大约有 47,000 项符合查询结果(耗时:0.0591秒) [XML]
Linux, Why can't I write even though I have group permissions?
I want to create a file in a directory owned by the staff group which I am a member of. Why can I not do this?
6 Answers
...
Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
5 Answers
...
Python __str__ versus __unicode__
Is there a python convention for when you should implement __str__() versus __unicode__() . I've seen classes override __unicode__() more frequently than __str__() but it doesn't appear to be consistent. Are there specific rules when it is better to implement one versus the other? Is it ne...
How to initialize a struct in accordance with C programming language standards
I want to initialize a struct element, split in declaration and initialization. This is what I have:
15 Answers
...
Unresolved external symbol on static class members
...
5 Answers
5
Active
...
How to copy an object in Objective-C
I need to deep copy a custom object that has objects of its own. I've been reading around and am a bit confused as to how to inherit NSCopying and how to use NSCopyObject.
...
WPF Button with Image
I'm trying to attach an image on a button in WPF, however this code fails. Seems strange after similar code would work perfectly in Mozilla XUL.
...
HTML: How to limit file upload to be only images?
With HTML, how do I limit what kind of filetypes can be uploaded?
9 Answers
9
...
Visual Studio 2013 git, only Master branch listed
I'm using Visual Studio 2013's Git support to work on a private GitHub repository. I have permission to commit to it. I want to switch branches, but when I go to the Branches view, the only branch in any of the lists (branch drop-down, published branches, merge tool) is master. Other branches show u...
How can I output UTF-8 from Perl?
I am trying to write a Perl script using the "utf8" pragma, and I'm getting unexpected results. I'm using Mac OS X 10.5 (Leopard), and I'm editing with TextMate. All of my settings for both my editor and operating system are defaulted to writing files in utf-8 format.
...
