大约有 26,000 项符合查询结果(耗时:0.0493秒) [XML]
How to pip or easy_install tkinter on Windows
My Idle is throwing errors that and says tkinter can't be imported.
12 Answers
12
...
How do you cast a List of supertypes to a List of subtypes?
For example, lets say you have two classes:
17 Answers
17
...
How good is Java's UUID.randomUUID?
I know that randomized UUIDs have a very, very, very low probability for collision in theory, but I am wondering, in practice, how good Java's randomUUID() is in terms of not having collision? Does anybody have any experience to share?
...
Interface or an Abstract Class: which one to use?
Please explain when I should use a PHP interface and when I should use an abstract class ?
11 Answers
...
How do I trim leading/trailing whitespace in a standard way?
Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution.
...
Group by in LINQ
Let's suppose if we have a class like:
10 Answers
10
...
Function to calculate distance between two coordinates
I'm currently using the function below and it doesn't work properly. According to Google Maps, the distance between these coordinates (from 59.3293371,13.4877472 to 59.3225525,13.4619422 ) are 2.2 kilometres while the function returns 1.6 kilometres. How can I make this function return the ...
All combinations of a list of lists
I'm basically looking for a python version of Combination of List<List<int>>
7 Answers
...
Perform an action in every sub-directory using Bash
I am working on a script that needs to perform an action in every sub-directory of a specific folder.
9 Answers
...
Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib
...
Active
Oldest
Votes
...
