大约有 37,000 项符合查询结果（耗时：0.0593秒） [XML]
Read Excel File in Python
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70
This is one approach:
from xlrd import open_workbook
class Arm(object):
def __init__(self,...
WPF Timer Like C# Timer
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330
The usual WPF timer is the DispatcherTimer, which is not a control but used in code. It basicall...
How can you check which options vim was compiled with?
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100
You can see everything vim was compiled with by executing
:version
To query for an exact fea...
Binding ConverterParameter
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305
The ConverterParameter property can not be bound because it is not a dependency property.
Sinc...
'size_t' vs 'container::size_type'
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108
The standard containers define size_type as a typedef to Allocator::size_type (Allocator is a t...
In Python, how do I use urllib to see if a website is 404 or 200?
...a=urllib.urlopen('http://www.google.com/asdfsf')
>>> a.getcode()
404
>>> a=urllib.urlopen('http://www.google.com/')
>>> a.getcode()
200
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Add column with number of days between dates in DataFrame pandas
...'] - df['B']
In [14]: df
Out[14]:
A B C
one 2014-01-01 2014-02-28 -58 days
two 2014-02-03 2014-03-01 -26 days
Note: ensure you're using a new of pandas (e.g. 0.13.1), this may not work in older versions.
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Algorithm to find Largest prime factor of a number
... very fast in general.
The best known method for factoring numbers up to 100 digits long is the Quadratic sieve. As a bonus, part of the algorithm is easily done with parallel processing.
Yet another algorithm I've heard of is Pollard's Rho algorithm. It's not as efficient as the Quadratic Sieve i...
In SQL, how can you “group by” in ranges?
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Neither of the highest voted answers are correct on SQL Server 2000. Perhaps they were using a different version.
Here are the correct versions of both of them on SQL Server 2000.
select t.range as [score range], count(*) as [number of occurences]
from (
select case
when score bet...
How do I set the default font size in Vim?
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202
For the first one remove the spaces. Whitespace matters for the set command.
set guifont=Monac...