大约有 10,158 项符合查询结果(耗时:0.0207秒) [XML]
Extract every nth element of a vector
I would like to create a vector in which each element is the i+6th element of another vector.
4 Answers
...
Eclipse plugin for generating a class diagram [closed]
What is a good Eclipse plugin for generating a class diagram (for a project)?
4 Answers
...
CREATE TABLE IF NOT EXISTS equivalent in SQL Server [duplicate]
CREATE TABLE IF NOT EXISTS works on mysql but fails with SQL Server 2008 R2.
What is the equivalent syntax?
1 Answer
...
PHP date yesterday [duplicate]
I was wondering if there was a simple way of getting yesterday's date through this format:
3 Answers
...
How to make certain text not selectable with CSS [duplicate]
The header for my page has some centered text, but I do not want the user to be able to select it. Is there a way to do this with CSS?
...
Unable to install R package in Ubuntu 11.04 [closed]
I'm new to Linux and R.
2 Answers
2
...
Correct use of transactions in SQL Server
I have 2 commands and need both of them executed correctly or none of them executed. So I think I need a transaction, but I don't know how to use it correctly.
...
“while :” vs. “while true” [duplicate]
When you look at how infinite loops should be implemented, you mostly see this approach:
2 Answers
...
How to condense if/else into one line in Python? [duplicate]
Is there a way to compress an if / else statement to one line in Python?
I oftentimes see all sorts of shortcuts and suspect it can apply here too.
...
Regex: ?: notation (Question mark and colon notation) [duplicate]
I have the following Java regex, which I didn't write and I am trying to modify:
2 Answers
...
