大约有 42,000 项符合查询结果（耗时：0.0479秒） [XML]
How to check if a char is equal to an empty space?
Here's what I've got:
11 Answers
11
...
Best way to check if a URL is valid
I want to use PHP to check, if string stored in $myoutput variable contains a valid link syntax or is it just a normal text. The function or solution, that I'm looking for, should recognize all links formats including the ones with GET parameters.
...
Why do we use __init__ in Python classes?
I am having trouble understanding the Initialization of classes.
8 Answers
8
...
How to add a separator to a WinForms ContextMenu?
Inside my control, I have:
8 Answers
8
...
Undo a merge by pull request?
Someone accepted a pull request which they shouldn't have. Now we have a bunch of broken code merged in. How do you undo a pull request? I was just going to revert the changes to the commit just before the merge, but I noticed that it merged in a bunch of commits. So now there are all these commits ...
When to use ' (or quote) in Lisp?
After making it through the major parts of an introductory Lisp book, I still couldn't understand what the special operator (quote) (or equivalent ' ) function does, yet this has been all over Lisp code that I've seen.
...
How to get a specific output iterating a hash in Ruby?
I want to get a specific output iterating a Ruby Hash.
6 Answers
6
...
How many files can I put in a directory?
Does it matter how many files I keep in a single directory? If so, how many files in a directory is too many, and what are the impacts of having too many files? (This is on a Linux server.)
...
Unable to Cast from Parent Class to Child Class
I am trying to cast from a parent class to a child class but I get an InvalidCastException. The child class only has one property of type int. Does anyone know what I need to do?
...
Is it safe to delete a NULL pointer?
Is it safe to delete a NULL pointer?
7 Answers
7
...