大约有 16,000 项符合查询结果（耗时：0.0252秒） [XML]
Haskell offline documentation?
What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)?
9 Answers
...
Is it possible to make abstract classes in Python?
How can I make a class or method abstract in Python?
12 Answers
12
...
Is it possible only to declare a variable without assigning any value in Python?
...do this:
var = None
Python is dynamic, so you don't need to declare things; they exist automatically in the first scope where they're assigned. So, all you need is a regular old assignment statement as above.
This is nice, because you'll never end up with an uninitialized variable. But be care...
How to check if a string contains text from an array of substrings in JavaScript?
Pretty straight forward. In javascript, I need to check if a string contains any substrings held in an array.
21 Answers
...
XAMPP - Port 80 in use by “Unable to open process” with PID 4! 12
I have been trying to figure out how to fix this problem for two days. I'm new to this kind of thing so I would appreciate it if someone could tell me how to fix it.
...
What do 3 dots next to a parameter type mean in Java?
...
It means that zero or more String objects (or a single array of them) may be passed as the argument(s) for that method.
See the "Arbitrary Number of Arguments" section here: http://java.sun.com/docs/books/tutorial/java/javaOO/arguments.html#varargs
In your exa...
Compare two files line by line and generate the difference in another file
...
diff(1) is not the answer, but comm(1) is.
NAME
comm - compare two sorted files line by line
SYNOPSIS
comm [OPTION]... FILE1 FILE2
...
-1 suppress lines unique to FILE1
-2 suppress lines unique to FILE2
...
Best GWT widget library? [closed]
Question for all the GWT gurus out there - which is the best GWT widgets library out there? And why?
27 Answers
...
Best practice: ordering of public/protected/private within the class definition?
I am starting a new project from the ground up and want it to be clean / have good coding standards. In what order do the seasoned developers on here like to lay things out within a class?
...
How do you remove duplicates from a list whilst preserving order?
Is there a built-in that removes duplicates from list in Python, whilst preserving order? I know that I can use a set to remove duplicates, but that destroys the original order. I also know that I can roll my own like this:
...