大约有 11,400 项符合查询结果（耗时：0.0158秒） [XML]
Understanding dict.copy() - shallow or deep?
... it says that it makes a shallow copy of the dictionary. Same goes for the book I am following (Beazley's Python Reference), which says:
...
What is in your .vimrc? [closed]
...lly stored inside a .vimrc file. Typical features for a programmer would be syntax highlighting, smart indenting and so on.
...
Group by multiple columns in dplyr, using string vector input
I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns.
9 Answ...
javascript: recursive anonymous function?
Let's say I have a basic recursive function:
19 Answers
19
...
Iterate a list as pair (current, next) in Python
...xample from the itertools module docs:
import itertools
def pairwise(iterable):
"s -> (s0,s1), (s1,s2), (s2, s3), ..."
a, b = itertools.tee(iterable)
next(b, None)
return zip(a, b)
For Python 2, you need itertools.izip instead of zip:
import itertools
def pairwise(iterable)...
Elements order in a “for (… in …)” loop
Does the "for…in" loop in Javascript loop through the hashtables/elements in the order they are declared? Is there a browser which doesn't do it in order?
The object I wish to use will be declared once and will never be modified.
...
What is the difference between Ruby 1.8 and Ruby 1.9
I'm not clear on the differences between the "current" version of Ruby (1.8) and the "new" version (1.9). Is there an "easy" or a "simple" explanation of the differences and why it is so different?
...
Maven Modules + Building a Single Specific Module
I have a multi-module Maven project with a parent project P and three sub-modules A , B , and C . Both B and C are war projects and both depend on A .
...
Extracting bits with a single multiplication
...n answer to another question , and would like to understand it a little better.
5 Answers
...
How to get a specific output iterating a hash in Ruby?
I want to get a specific output iterating a Ruby Hash.
6 Answers
6
...