大约有 17,000 项符合查询结果(耗时:0.0446秒) [XML]

https://stackoverflow.com/ques... 

Is Big O(logn) log base e?

... But it's very easy to show that log_2 n is in Θ(log_a n) for any base a, so I'm not sure I see how using base 2 is "more correct". – bcat Oct 15 '09 at 0:34 ...
https://stackoverflow.com/ques... 

How do I change the color of the text in a UIPickerView under iOS 7?

...spaced 35 pts apart for a picker height of 180. Swift 3: func pickerView(_ pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? { let string = "myString" return NSAttributedString(string: string, attributes: [NSForegroundColorAtt...
https://stackoverflow.com/ques... 

Function in JavaScript that can be called only once

... Accordingly to asawyer's response, you only needed to do _.once(foo) or _.once(bar), and the functions themselves don't need to be aware of being ran only once (no need for the noop and no need for the * = noop). – fableal Oct 3 '12 at 17:31 ...
https://stackoverflow.com/ques... 

Databinding an enum property to a ComboBox in WPF

... Busy } At the top of your XAML: xmlns:my="clr-namespace:namespace_to_enumeration_extension_class and then... <ComboBox ItemsSource="{Binding Source={my:Enumeration {x:Type my:Status}}}" DisplayMemberPath="Description" SelectedValue="{Binding CurrentStatus}" Selec...
https://stackoverflow.com/ques... 

Range references instead values

...{ field string } func main() { var array [10]MyType for idx, _ := range array { array[idx].field = "foo" } for _, e := range array { fmt.Println(e.field) fmt.Println("--") } } ...
https://stackoverflow.com/ques... 

Python 3 ImportError: No module named 'ConfigParser'

...s very buggy, it crashes at first execute call. – if __name__ is None Dec 30 '12 at 14:46 15 @Jan...
https://stackoverflow.com/ques... 

What is the most robust way to force a UIView to redraw?

...r setNeedsDisplay]; [layer displayIfNeeded]; } Also implement a draw(_: CALayer, in: CGContext) method that'll call your private/internal drawing method (which works since every UIView is a CALayerDelegate): Swift /// Called by our CALayer when it wants us to draw /// (in compliance wit...
https://stackoverflow.com/ques... 

How to delete all Annotations on a MKMapView

...me with copy and paste and removing [locs release] and changing mapView to _mapView. I was following a great tutorial for MKDirections here devfright.com/mkdirections-tutorial and wanted to remove the pin after getting directions. I added the code below the last line of that method to the 'clear rou...
https://stackoverflow.com/ques... 

C# “internal” access modifier when doing unit testing

...Include="System.Runtime.CompilerServices.InternalsVisibleTo"> <_Parameter1>MyTests</_Parameter1> </AssemblyAttribute> </ItemGroup> Or if you have one test project per project to be tested, you could do something like this in your Directory.Build.props file: &l...
https://stackoverflow.com/ques... 

Is there a way to iterate over a range of integers?

... @ThomasAhle especially considering C++ is officially adding notation for_each(x,y) inspired by the boost template library – don bright Feb 8 '17 at 2:02 5 ...