大约有 45,000 项符合查询结果(耗时:0.0670秒) [XML]
Get the week start date and week end date from week number
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162
You can find the day of week and do a date add on days to get the start and end dates..
DATEADD...
Regular expression to match URLs in Java
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edited Sep 29 '13 at 20:09
Alan Moore
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
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How can I use numpy.correlate to do autocorrelation?
... result = numpy.correlate(x, x, mode='full')
return result[result.size/2:]
You will, of course, need error checking to make sure that x is actually a 1-d array. Also, this explanation probably isn't the most mathematically rigorous. I've been throwing around infinities because the definition o...
How can I convert a hex string to a byte array? [duplicate]
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Here's a nice fun LINQ example.
public static byte[] StringToByteArray(string hex) {
return...
Python, compute list difference
... matter, you can simply calculate the set difference:
>>> set([1,2,3,4]) - set([2,5])
set([1, 4, 3])
>>> set([2,5]) - set([1,2,3,4])
set([5])
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Output data from all columns in a dataframe in pandas [duplicate]
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42
There is too much data to be displayed on the screen, therefore a summary is displayed instead.
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Are Javascript arrays sparse?
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edited May 23 '17 at 11:54
Community♦
111 silver badge
answered Oct 2 '09 at 17:21
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What are “named tuples” in Python?
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Named tuples are basically easy-to-create, lightweight object types. Named tuple instances ca...
How do I use the includes method in lodash to check if an object is in the collection?
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The includes (formerly called contains and include) method compares objects by reference (or m...
