大约有 41,000 项符合查询结果(耗时:0.0601秒) [XML]

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Enum type constraints in C# [duplicate]

...nts, tests, documents and ships the feature. So far, no one has done that for this one. There's no particularly unusual reason why not; we have lots of other things to do, limited budgets, and this one has never made it past the "wouldn't this be nice?" discussion in the language design team. The C...
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Non-Relational Database Design [closed]

...-relational "nosql" databases - that is, the (mostly new) class of data stores that don't use traditional relational design or SQL (such as Hypertable, CouchDB, SimpleDB, Google App Engine datastore, Voldemort, Cassandra, SQL Data Services, etc.). They're also often referred to as "key/value stores...
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Should have subtitle controller already set Mediaplayer error Android

... A developer recently added subtitle support to VideoView. When the MediaPlayer starts playing a music (or other source), it checks if there is a SubtitleController and shows this message if it's not set. It doesn't seem to care about if the source you want to play...
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Matplotlib - Move X-Axis label downwards, but not X-Axis Ticks

...Using tips from my previous question: Matplotlib - label each bin , I've more or less go the kinks worked out. 2 Answers ...
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Can I store images in MySQL [duplicate]

...e where users upload their images as part of registration. I want it that for each image, there should be a thumb created with PHP (which is not that difficult). I want to save the thumbs (since they are very small) in the database and I use MySQL. (I don't want to save the thumbs as physical files ...
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Django database query: How to get object by id?

... If you want to get an object, using get() is more straightforward: obj = Class.objects.get(pk=this_object_id) share | improve this answer | fol...
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Git commit in terminal opens VIM, but can't get back to terminal

Trying to learn GitHub at the moment and doing this Git essentials tutorial over at nettuts. I'm on the lesson about making commits. ...
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Can “this” ever be null in Java?

...sn't null. The JLS says : When used as a primary expression, the keyword this denotes a value that is a reference to the object for which the instance method was invoked (§15.12), or to the object being constructed. If you invoked a method from an object, then the object exists or you would...
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Run PHP Task Asynchronously

I work on a somewhat large web application, and the backend is mostly in PHP. There are several places in the code where I need to complete some task, but I don't want to make the user wait for the result. For example, when creating a new account, I need to send them a welcome email. But when they h...
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Is there a way to get the source code from an APK file?

The hard drive on my laptop just crashed and I lost all the source code for an app that I have been working on for the past two months. All I have is the APK file that is stored in my email from when I sent it to a friend. ...