大约有 40,000 项符合查询结果（耗时：0.0505秒） [XML]
Is it more efficient to copy a vector by reserving and copying, or by creating and swapping? [duplic
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They aren't the same though, are they? One is a copy, the other is a swap. Hence the function names.
My favourite is:
a = b;
Where a and b are vectors.
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How do I find the current executable filename? [duplicate]
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This one tends to add ".vhost." in the filename, an issue not present if using System.Reflection.Assembly.GetEntryAssembly().Location (see alternate answer).
– Contango
Aug 2 '12 at 15:59
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How to check if an object is an array?
...ing. If it's a string, then I want to convert it to an array with just the one item so I can loop over it without fear of an error.
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Passing functions with arguments to another function in Python?
... What about named parameters? That is, def action1(arg1, arg2=None, arg3=None), how could you pass an argument that you intend to be assigned to arg3, for instance?
– ChaimKut
Aug 19 '14 at 9:54
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Query for documents where array size is greater than 1
...javascript in the query, json can be cumbersome. Many of these queries are one time only entered by hand so optimization is not required. I'll use this trick often +1
– pferrel
Mar 20 '14 at 15:37
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Code Golf: Collatz Conjecture
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why is this accepted? it's not the shortest one and it doesn't print the first number
– Claudiu
Mar 8 '10 at 6:25
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Double Iteration in List Comprehension
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I hope this helps someone else since a,b,x,y don't have much meaning to me! Suppose you have a text full of sentences and you want an array of words.
# Without list comprehension
list_of_words = []
for sentence in text:
for word in sentence:
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Using global variables between files?
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wow, normally one would expect two files importing each other to get into an infinite loop.
– Nikhil VJ
Aug 24 '18 at 4:11
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Is it possible to implement a Python for range loop without an iterator variable?
...ason, I would not use it in this manner. I am unaware of any idiom as mentioned by Ryan. It can mess up your interpreter.
>>> for _ in xrange(10): pass
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>>> _
9
>>> 1+2
3
>>> _
9
And according to Python grammar, it is an acceptable variable name:
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How can I bring my application window to the front? [duplicate]
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of all the methods I've found using Google, and everyone's constant insistence that activation and focus where the key. This was the only approach that worked for me. Thank you, as I would never of thought of this trick.
– Reactgular
Sep 2...