大约有 43,700 项符合查询结果(耗时:0.0281秒) [XML]
Javascript and regex: split string and keep the separator
...
answered Aug 17 '12 at 8:01
JonJon
383k6868 gold badges674674 silver badges755755 bronze badges
...
Call apply-like function on each row of dataframe with multiple arguments from each row
...
12 Answers
12
Active
...
How to find where gem files are installed
...t about your gem environment:
RubyGems Environment:
- RUBYGEMS VERSION: 2.1.5
- RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0]
- INSTALLATION DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- RUBY EXECUTABLE: /Users/ttm/.rbenv/versions/2.0.0-p247/...
C++ preprocessor __VA_ARGS__ number of arguments
...
12 Answers
12
Active
...
What ReSharper 4+ live templates for C# do you use? [closed]
...
1
2
Next
31
...
Is it possible to use 'else' in a list comprehension? [duplicate]
... c. It can be used in comprehension statements:
>>> [a if a else 2 for a in [0,1,0,3]]
[2, 1, 2, 3]
So for your example,
table = ''.join(chr(index) if index in ords_to_keep else replace_with
for index in xrange(15))
...
What is the difference between String.slice and String.substring?
...
882
slice() works like substring() with a few different behaviors.
Syntax: string.slice(start, stop...
How do I replace NA values with zeros in an R dataframe?
...
21 Answers
21
Active
...
Two versions of python on linux. how to make 2.7 the default
...ed by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it?
On top of that, monkeying with /usr/bin can break your package manager's ability to manage packages. And changing the order of directories in your PATH will affect a lot of oth...
Virtualbox “port forward” from Guest to Host [closed]
...
2 Answers
2
Active
...