大约有 44,000 项符合查询结果（耗时：0.0633秒） [XML]
What are the differences and similarities between ffmpeg, libav, and avconv?
...the FFmpeg libraries, is unrelated to the Libav project.
How to tell the difference
If you are using avconv then you are using Libav. If you are using ffmpeg you could be using FFmpeg or Libav. Refer to the first line in the console output to tell the difference: the copyright notice will either m...
self referential struct definition?
...
@rimiro, the question was a C one. If you want the answer for a C++ variant, you should ask it as a question.
– paxdiablo
May 10 '18 at 13:12
...
Authentication versus Authorization
What's the difference in context of web applications? I see the abbreviation "auth" a lot. Does it stand for auth -entication or auth -orization? Or is it both?
...
Center a DIV horizontally and vertically [duplicate]
...
After trying a lot of things I find a way that works. I share it here if it is useful to anyone. You can see it here working: http://jsbin.com/iquviq/30/edit
.content {
width: 200px;
height: 600px;
background-color: blue;
position: absolute; /*Can also be `fixed`...
Function to return only alpha-numeric characters from string?
...pt a-z, A-Z and 0-9:
$result = preg_replace("/[^a-zA-Z0-9]+/", "", $s);
If your definition of alphanumeric includes letters in foreign languages and obsolete scripts then you will need to use the Unicode character classes.
Try this to leave only A-Z:
$result = preg_replace("/[^A-Z]+/", "", $s);...
const char* concatenation
... hard coded array size. That's a really bad habit to get into, especially if you don't know what size "one" and "two" are.
– Paul Tomblin
Jan 3 '10 at 15:58
1
...
Iterate through every file in one directory
... do something like this:
Dir.foreach('/path/to/dir') do |filename|
next if filename == '.' or filename == '..'
# Do work on the remaining files & directories
end
Dir::foreach and Dir::entries (as well as Dir::each_child and Dir::children) also include hidden files & directories. Often...
How to delete migration files in Rails 3
...rsion before the one I want to delete.
Delete the migration file manually.
If there are pending migrations (i.e., the migration I removed was not the last one), I just perform a new rake db:migrate again.
If your application is already on production or staging, it's safer to just write another mig...
How to find the Number of CPU Cores via .NET/C#?
...
There are several different pieces of information relating to processors that you could get:
Number of physical processors
Number of cores
Number of logical processors.
These can all be different; in the case of a machine with 2 dual-core ...
What does $(function() {} ); do?
...ed.
However, I don't think that's the problem you're having - can you clarify what you mean by 'Somehow, some functions are cannot be called and I have to call those function inside' ?
Maybe post some code to show what's not working as expected ?
Edit: Re-reading your question, it could be that yo...