大约有 30,000 项符合查询结果(耗时:0.0507秒) [XML]

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Difference between classification and clustering in data mining? [closed]

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How to get the parents of a Python class?

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What are the most-used vim commands/keypresses?

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Initializing a member array in constructor initializer

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How to add a 'or' condition in #ifdef

... 328 #if defined(CONDITION1) || defined(CONDITION2) should work. :) #ifdef is a bit less typing,...
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How is a CRC32 checksum calculated?

Maybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web. ...
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What does extern inline do?

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How to calculate time in hours between two dates in iOS

...d1 = [NSDate date]; NSDate *d2 = [NSDate dateWithTimeIntervalSince1970:1340323201];//2012-06-22 NSDateComponents *components = [c components:NSHourCalendarUnit fromDate:d2 toDate:d1 options:0]; NSInteger diff = components.minute; NSDayCalendarUnit|NSHourCalendarUnit|NSMinuteCalendarUnit Change ne...
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How to check if any flags of a flag combination are set?

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What is the use of ObservableCollection in .net?

...d; // Now add a new item. people.Add(new Person("Fred", "Smith", 32)); // Remove an item. people.RemoveAt(0); Console.ReadLine(); } static void people_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) { // W...