大约有 40,000 项符合查询结果(耗时:0.0516秒) [XML]
Changing user agent on urllib2.urlopen
How can I download a webpage with a user agent other than the default one on urllib2.urlopen?
9 Answers
...
C++ valarray vs. vector
... You wouldn't make a valarray of pointers so the compiler can make assumptions about the code and optimise it better. (The main reason that Fortran is so fast is that there is no pointer type so there can be no pointer aliasing.)
Valarrays also have classes which allow you to slice them up in a rea...
Alter MySQL table to add comments on columns
I have been checking the MySQL Documentation for ALTER TABLE and it does not seem to include a way to add or modify a comment to a column. How can I do this?
...
Remove all unused resources from an android project
... elements within specifics files (e.g. unused string entries) that are no longer used?
15 Answers
...
Difference between binary semaphore and mutex
...tate and use the same API, their usage is very different.
Mutual Exclusion Semaphores
Mutual Exclusion semaphores are used to protect shared resources (data structure, file, etc..).
A Mutex semaphore is "owned" by the task that takes it. If Task B attempts to semGive a mutex currently held by ...
How is the default max Java heap size determined?
If I omit the -Xmxn option from the Java command line then a default value will be used. According to Java documentation
...
Error while installing json gem 'mkmf.rb can't find header files for ruby'
For context, it on a remote server which has a firewall. I'm setting up my environment through a proxy. I have ruby 1.8.7 . When I try to gem install..
...
Firefox Add-on RESTclient - How to input POST parameters?
I've installed Firefox RESTclient add-on but , I'm having hard time figuring out how to pass POST parameters. Is there a specific format to do this? Or is there any other tool which can be used to debug an REST API on Mac OS X ?
...
How to find patterns across multiple lines using grep?
...d files that have "abc" AND "efg" in that order, and those two strings are on different lines in that file. Eg: a file with content:
...
Sound effects in JavaScript / HTML5
...
HTML5 Audio objects
You don't need to bother with <audio> elements. HTML 5 lets you access Audio objects directly:
var snd = new Audio("file.wav"); // buffers automatically when created
snd.play();
There's no support for mixing in current ve...
