List<T>.Reverse List<T>.Reverse List<T>.Reverse List<T>.Reverse Method

Definición

Invierte el orden de los elementos en la List<T> o en una parte de ella.Reverses the order of the elements in the List<T> or a portion of it.

Sobrecargas

Reverse() Reverse() Reverse() Reverse()

Invierte el orden de los elementos en la List<T> completa.Reverses the order of the elements in the entire List<T>.

Reverse(Int32, Int32) Reverse(Int32, Int32) Reverse(Int32, Int32) Reverse(Int32, Int32)

Invierte el orden de los elementos en el intervalo especificado.Reverses the order of the elements in the specified range.

Reverse() Reverse() Reverse() Reverse()

Invierte el orden de los elementos en la List<T> completa.Reverses the order of the elements in the entire List<T>.

public:
 void Reverse();
public void Reverse ();
member this.Reverse : unit -> unit
Public Sub Reverse ()

Ejemplos

En el ejemplo siguiente se muestran las dos sobrecargas del Reverse método.The following example demonstrates both overloads of the Reverse method. En el ejemplo se List<T> crea un de cadenas y se agregan seis cadenas.The example creates a List<T> of strings and adds six strings. La Reverse() sobrecarga del método se usa para invertir la lista y, a Reverse(Int32, Int32) continuación, se utiliza la sobrecarga del método para invertir el centro de la lista, empezando por el elemento 1 y englobando cuatro elementos.The Reverse() method overload is used to reverse the list, and then the Reverse(Int32, Int32) method overload is used to reverse the middle of the list, beginning with element 1 and encompassing four elements.

using namespace System;
using namespace System::Collections::Generic;

void main()
{
    List<String^>^ dinosaurs = gcnew List<String^>();

    dinosaurs->Add("Pachycephalosaurus");
    dinosaurs->Add("Parasauralophus");
    dinosaurs->Add("Mamenchisaurus");
    dinosaurs->Add("Amargasaurus");
    dinosaurs->Add("Coelophysis");
    dinosaurs->Add("Oviraptor");

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }

    dinosaurs->Reverse();

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }

    dinosaurs->Reverse(1, 4);

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }
}

/* This code example produces the following output:

Pachycephalosaurus
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Oviraptor

Oviraptor
Coelophysis
Amargasaurus
Mamenchisaurus
Parasauralophus
Pachycephalosaurus

Oviraptor
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Pachycephalosaurus
 */
using System;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        List<string> dinosaurs = new List<string>();

        dinosaurs.Add("Pachycephalosaurus");
        dinosaurs.Add("Parasauralophus");
        dinosaurs.Add("Mamenchisaurus");
        dinosaurs.Add("Amargasaurus");
        dinosaurs.Add("Coelophysis");
        dinosaurs.Add("Oviraptor");

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }

        dinosaurs.Reverse();

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }

        dinosaurs.Reverse(1, 4);

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }
    }
}

/* This code example produces the following output:

Pachycephalosaurus
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Oviraptor

Oviraptor
Coelophysis
Amargasaurus
Mamenchisaurus
Parasauralophus
Pachycephalosaurus

Oviraptor
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Pachycephalosaurus
 */
Imports System.Collections.Generic

Public Class Example

    Public Shared Sub Main()

        Dim dinosaurs As New List(Of String)

        dinosaurs.Add("Pachycephalosaurus")
        dinosaurs.Add("Parasauralophus")
        dinosaurs.Add("Mamenchisaurus")
        dinosaurs.Add("Amargasaurus")
        dinosaurs.Add("Coelophysis")
        dinosaurs.Add("Oviraptor")

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

        dinosaurs.Reverse()

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

        dinosaurs.Reverse(1, 4)

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

    End Sub
End Class

' This code example produces the following output:
'
'Pachycephalosaurus
'Parasauralophus
'Mamenchisaurus
'Amargasaurus
'Coelophysis
'Oviraptor
'
'Oviraptor
'Coelophysis
'Amargasaurus
'Mamenchisaurus
'Parasauralophus
'Pachycephalosaurus
'
'Oviraptor
'Parasauralophus
'Mamenchisaurus
'Amargasaurus
'Coelophysis
'Pachycephalosaurus

Comentarios

Este método usa Array.Reverse para invertir el orden de los elementos.This method uses Array.Reverse to reverse the order of the elements.

Este método es una operación O (n), donde n es Count.This method is an O(n) operation, where n is Count.

