大约有 26,000 项符合查询结果(耗时:0.0524秒) [XML]
Reshape three column data frame to matrix (“long” to “wide” format) [duplicate]
...
Active
Oldest
Votes
...
What is the difference between include and require in Ruby?
My question is similar to " What is the difference between include and extend in Ruby? ".
11 Answers
...
Using Build Flavors - Structuring source folders and build.gradle correctly
...
Active
Oldest
Votes
...
C++ performance vs. Java/C#
My understanding is that C/C++ produces native code to run on a particular machine architecture. Conversely, languages like Java and C# run on top of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because ...
Why do 64-bit DLLs go to System32 and 32-bit DLLs to SysWoW64 on 64-bit Windows?
I would like to know when do we need to place a file under
5 Answers
5
...
A CORS POST request works from plain JavaScript, but why not with jQuery?
I'm trying to make a Cross Origin post request, and I got it working in plain JavaScript like this:
5 Answers
...
Why does C++11 not support designated initializer lists as C99? [closed]
Consider:
5 Answers
5
...
Why should we typedef a struct so often in C?
I have seen many programs consisting of structures like the one below
15 Answers
15
...
Calling parent class __init__ with multiple inheritance, what's the right way?
Say I have a multiple inheritance scenario:
9 Answers
9
...
How does Go compile so quickly?
I've Googled and poked around the Go website, but I can't seem to find an explanation for Go's extraordinary build times. Are they products of the language features (or lack thereof), a highly optimized compiler, or something else? I'm not trying to promote Go; I'm just curious.
...
