大约有 13,071 项符合查询结果（耗时：0.0287秒） [XML]
How does HashSet compare elements for equality?
...
It uses an IEqualityComparer<T> (EqualityComparer<T>.Default unless you specify a different one on construction).
When you add an element to the set, it will find the hash code using IEqualityComparer<T>.GetHa...
What is a sealed trait?
Sealed classes are described in 'Programming in Scala', but sealed traits are not.
Where can I find more information about a sealed trait?
...
CALL command vs. START with /WAIT option
...
For exe files, I suppose the differences are nearly unimportant.
But to start an exe you don't even need CALL.
When starting another batch it's a big difference,
as CALL will start it in the same window and the called batch has access to t...
100% width Twitter Bootstrap 3 template
...have a 100% wide template that I want to code with bootstrap. The first column begins at the left corner and I have a Google map the stretches to the rightmost. I thought I could do this with container-fluid class, but that doesn't seem to be available any longer. I have no idea how to achieve tha...
setuptools vs. distutils: why is distutils still a thing?
Python has a confusing history of tools that can be used to package and describe projects: these include distutils in the Standard Library, distribute , distutils2 , and setuptools (and maybe more). It appears that distribute and distutils2 were discontinued in favor of setuptools , which...
The written versions of the logical operators
This is the only place I've ever seen and , or and not listed as actual operators in C++. When I wrote up a test program in NetBeans, I got the red underlining as if there was a syntax error and figured the website was wrong, but it is NetBeans which is wrong because it compiled and ran as exp...
How do I catch a numpy warning like it's an exception (not just for testing)?
...Python for a project I'm doing. I'm doing a barycentric style one to avoid using an explicit for-loop as opposed to a Newton's divided difference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes it a warning instead of a normal exceptio...
Regex replace uppercase with lowercase letters
I'm trying to replace uppercase letters with corresponding lowercase letters using regex.
So that
6 Answers
...
How does the socket API accept() function work?
The socket API is the de-facto standard for TCP/IP and UDP/IP communications (that is, networking code as we know it). However, one of its core functions, accept() is a bit magical.
...
How to port data-only volumes from one host to another?
As described in the Docker documentation on Working with Volumes there is the concept of so-called data-only containers, which provide a volume that can be mounted into multiple other containers, no matter whether the data-only container is actually running or not.
...