大约有 43,000 项符合查询结果（耗时：0.0355秒） [XML]
Why dict.get(key) instead of dict[key]?
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1074
It allows you to provide a default value if the key is missing:
dictionary.get("bogus", default...
How is a CRC32 checksum calculated?
...32 is:
x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
Wikipedia
CRC calculation
Or in hex and binary:
0x 01 04 C1 1D B7
1 0000 0100 1100 0001 0001 1101 1011 0111
The highest term (x32) is usually not explicitly written, so it can instead be represente...
Programmatically generate video or animated GIF in Python?
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edited Jul 21 '16 at 4:03
Matt Bierner
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an...
pip broke. how to fix DistributionNotFound error?
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254
I find this problem in my MacBook, the reason is because as @Stephan said, I use easy_install t...
Define css class in django Forms
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Answered my own question. Sigh
http://docs.djangoproject.com/en/dev/ref/forms/widgets/#django.f...
How to get the last N rows of a pandas DataFrame?
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408
Don't forget DataFrame.tail! e.g. df1.tail(10)
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A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
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147
Here's a walkthrough of how I solved this in my in-app purchase library RMStore. I will explain...
What does `:_*` (colon underscore star) do in Scala?
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4 Answers
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Team city unmet requirement: MSBuildTools12.0_x86_Path exists
...ve a TeamCity install on x32 Server2008 windows machine. I've run the .net 4.5 web install. I've also copied over the files from my x64 machine based on this article so that I didn't need to install vs2012 (though, I did have the change the path to remove x86 on the 32bit machine):
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Split a string by a delimiter in python
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edited Oct 9 '18 at 14:49
Aran-Fey
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answer...