大约有 40,000 项符合查询结果(耗时:0.0470秒) [XML]

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What is the difference between varchar and varchar2 in Oracle?

...t rationale before, that's useful. Thanks. For the record, it is still totally ridiculous that the main character type in Oracle is "varchar2". Doesn't that strike anybody else as a terrible kludge? Seems like how I would have solved some problem in my first week of learning to program. ...
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JSON serialization of Google App Engine models

... There is a small mistake in the code: Where you have "output[key] = to_dict(model)" it should be: "output[key] = to_dict(value)". Besides that it's perfect. Thanks! – arikfr Nov 7 '09 at 22:02 ...
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How can I time a code segment for testing performance with Pythons timeit?

...r if you want to average the time elapsed by several runs, you have to manually call the function multiple times (As I think you already do in you example code and timeit does automatically when you set its number argument) import time def myfast(): code n = 10000 t0 = time.time() for i in ran...
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How to disable scrolling temporarily?

...e scrolling is that when you scroll while scrollTo is animating, it gets really ugly ;) 35 Answers ...
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How to initialize a two-dimensional array in Python?

...beginning python and I'm trying to use a two-dimensional list, that I initially fill up with the same variable in every place. I came up with this: ...
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Instance variables vs. class variables in Python

...r instance. If there would be more than one instance (which won't happen), all instance should have the same configuration. I wonder which of the following options would be better or more "idiomatic" Python. ...
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How to include route handlers in multiple files in Express?

... Actually, the author (TJ Holowaychuck) gives a better approche: vimeo.com/56166857 – avetisk Mar 23 '13 at 9:36 ...
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How to determine a Python variable's type?

... It is so simple. You do it like this. print(type(variable_name)) share | improve this answer | follow | ...
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NGinx Default public www location?

...with Apache before, so I am aware that the default public web root is typically /var/www/ . 30 Answers ...
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Entity Framework: One Database, Multiple DbContexts. Is this a bad idea? [closed]

...y single context in your application can do that. The trick for this is usually one additional context containing all your entities which is used only for database creation. Your real application contexts containing only subsets of your entities must have database initializer set to null. There are...