大约有 40,000 项符合查询结果（耗时：0.1186秒） [XML]
What do parentheses surrounding an object/function/class declaration mean? [duplicate]
... 'grouping operator' as defined in section 11.1.6 of the ECMA spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf.
Taken verbatim from the docs:
11.1.6 The Grouping Operator
The production PrimaryExpression : ( Expression ) is evaluated as follows:
Return the resu...
How do I create a URL shortener?
... long URL into an input field and the service shortens the URL to " http://www.example.org/abcdef ".
30 Answers
...
Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
...e. To update SciPy and NumPy, I used the precompiled installer from http://www.lfd.uci.edu/~gohlke/pythonlibs/, but it would sometimes screw up compatibility. I loved having a fully configured Py2exe and Cython, and it simply worked out of the box.
After a while, I tried installing the free version...
Is there a built-in function to print all the current properties and values of an object?
...-in module sys:
NAME
sys
FILE
(built-in)
MODULE DOCS
http://www.python.org/doc/current/lib/module-sys.html
DESCRIPTION
This module provides access to some objects used or maintained by the
interpreter and to functions that interact strongly with the interpreter.
Dynamic ...
How can I drop all the tables in a PostgreSQL database?
...the option drop owned by current_user.
More details in the manual: http://www.postgresql.org/docs/current/static/sql-drop-owned.html
share
|
improve this answer
|
follow
...
How do I tar a directory of files and folders without including the directory itself?
..., and we can use separators other than / (, in the above example).
https://www.gnu.org/software/tar/manual/html_section/tar_52.html
share
|
improve this answer
|
follow
...
What's the difference between ViewData and ViewBag?
...ested I post the source of this info I posted, here is the source:
http://www.asp.net/whitepapers/mvc3-release-notes#_Toc2_4
MVC 2 controllers support a ViewData
property that enables you to pass data
to a view template using a late-bound
dictionary API. In MVC 3, you can also
use somew...
Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...
Link to the PEP discussing the new bool type in Python 2.3: http://www.python.org/dev/peps/pep-0285/.
When converting a bool to an int, the integer value is always 0 or 1, but when converting an int to a bool, the boolean value is True for all integers except 0.
>>> int(False)
0
&...
Passing base64 encoded strings in URL
... protocol may define its' own limits. You may take a look at this article: WWW FAQs: What is the maximum length of a URL?
share
|
improve this answer
|
follow
...
Get MD5 hash of big files in Python
...esults using the 'jacksum' tool.
jacksum -a md5 <filename>
http://www.jonelo.de/java/jacksum/
share
|
improve this answer
|
follow
|
...