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解决：error while loading shared libraries: libpcre.so.1: cannot open ...
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[root@info lib]# ldd /usr/local/apache2/bin/httpd
libaprutil-0.so.0 => /usr/local/apache2/lib/libaprutil-0.so.0 (0x00242000)
libexpat.so.0 => /usr/lib/libexpat.so.0 (0x00554000)
libapr-0.so.0 => /usr/local/apache2/lib/libapr-0.so.0 (0x007e2000)
librt.so.1 ...
How to set child process' environment variable in Makefile
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answered May 24 '14 at 13:06
MadScientistMadScientist
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Ruby on Rails console is hanging when loading
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answered Aug 7 '14 at 0:53
cee-dubcee-dub
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PowerMockito mock single static method and return object
...thod call.
The default default stubbing strategy is to just return null, 0 or false for object, number and boolean valued methods. By using the 2-arg overload, you're saying "No, no, no, by default use this Answer subclass' answer method to get a default value. It returns a Long, so if you have ...
Format numbers to strings in Python
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Starting with Python 3.6, formatting in Python can be done using formatted string literals or f-...
Error: Jump to case label
...tialization* code was run, though,
// depends on whether rand returned 0 or 1.
std::cout << i;
}
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Converting Python dict to kwargs?
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answered Apr 19 '11 at 0:48
unutbuunutbu
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Where is the syntax for TypeScript comments documented?
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edited Apr 27 '19 at 14:07
slideshowp2
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Replacing column values in a pandas DataFrame
... something like this:
w['female'] = w['female'].map({'female': 1, 'male': 0})
(Here I convert the values to numbers instead of strings containing numbers. You can convert them to "1" and "0", if you really want, but I'm not sure why you'd want that.)
The reason your code doesn't work is because...
Assigning default value while creating migration file
...olumn :tweet, :retweets_count, :integer, :null => false, :default => 0
... and read Rails API
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