大约有 42,000 项符合查询结果（耗时：0.0472秒） [XML]
Is there a math nCr function in python? [duplicate]
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edited Jun 8 at 9:58
L3viathan
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Very Long If Statement in Python [duplicate]
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edited Jul 13 '18 at 8:04
Thiago Figueiro
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ModelSerializer using model property
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edited Aug 6 '19 at 9:12
Stefano Munarini
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How to list all properties of a PowerShell object
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edited Dec 29 '18 at 9:36
Peter Mortensen
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Accessing nested JavaScript objects and arays by string path
...rt3[0].name');
See a working demo at http://jsfiddle.net/alnitak/hEsys/
EDIT some have noticed that this code will throw an error if passed a string where the left-most indexes don't correspond to a correctly nested entry within the object. This is a valid concern, but IMHO best addressed with ...
How to tell if a tag failed to load
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edited Feb 11 '09 at 21:17
answered Feb 11 '09 at 21:12
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How can I check if a string represents an int, without using try/except?
...t work with '16.0' format, which is similar to int casting in this sense.
edit:
def check_int(s):
if s[0] in ('-', '+'):
return s[1:].isdigit()
return s.isdigit()
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How to reshape data from long to wide format
...so does this simply, with gather()/spread() being the terms for melt/cast.
Edit: Now, in 2019, tidyr v 1.0 has launched and set spread and gather on a deprecation path, preferring instead pivot_wider and pivot_longer, which you can find described in this answer. Read on if you want a brief glimpse i...
Why aren't superclass __init__ methods automatically invoked?
Why did the Python designers decide that subclasses' __init__() methods don't automatically call the __init__() methods of their superclasses, as in some other languages? Is the Pythonic and recommended idiom really like the following?
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Navigation bar appear over the views with new iOS7 SDK
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edited Sep 30 '13 at 12:09
answered Aug 7 '13 at 12:44
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