大约有 6,800 项符合查询结果(耗时:0.0326秒) [XML]
Why don't Java Generics support primitive types?
... the JVM, which uses different bytecodes for operations on reference types vs primitive types.) However, erased generics in Java provide both behavioral parametricity (generic methods) and data parametricity (raw and wildcard instantiations of generic types.)
...
a homogeneous translation stra...
What are the best use cases for Akka framework [closed]
...actors. For a game or betting server, what's the advantage of using Actors vs multiple app servers behind a load balancer?
– Martin Konicek
Jul 10 '13 at 15:41
...
Fastest way to replace NAs in a large data.table
...n parallel so well address previously posted benchmarks, below its timings vs fastest approach till now, and also scaled up, using 40 cores machine.
library(data.table)
create_dt <- function(nrow=5, ncol=5, propNA = 0.5){
v <- runif(nrow * ncol)
v[sample(seq_len(nrow*ncol), propNA * nrow*...
String output: format or concat in C#?
...
community wiki
8 revs, 6 users 55%Michał Piaskowski
1
...
Difference between malloc and calloc?
... count = get_int32(file);
struct foo *bar = malloc(count * sizeof *bar);
vs.
size_t count = get_int32(file);
struct foo *bar = calloc(count, sizeof *bar);
The former could result in a tiny allocation and subsequent buffer overflows, if count is greater than SIZE_MAX/sizeof *bar. The latter will...
When to use pip requirements file versus install_requires in setup.py?
... page about this topic, I highly recommend you read it:
install_requires vs Requirements files
Summary:
install_requires is there to list the dependencies of the package that absolutely must be installed for the package to work. It is not meant to pin the dependencies to specific versions, but ...
Threading in a PyQt application: Use Qt threads or Python threads?
...dds uncertainty as to where and when control is in the hands of the module vs the interpreter.
QT threads operate with the GIL released. QT threads are able to execute QT library code (and other compiled module code that does not acquire the GIL) concurrently. However, the Python code executed with...
How do I start a program with arguments when debugging?
... if (value.Contains("%"))
{ //Workaround for VS not expanding variables in debug
value = Environment.GetEnvironmentVariable(value.Replace("%", ""));
}
This allows me to use the same syntax in my sample batch files, and in de...
How to handle the modal closing event in Twitter Bootstrap?
...
difference between hide vs hidden ??
– Mahi
Jan 25 '17 at 7:24
3
...
What is the difference between a Docker image and a container?
...een an image and a stopped container?
– Victor Dombrovsky
Aug 4 '17 at 4:25
359
the image is the ...