大约有 18,621 项符合查询结果(耗时:0.0244秒) [XML]

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What is the purpose of the word 'self'?

What is the purpose of the self word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this: ...
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PHP: Storing 'objects' inside the $_SESSION

I just figured out that I can actually store objects in the $_SESSION and I find it quite cool because when I jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved....
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Does Java support default parameter values?

I came across some Java code that had the following structure: 24 Answers 24 ...
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libpthread.so.0: error adding symbols: DSO missing from command line

When I'm compiling openvswitch-1.5.0, I've encountered the following compile error: 14 Answers ...
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Best Practice for Forcing Garbage Collection in C#

...collection but in some cases where you are working with large objects that don't always get collected in the 0 generation but where memory is an issue, is it ok to force the collect? Is there a best practice out there for doing so? ...
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Is Dvorak typing appropriate for programming? [closed]

I'm always looking for ways to be more productive, and I've been reading a lot about typing using a Dvorak keyboard. 12 A...
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How do I pass values to the constructor on my wcf service?

I would like to pass values into the constructor on the class that implements my service. 8 Answers ...
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“Inner exception” (with traceback) in Python?

My background is in C# and I've just recently started programming in Python. When an exception is thrown I typically want to wrap it in another exception that adds more information, while still showing the full stack trace. It's quite easy in C#, but how do I do it in Python? ...
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Default filter in Django admin

How can I change the default filter choice from 'ALL'? I have a field named as status which has three values: activate , pending and rejected . When I use list_filter in Django admin, the filter is by default set to 'All' but I want to set it to pending by default. ...
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Bitwise operation and usage

Consider this code: 16 Answers 16 ...