大约有 39,000 项符合查询结果（耗时：0.1815秒） [XML]
Install go with brew, and running the gotour
...
185
Installing go 1.4 with homebrew on OSX:
1) Create Directories
mkdir $HOME/Go
mkdir -p $HOME/Go...
What's the difference between a Python “property” and “attribute”?
... |
edited Jan 20 '15 at 22:23
Joshua Taylor
79.1k99 gold badges129129 silver badges287287 bronze badges
...
Why is it wrong to use std::auto_ptr with standard containers?
... community wiki
6 revs, 5 users 80%Kevin
7
...
How to rollback a specific migration?
I have the following migration file db\migrate\20100905201547_create_blocks.rb
14 Answers
...
Colon (:) in Python list index [duplicate]
...f the slice syntax to 'slice out' sub-parts in sequences , [start:end]
[1:5] is equivalent to "from 1 to 5" (5 not included)
[1:] is equivalent to "1 to end"
[len(a):] is equivalent to "from length of a to end"
Watch https://youtu.be/tKTZoB2Vjuk?t=41m40s at around 40:00 he starts explaining that....
How do I update the element at a certain position in an ArrayList? [duplicate]
I have one ArrayList of 10 String s. How do I update the index 5 with another String value?
5 Answers
...
Why do Chrome and IE put “Mozilla 5.0” in the User-Agent they send to the server? [duplicate]
...e Netscape, and called itself Mozilla/1.22 (compatible; MSIE 2.0; Windows 95), and Internet Explorer received frames, and all of Microsoft was happy, but webmasters were confused.
share
|
improve t...
PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...
|
edited Feb 25 '16 at 9:53
answered Apr 14 '11 at 5:50
...
PHP “pretty print” json_encode [duplicate]
...ript that creates a JSON file. Right now I'm just using json_encode (PHP 5.2.x) to encode an array into JSON output. Then I print the returned value to a file and save it. Problem is that the client wants to be able to open these JSON files for readability, so I'd like to add line breaks in and "p...
Use a list of values to select rows from a pandas dataframe [duplicate]
...
You can use isin method:
In [1]: df = pd.DataFrame({'A': [5,6,3,4], 'B': [1,2,3,5]})
In [2]: df
Out[2]:
A B
0 5 1
1 6 2
2 3 3
3 4 5
In [3]: df[df['A'].isin([3, 6])]
Out[3]:
A B
1 6 2
2 3 3
And to get the opposite use ~:
In [4]: df[~df['A'].isin([3, 6])]
Out[...