大约有 41,731 项符合查询结果（耗时：0.0516秒） [XML]
Should __init__() call the parent class's __init__()?
I'm used that in Objective-C I've got this construct:
7 Answers
7
...
How to list all functions in a Python module?
I have a python module installed on my system and I'd like to be able to see what functions/classes/methods are available in it.
...
Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib
When starting up my web site for the first time, I'm getting this error
10 Answers
10
...
Proper way to declare custom exceptions in modern Python?
What's the proper way to declare custom exception classes in modern Python? My primary goal is to follow whatever standard other exception classes have, so that (for instance) any extra string I include in the exception is printed out by whatever tool caught the exception.
...
Resolve absolute path from relative path and/or file name
Is there a way in a Windows batch script to return an absolute path from a value containing a filename and/or relative path?
...
Uppercase or lowercase doctype?
When writing the HTML5 doctype what is the correct method?
7 Answers
7
...
Is there a way of making strings file-path safe in c#?
My program will take arbitrary strings from the internet and use them for file names. Is there a simple way to remove the bad characters from these strings or do I need to write a custom function for this?
...
How can I present a file for download from an MVC controller?
In WebForms, I would normally have code like this to let the browser present a "Download File" popup with an arbitrary file type, like a PDF, and a filename:
...
Convert data.frame columns from factors to characters
I have a data frame. Let's call him bob :
18 Answers
18
...
Is it secure to store passwords as environment variables (rather than as plain text) in config files
I work on a few apps in rails, django (and a little bit of php), and one of the things that I started doing in some of them is storing database and other passwords as environment variables rather than plain text in certain config files (or in settings.py, for django apps).
...