> img = cv2.imread('foo.jpg')
>>> height, width, channels = img.shape
>>> print height, width, channels
600 800 3
In case you were workin...