大约有 46,000 项符合查询结果（耗时：0.0393秒） [XML]
Read-only and non-computed variable properties in Swift
I'm trying to figure out something with the new Apple Swift language. Let's say I used to do something like the following in Objective-C. I have readonly properties, and they cannot be individually changed. However, using a specific method, the properties are changed in a logical way.
...
How to upload a file in Django? [closed]
...spent over 2 hours to dig up all the pieces to understand how this works. With that knowledge I implemented a project that makes possible to upload files and show them as list. To download source for the project, visit https://github.com/axelpale/minimal-django-file-upload-example or clone it:
>...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
...ent variable, you can use /usr/libexec/java_home -v '1.7*' to give you a suitable value to put into JAVA_HOME in order to make command line tools use Java 7.
export JAVA_HOME="`/usr/libexec/java_home -v '1.7*'`"
But standard double-clickable application bundles don't use JDKs installed under /Lib...
Transposing a NumPy array
I use Python and NumPy and have some problems with "transpose":
16 Answers
16
...
Response.Redirect to new window
I want to do a Response.Redirect("MyPage.aspx") but have it open in a new browser window. I've done this before without using the JavaScript register script method. I just can't remember how?
...
Why are preprocessor macros evil and what are the alternatives?
...ved a really good answer; I think that almost any programmer before even writing the first "Hello World" had encountered a phrase like "macro should never be used", "macro are evil" and so on, my question is: why? With the new C++11 is there a real alternative after so many years?
...
Why rename synthesized properties in iOS with leading underscores? [duplicate]
...project in Xcode 4, the boilerplate code adds an underscore character when it synthesizes the ivars in the implementation file as:
...
Iterating through a JSON object
I am trying to iterate through a JSON object to import data, i.e. title and link. I can't seem to get to the content that is past the : .
...
Why does SSL handshake give 'Could not generate DH keypair' exception?
When I make an SSL connection with some IRC servers (but not others - presumably due to the server's preferred encryption method) I get the following exception:
...
Is it possible to create static classes in PHP (like in C#)?
I want to create a static class in PHP and have it behave like it does in C#, so
6 Answers
...