大约有 43,630 项符合查询结果(耗时:0.0461秒) [XML]

https://stackoverflow.com/ques... 

What ReSharper 4+ live templates for C# do you use? [closed]

... 1 2 Next 31 ...
https://stackoverflow.com/ques... 

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)) ...
https://stackoverflow.com/ques... 

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...
https://stackoverflow.com/ques... 

How do I replace NA values with zeros in an R dataframe?

... 21 Answers 21 Active ...
https://stackoverflow.com/ques... 

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...
https://stackoverflow.com/ques... 

Virtualbox “port forward” from Guest to Host [closed]

... 2 Answers 2 Active ...
https://stackoverflow.com/ques... 

AWS ssh access 'Permission denied (publickey)' issue [closed]

... 20 Answers 20 Active ...
https://stackoverflow.com/ques... 

Numbering rows within groups in a data frame

... 284 Use ave, ddply, dplyr or data.table: df$num <- ave(df$val, df$cat, FUN = seq_along) or: ...
https://stackoverflow.com/ques... 

Check if all elements in a list are identical

... 26 Answers 26 Active ...
https://stackoverflow.com/ques... 

How to split a string in shell and get the last field

Suppose I have the string 1:2:3:4:5 and I want to get its last field ( 5 in this case). How do I do that using Bash? I tried cut , but I don't know how to specify the last field with -f . ...