大约有 8,130 项符合查询结果（耗时：0.0226秒） [XML]
Regular expression that matches valid IPv6 addresses
I'm having trouble writing a regular expression that matches valid IPv6 addresses, including those in their compressed form (with :: or leading zeros omitted from each byte pair).
...
What are some uses of decltype(auto)?
In c++14 the decltype(auto) idiom is introduced.
2 Answers
2
...
How to get function parameter names/values dynamically?
Is there a way to get the function parameter names of a function dynamically?
31 Answers
...
How to change the default charset of a MySQL table?
There is a MySQL table which has this definition taken from SQLYog Enterprise :
5 Answers
...
Significant new inventions in computing since 1980
This question arose from comments about different kinds of progress in computing over the last 50 years or so.
129 Answer...
Covariance and contravariance real world example
...
Let's say you have a class Person and a class that derives from it, Teacher. You have some operations that take an IEnumerable<Person> as the argument. In your School class you have a method that returns an IEnumerable<Teacher>. Covarian...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
I'm working on a balloon project with a Raspberry Pi. When we potentially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
...
How do I measure time elapsed in Java? [duplicate]
...
Unfortunately, none of the ten answers posted so far are quite right.
If you are measuring elapsed time, and you want it to be correct, you must use System.nanoTime(). You cannot use System.currentTimeMillis(), unless you don't mind your result being wrong.
The...
Who is “us” and who is “them” according to Git?
...s, you can find some files marked as deleted by us in the git status report. Who is us according to Git and why?
2 An...
How can I handle time zones in my webapp?
...
The issue of storing timestamps is simple: Store them in UTC.
As for displaying them, it would make sense to take the device's timezone setting and use that as the current timezone. That said, there should be a timezone dropdown next to the "time input"...