大约有 45,000 项符合查询结果(耗时:0.0670秒) [XML]

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Get the week start date and week end date from week number

... 162 You can find the day of week and do a date add on days to get the start and end dates.. DATEADD...
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Regular expression to match URLs in Java

... | edited Sep 29 '13 at 20:09 Alan Moore 66.6k1111 gold badges8787 silver badges145145 bronze badges ...
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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') share | improve this answer | follow | ...
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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...
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How can I convert a hex string to a byte array? [duplicate]

... 502 Here's a nice fun LINQ example. public static byte[] StringToByteArray(string hex) { return...
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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]) share | improve this answer ...
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Output data from all columns in a dataframe in pandas [duplicate]

... 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?

... | 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?

... 1224 Named tuples are basically easy-to-create, lightweight object types. Named tuple instances ca...
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How do I use the includes method in lodash to check if an object is in the collection?

... 226 The includes (formerly called contains and include) method compares objects by reference (or m...