大约有 42,000 项符合查询结果(耗时:0.0540秒) [XML]

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file_put_contents - failed to open stream: Permission denied

...77 database (from the directory that contains the database folder) apache and nobody will have access to this directory if it is chmodd'ed correctly. The other thing to do is echo "getcwd()". This will show you the current directory, and if this isn't '/something.../database/' then you'll need to ...
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What's the best way to share data between activities?

I have one activity which is the main activity used throughout the app and it has a number of variables. I have two other activities which I would like to be able to use the data from the first activity. Now I know I can do something like this: ...
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What's the difference between an object initializer and a constructor?

What are the differences between the two and when would you use an "object initializer" over a "constructor" and vice-versa? I'm working with C#, if that matters. Also, is the object initializer method specific to C# or .NET? ...
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Return a value if no rows are found in Microsoft tSQL

...1) > 0 THEN 1 ELSE 0 END AS [Value] FROM Sites S WHERE S.Id = @SiteId and S.Status = 1 AND (S.WebUserId = @WebUserId OR S.AllowUploads = 1) share | improve this answer | ...
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When to use which design pattern? [closed]

...ve read a lot of websites where design patterns are explained. I do understand the most of them, but I find it difficult to recognize a pattern in my own situations. ...
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Func vs. Action vs. Predicate [duplicate]

With real examples and their use, can someone please help me understand: 3 Answers 3 ...
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How to determine if binary tree is balanced?

... move to do some actual programming now. I'm working on binary trees now, and I was wondering what would be the best way to determine if the tree is height-balanced. ...
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How to read/process command line arguments?

I am originally a C programmer. I have seen numerous tricks and "hacks" to read many different arguments. 17 Answers ...
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Syntax behind sorted(key=lambda: …)

I don't quite understand the syntax behind the sorted() argument: 9 Answers 9 ...
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C# catch a stack overflow exception

...nt* where the host specifically allows for StackOverflow exceptions to be handled The stackoverflow exception is thrown by user code and not due to an actual stack overflow situation (Reference) *"hosted environment" as in "my code hosts CLR and I configure CLR's options" and not "my code runs on ...