大约有 46,000 项符合查询结果（耗时：0.0604秒） [XML]
NVIDIA vs AMD: GPGPU performance
I'd like to hear from people with experience of coding for both. Myself, I only have experience with NVIDIA.
10 Answers
...
Do HTML WebSockets maintain an open connection for each client? Does this scale?
I am curious if anyone has any information about the scalability of HTML WebSockets. For everything I've read it appears that every client will maintain an open line of communication with the server. I'm just wondering how that scales and how many open WebSocket connections a server can handle. Mayb...
Variable's scope in a switch case [duplicate]
I think I don't understand how the scope works in a switch case.
7 Answers
7
...
How to use a variable to specify column name in ggplot
...
If for whatever reason you'd rather not use aes_string, you could change it to (the somewhat more cumbersome):
ggplot( rates.by.groups, aes(x=name, y=rate, colour= get(column),
group=get(column) ) )
...
With CSS, use “…” for overflowed block of multi-lines
with
16 Answers
16
...
Rails: FATAL - Peer authentication failed for user (PG::Error)
... on your server then just host: localhost to database.yml, I usually throw it in around where it says pool: 5. Otherwise if it's not localhost definitely tell that app where to find its database.
development:
adapter: postgresql
encoding: unicode
database: kickrstack_development
host: loca...
How to list the files inside a JAR file?
...e == null)
break;
String name = e.getName();
if (name.startsWith("path/to/your/dir/")) {
/* Do something with this entry. */
...
}
}
}
else {
/* Fail... */
}
Note that in Java 7, you can create a FileSystem from the JAR (zip) file, and then use NIO's directory wa...
Is embedding background image data into CSS as Base64 good or bad practice?
...
It's not a good idea when you want your images and style information to be cached separately. Also if you encode a large image or a significant number of images in to your css file it will take the browser longer to download...
What's wrong with foreign keys?
... a foreign key (if I remember correctly). However, to me they seem pretty vital to avoid duplication and subsequent data integrity problems throughout your database.
...
Can an abstract class have a constructor?
...n the parent
abstract class, the constructor used in subclass must explicitly call
the parent constructor.
share
|
improve this answer
|
follow
|
...