大约有 43,000 项符合查询结果(耗时:0.0670秒) [XML]

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How to get duplicate items from a list using LINQ? [duplicate]

... .ToList(); The GroupBy groups the elements that are the same together, and the Where filters out those that only appear once, leaving you with only the duplicates. share | improve this answer ...
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C# - Keyword usage virtual+override vs. new

What are differences between declaring a method in a base type " virtual " and then overriding it in a child type using the " override " keyword as opposed to simply using the " new " keyword when declaring the matching method in the child type? ...
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Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the

I have a WCF service that has been working perfectly, and something has changed and I don't know what. 6 Answers ...
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Large, persistent DataFrame in pandas

I am exploring switching to python and pandas as a long-time SAS user. 6 Answers 6 ...
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Android equivalent of NSUserDefaults in iOS

... this is the way to go for storing very simple things, its simple and straight to the point – smith324 Aug 27 '10 at 15:05 ...
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What is the Swift equivalent of isEqualToString in Objective-C?

...tors whereas == is equality operator (by default call isEqual: on NSObject and its subclasses) – Bryan Chen Jun 7 '14 at 11:42 3 ...
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Use 'class' or 'typename' for template parameters? [duplicate]

...ommittee introduced a new keyword typename to resolve syntactic ambiguity, and decided to let it also be used to specify template types to reduce confusion, but for backward compatibility, class kept its overloaded meaning. ...
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What's the best way to iterate an Android Cursor?

...rating over the result of a database query, doing something with each row, and then moving on to the next row. Typical examples are as follows. ...
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How to best display in Terminal a MySQL SELECT returning too many fields?

...type SELECT * FROM sometable\G you are sending the string to the mysql command line client, not Windows, which is why the G is case sensitive – Hurricane Hamilton Mar 24 '14 at 15:31 ...
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How to print a string in fixed width?

... EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking at this should prefer the new format syntax. You can use string formatting like this: >>> print '%5s' % 'aa' aa >>> print '%5s' % 'aaa' aaa >>> print '%5s' % '...