大约有 47,000 项符合查询结果（耗时：0.1527秒） [XML]
The “backspace” escape character '\b': unexpected behavior?
So I'm finally reading through K&R , and I learned something within the first few pages, that there is a backspace escape character, \b .
...
What are sessions? How do they work?
...lication development, using python. I am coming across the terms 'cookies' and 'sessions'. I understand cookies in that they store some info in a key value pair on the browser. But I have a little confusion regarding sessions, in a session too we store data in a cookie on the user's browser.
...
How can I verify if one list is a subset of another?
...answer to your question, however.
A list may contain items multiple times and has a specific order. A set does not. Additionally, sets only work on hashable objects.
Are you asking about subset or subsequence (which means you'll want a string search algorithm)? Will either of the lists be the sam...
Delete all data in SQL Server database
...e all records from all tables of my database? Can I do it with one SQL command or I need for one SQL command per one table?
...
Algorithm to find Largest prime factor of a number
...factorisation. It makes use of the identity N = (a + b)(a - b) = a^2 - b^2 and is easy to understand and implement. Unfortunately it's not very fast in general.
The best known method for factoring numbers up to 100 digits long is the Quadratic sieve. As a bonus, part of the algorithm is easily done...
Is there a benefit to defining a class inside another class in Python?
...Essentially, I have two classes that I'm modeling. A DownloadManager class and a DownloadThread class. The obvious OOP concept here is composition. However, composition doesn't necessarily mean nesting, right?
...
Case objects vs Enumerations in Scala
...es. However, I find in general that enumerations are a bit clumsy in Scala and have the feel of an awkward add-on, so I now tend to use case objects. A case object is more flexible than an enum:
sealed trait Currency { def name: String }
case object EUR extends Currency { val name = "EUR" } //etc.
...
Git's famous “ERROR: Permission to .git denied to user”
I have tried googling and read through https://help.github.com/en/articles/connecting-to-github-with-ssh and various, various guides. I am unable to git push -u origin master or git push origin master ( the same command ).
...
How to configure Mac OS X term so that git has color? [closed]
...
William Purcell's answer only enables color for the 'git diff' command. Do this to enable colors for all git commands:
$ git config --global color.ui true
share
|
improve this answer
...
What's the difference between using INDEX vs KEY in MySQL?
I know how to use INDEX as in the following code. And I know how to use foreign key and primary key .
5 Answers
...