大约有 16,000 项符合查询结果(耗时:0.0399秒) [XML]

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What is the point of a private pure virtual function?

...e); would call void SetState( int var, int val ) from the derived class, converting true to int. If the interface is not virtual and the virtual implementation is non-public, like in your exmaple, the author of the derived class has one less problem to think about and can simply write class MyTu...
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Returning the product of a list

...her start with a float type list by doing np.prod(np.arange(5.0,101.0)) or convert it to float by doing np.prod(np.array(range(5,101)).astype(np.float64)). Note that NumPy uses np.float64 instead of float. I don't know the difference. – Wood Jun 4 '19 at 6:45 ...
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Frequency table for a single variable

... Is there an easy way to convert these counts to proportions? – dsaxton Jul 31 '15 at 23:53 7 ...
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SQL Server SELECT into existing table

...(SELECT DISTINCT SUBSTRING( ( SELECT ', table1.' + SYSCOL1.name AS [text()] FROM sys.columns SYSCOL1 WHERE SYSCOL1.object_id = SYSCOL2.object_id and SYSCOL1.is_identity <> 1 ORDER BY SYSCOL1.object_id FOR XML PATH ('') ...
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Getting a slice of keys from a map

... Is there a way to convert this to []string? – Doron Behar May 29 '19 at 15:13 add a comment  |  ...
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How do I clone a generic list in C#?

... I think List.ConvertAll might do this in faster time, since it can pre-allocate the entire array for the list, versus having to resize all the time. – MichaelGG Oct 21 '08 at 17:43 ...
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How to initialize a List to a given size (as opposed to capacity)?

... Create an array with the number of items you want first and then convert the array in to a List. int[] fakeArray = new int[10]; List<int> list = fakeArray.ToList(); share | improv...
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?

... use [NSNumber numberWithInt:] etc.... and in the receiving method you can convert the number into your format as [number int] or [number double]. share | improve this answer | ...
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What are the risks of running 'sudo pip'?

...ted malware would overwrite other, more trusted code, such as code used by system utilities routinely run as root. – user395760 Jan 11 '14 at 0:00 2 ...
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Way to get number of digits in an int?

...I didn't realise all these if else statements would be SO much faster than converting the int to String then calling .length. +1 – Ogen Aug 30 '14 at 4:01 15 ...