大约有 45,000 项符合查询结果（耗时：0.0661秒） [XML]
What is the intent of the methods getItem and getItemId in the Android class BaseAdapter?
I'm curious about the purpose of the methods getItem and getItemId in the class Adapter in the Android SDK.
6 Answers
...
Should I use a class or dictionary?
...age? What happens if you later want to add some code? Where would your __init__ code go?
Classes are for bundling related data (and usually code).
Dictionaries are for storing key-value relationships, where usually the keys are all of the same type, and all the values are also of one type. Occasio...
What is Prism for WPF?
...ng called Prism a lot recently. Microsoft, who run the project, describe it as
2 Answers
...
How to generate UML diagrams (especially sequence diagrams) from Java code?
...
ObjectAid UML Explorer
Is what I used. It is easily installed from the repository:
Name: ObjectAid UML Explorer
Location: http://www.objectaid.com/update/current
And produces quite nice UML diagrams:
Description from the website:
The ObjectAid UML Ex...
socket.shutdown vs socket.close
I recently saw a bit of code that looked like this (with sock being a socket object of course):
7 Answers
...
How to kill zombie process
...aunched my program in the foreground (a daemon program), and then I killed it with kill -9 , but I get a zombie remaining and I m not able to kill it with kill -9 . How to kill a zombie process?
...
Why does JQuery have dollar signs everywhere?
I am working on a project with quite a lot of JQuery in it. The JQuery has a lot of $ signs everywhere, for example
7 Answ...
How is mime type of an uploaded file determined by browser?
...erver-side, I am checking the mime type of the uploaded file, to make sure it is application/x-zip-compressed or application/zip .
...
How do I remove a substring from the end of a string in Python?
...ny characters in that set from the ends of x.
Instead, you could use endswith and slicing:
url = 'abcdc.com'
if url.endswith('.com'):
url = url[:-4]
Or using regular expressions:
import re
url = 'abcdc.com'
url = re.sub('\.com$', '', url)
...
Why are these constructs using pre and post-increment undefined behavior?
...havior when the code is run.
As far as I know, the standard doesn't explicitly say why the concept of undefined behavior exists. In my mind, it's simply because the language designers wanted there to be some leeway in the semantics, instead of i.e. requiring that all implementations handle integer ...