大约有 41,727 项符合查询结果（耗时：0.0330秒） [XML]
Where is the C auto keyword used?
In my college days I read about the auto keyword and in the course of time I actually forgot what it is. It is defined as:
...
Does functional programming replace GoF design patterns?
Since I started learning F# and OCaml last year, I've read a huge number of articles which insist that design patterns (especially in Java) are workarounds for the missing features in imperative languages. One article I found makes a fairly strong claim :
...
Qt events and signal/slots
In the Qt world, what is the difference of events and signal/slots?
10 Answers
10
...
How do I delete rows in a data frame?
I have a data frame named "mydata" that looks like this this:
8 Answers
8
...
How to check whether an object is a date?
I have an annoying bug in on a webpage:
20 Answers
20
...
When should you branch?
When working with a SCM system, when should you branch?
12 Answers
12
...
Open new Terminal Tab from command line (Mac OS X)
Is it possible to open a new tab in Mac OS X's terminal from the command line in a currently opened tab?
13 Answers
...
Principal component analysis in Python
I'd like to use principal component analysis (PCA) for dimensionality reduction. Does numpy or scipy already have it, or do I have to roll my own using numpy.linalg.eigh ?
...
When to use nested classes and classes nested in modules?
I'm pretty familiar with when to use subclasses and modules, but more recently I've been seeing nested classes like this:
5...
What is the most elegant way to remove a path from the $PATH variable in Bash?
Or more generally, how do I remove an item from a colon-separated list in a Bash environment variable?
33 Answers
...