Reverse(Int32, Int32) Reverse(Int32, Int32) Reverse(Int32, Int32) Reverse(Int32, Int32)

Invierte el orden de los elementos en el intervalo especificado.Reverses the order of the elements in the specified range.

public:
 void Reverse(int index, int count);
public void Reverse (int index, int count);
member this.Reverse : int * int -> unit
Public Sub Reverse (index As Integer, count As Integer)

Parámetros

index
Int32 Int32 Int32 Int32

Índice inicial de base cero del intervalo que se va a invertir.The zero-based starting index of the range to reverse.

count
Int32 Int32 Int32 Int32

Número de elementos del intervalo que se va a invertir.The number of elements in the range to reverse.

Excepciones

index es menor que 0.index is less than 0.

o bien-or- count es menor que 0.count is less than 0.

index y count no denotan un intervalo válido de elementos en la List<T>.index and count do not denote a valid range of elements in the List<T>.

Ejemplos

En el ejemplo siguiente se muestran las dos sobrecargas del Reverse método.The following example demonstrates both overloads of the Reverse method. En el ejemplo se List<T> crea un de cadenas y se agregan seis cadenas.The example creates a List<T> of strings and adds six strings. La Reverse() sobrecarga del método se usa para invertir la lista y, a Reverse(Int32, Int32) continuación, se utiliza la sobrecarga del método para invertir el centro de la lista, empezando por el elemento 1 y englobando cuatro elementos.The Reverse() method overload is used to reverse the list, and then the Reverse(Int32, Int32) method overload is used to reverse the middle of the list, beginning with element 1 and encompassing four elements.

using namespace System;
using namespace System::Collections::Generic;

void main()
{
    List<String^>^ dinosaurs = gcnew List<String^>();

    dinosaurs->Add("Pachycephalosaurus");
    dinosaurs->Add("Parasauralophus");
    dinosaurs->Add("Mamenchisaurus");
    dinosaurs->Add("Amargasaurus");
    dinosaurs->Add("Coelophysis");
    dinosaurs->Add("Oviraptor");

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }

    dinosaurs->Reverse();

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }

    dinosaurs->Reverse(1, 4);

    Console::WriteLine();
    for each(String^ dinosaur in dinosaurs)
    {
        Console::WriteLine(dinosaur);
    }
}

/* This code example produces the following output:

Pachycephalosaurus
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Oviraptor

Oviraptor
Coelophysis
Amargasaurus
Mamenchisaurus
Parasauralophus
Pachycephalosaurus

Oviraptor
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Pachycephalosaurus
 */
using System;
using System.Collections.Generic;

public class Example
{
    public static void Main()
    {
        List<string> dinosaurs = new List<string>();

        dinosaurs.Add("Pachycephalosaurus");
        dinosaurs.Add("Parasauralophus");
        dinosaurs.Add("Mamenchisaurus");
        dinosaurs.Add("Amargasaurus");
        dinosaurs.Add("Coelophysis");
        dinosaurs.Add("Oviraptor");

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }

        dinosaurs.Reverse();

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }

        dinosaurs.Reverse(1, 4);

        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }
    }
}

/* This code example produces the following output:

Pachycephalosaurus
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Oviraptor

Oviraptor
Coelophysis
Amargasaurus
Mamenchisaurus
Parasauralophus
Pachycephalosaurus

Oviraptor
Parasauralophus
Mamenchisaurus
Amargasaurus
Coelophysis
Pachycephalosaurus
 */
Imports System.Collections.Generic

Public Class Example

    Public Shared Sub Main()

        Dim dinosaurs As New List(Of String)

        dinosaurs.Add("Pachycephalosaurus")
        dinosaurs.Add("Parasauralophus")
        dinosaurs.Add("Mamenchisaurus")
        dinosaurs.Add("Amargasaurus")
        dinosaurs.Add("Coelophysis")
        dinosaurs.Add("Oviraptor")

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

        dinosaurs.Reverse()

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

        dinosaurs.Reverse(1, 4)

        Console.WriteLine()
        For Each dinosaur As String In dinosaurs
            Console.WriteLine(dinosaur)
        Next

    End Sub
End Class

' This code example produces the following output:
'
'Pachycephalosaurus
'Parasauralophus
'Mamenchisaurus
'Amargasaurus
'Coelophysis
'Oviraptor
'
'Oviraptor
'Coelophysis
'Amargasaurus
'Mamenchisaurus
'Parasauralophus
'Pachycephalosaurus
'
'Oviraptor
'Parasauralophus
'Mamenchisaurus
'Amargasaurus
'Coelophysis
'Pachycephalosaurus

Comentarios

Este método usa Array.Reverse para invertir el orden de los elementos.This method uses Array.Reverse to reverse the order of the elements.

Este método es una operación O (n), donde n es Count.This method is an O(n) operation, where n is Count.

Se aplica a