大约有 40,000 项符合查询结果(耗时:0.0350秒) [XML]

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Entity Framework Code First - Advantages and disadvantages of Fluent Api vs Data Annotations [closed

...onf.MapKey("MyForeignKeyID")) Fine granular tuning of relationships, especially in all cases where only one side of an association is exposed in the object model: .WithMany(...), WithOptional(...), WithRequiredDependent(...), WithRequiredPrincipal(...) Specification of inheritance mapping between o...
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Is object empty? [duplicate]

...uming that by empty you mean "has no properties of its own". // Speed up calls to hasOwnProperty var hasOwnProperty = Object.prototype.hasOwnProperty; function isEmpty(obj) { // null and undefined are "empty" if (obj == null) return true; // Assume if it has a length property with a ...
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How to generate a random number in C++?

... The most fundamental problem of your test application is that you call srand once and then call rand one time and exit. The whole point of srand function is to initialize the sequence of pseudo-random numbers with a random seed. It means that if you pass the same value to srand in two differ...
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dispatch_after - GCD in Swift?

...patch_block_t?) dispatch_time_t is a UInt64. The dispatch_queue_t is actually type aliased to an NSObject, but you should just use your familiar GCD methods to get queues. The block is a Swift closure. Specifically, dispatch_block_t is defined as () -> Void, which is equivalent to () -> (). ...
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Ruby: How to turn a hash into HTTP parameters?

...uery # => "a=a&b[c]=c&b[d]" The gem is 'addressable' gem install addressable share | improve this answer | follow | ...
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Unique fields that allow nulls in Django

...egrity. Data may be entered via import scripts, from the shell, through an API or any other means. Much better to override the save() method than to make custom cases for every form that might touch the data. – shacker Jul 27 '16 at 18:36 ...
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SPA best practices for authentication and session management

...-considered-harmful/ To summarize: A man-in-the-middle attack can trivially replace your crypto code with <script> function hash_algorithm(password){ lol_nope_send_it_to_me_instead(password); }</script> A man-in-the-middle attack is trivial against a page that serves any resource ove...
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Is there a Google Voice API? [closed]

Is there an API (officially or unofficially) for Google Voice? I would like to have an API to work with voicemails, send/receive SMS messages, initiate calls, etc. ...
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How to continue a task when Fabric receives an error

...e encountering an exception, execution will halt immediately. This is typically the desired behavior, but there are many exceptions to the rule, so Fabric provides env.warn_only, a Boolean setting. It defaults to False, meaning an error condition will result in the program aborting immediately. Howe...
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How to unescape HTML character entities in Java?

Basically I would like to decode a given Html document, and replace all special chars, such as " " -> " " , ">" -> ">" . ...