String.Insert(Int32, String) String.Insert(Int32, String) String.Insert(Int32, String) String.Insert(Int32, String) Method

Definición

Devuelve una nueva cadena en la que se inserta una cadena especificada en una posición de índice concreta en esta instancia.Returns a new string in which a specified string is inserted at a specified index position in this instance.

public:
 System::String ^ Insert(int startIndex, System::String ^ value);
public string Insert (int startIndex, string value);
member this.Insert : int * string -> string
Public Function Insert (startIndex As Integer, value As String) As String

Parámetros

startIndex
Int32 Int32 Int32 Int32

Índice de posición de base cero de la inserción.The zero-based index position of the insertion.

value
String String String String

Cadena que se va a insertar.The string to insert.

Devoluciones

Nueva cadena que es equivalente a la instancia en cuestión, pero con value insertado en la posición startIndex.A new string that is equivalent to this instance, but with value inserted at position startIndex.

Excepciones

startIndex es negativo o mayor que la longitud de esta instancia.startIndex is negative or greater than the length of this instance.

Ejemplos

En el ejemplo siguiente se inserta un carácter de espacio en la cuarta posición de carácter (el carácter que se encuentra en el índice 3) de una cadena.The following example inserts a space character in the fourth character position (the character at index 3) of a string.

using System;

public class Example
{
   public static void Main()
   {
      String original = "aaabbb";
      Console.WriteLine("The original string: '{0}'", original);
      String modified = original.Insert(3, " ");
      Console.WriteLine("The modified string: '{0}'", modified);
   }
}
// The example displays the following output:
//     The original string: 'aaabbb'
//     The modified string: 'aaa bbb'
Public Module Example
   Public Sub Main()
      Dim original As String = "aaabbb"
      Console.WriteLine("The original string: '{0}'", original)
      Dim modified As String = original.Insert(3, " ")
      Console.WriteLine("The modified string: '{0}'", modified)
   End Sub
End Module
' The example displays the following output:
'     The original string: 'aaabbb'
'     The modified string: 'aaa bbb'

La siguiente aplicación de consola solicita a los usuarios que escriban uno o varios adjetivos para describir dos animales.The following console application prompts the users to enter one or more adjectives to describe two animals. A continuación, llama Insert al método para insertar el texto escrito por el usuario en una cadena.It then calls the Insert method to insert the text entered by the user into a string.

using namespace System;

int main()
{
   String^ animal1 = "fox";
   String^ animal2 = "dog";
   String^ strTarget = String::Format( "The {0} jumps over the {1}.", animal1, animal2 );
   Console::WriteLine( "The original string is:{0}{1}{0}", Environment::NewLine, strTarget );
   Console::Write( "Enter an adjective (or group of adjectives) to describe the {0}: ==> ", animal1 );
   String^ adj1 = Console::ReadLine();
   Console::Write( "Enter an adjective (or group of adjectives) to describe the {0}: ==> ", animal2 );
   String^ adj2 = Console::ReadLine();
   adj1 = String::Concat( adj1->Trim(), " " );
   adj2 = String::Concat( adj2->Trim(), " " );
   strTarget = strTarget->Insert( strTarget->IndexOf( animal1 ), adj1 );
   strTarget = strTarget->Insert( strTarget->IndexOf( animal2 ), adj2 );
   Console::WriteLine( " {0}The final string is: {0} {1}", Environment::NewLine, strTarget );
}
// Output from the example might appear as follows:
//       The original string is:
//       The fox jumps over the dog.
//       
//       Enter an adjective (or group of adjectives) to describe the fox: ==> bold
//       Enter an adjective (or group of adjectives) to describe the dog: ==> lazy
//       
//       The final string is:
//       The bold fox jumps over the lazy dog.
using System;

public class Example {
    public static void Main() 
    {
        string animal1 = "fox";
        string animal2 = "dog";

        string strTarget = String.Format("The {0} jumps over the {1}.", 
                                         animal1, animal2);

        Console.WriteLine("The original string is:{0}{1}{0}", 
                          Environment.NewLine, strTarget);

        Console.Write("Enter an adjective (or group of adjectives) " +
                      "to describe the {0}: ==> ", animal1);
        string adj1 = Console.ReadLine();

        Console.Write("Enter an adjective (or group of adjectives) " + 
                      "to describe the {0}: ==> ", animal2);    
        string adj2 = Console.ReadLine();

        adj1 = adj1.Trim() + " ";
        adj2 = adj2.Trim() + " ";

        strTarget = strTarget.Insert(strTarget.IndexOf(animal1), adj1);
        strTarget = strTarget.Insert(strTarget.IndexOf(animal2), adj2);

        Console.WriteLine("{0}The final string is:{0}{1}", 
                          Environment.NewLine, strTarget);
    }
}
// Output from the example might appear as follows:
//       The original string is:
//       The fox jumps over the dog.
//       
//       Enter an adjective (or group of adjectives) to describe the fox: ==> bold
//       Enter an adjective (or group of adjectives) to describe the dog: ==> lazy
//       
//       The final string is:
//       The bold fox jumps over the lazy dog.
Public Class Example
    Public Shared Sub Main()
        Dim animal1 As String = "fox"
        Dim animal2 As String = "dog"
        Dim strTarget As String = String.Format("The {0} jumps over the {1}.", 
                                                animal1, animal2)
        
        Console.WriteLine("The original string is: {0}{1}{0}", 
                          Environment.NewLine, strTarget)
        
        Console.Write("Enter an adjective (or group of adjectives) " +
                      "to describe the {0}: ==> ", animal1)
        Dim adj1 As String = Console.ReadLine()
        
        Console.Write("Enter an adjective (or group of adjectives) " + 
                      "to describe the {0}: ==> ", animal2)
        Dim adj2 As String = Console.ReadLine()
        
        adj1 = adj1.Trim() + " "
        adj2 = adj2.Trim() + " "
        
        strTarget = strTarget.Insert(strTarget.IndexOf(animal1), adj1)
        strTarget = strTarget.Insert(strTarget.IndexOf(animal2), adj2)
        
        Console.WriteLine("{0}The final string is:{0}{1}", 
                          Environment.NewLine, strTarget)
    End Sub 
End Class 
' Output from the example might appear as follows:
'       The original string is:
'       The fox jumps over the dog.
'       
'       Enter an adjective (or group of adjectives) to describe the fox: ==> bold
'       Enter an adjective (or group of adjectives) to describe the dog: ==> lazy
'       
'       The final string is:
'       The bold fox jumps over the lazy dog.

Comentarios

Si startIndex es igual a la longitud de esta instancia, value se anexa al final de esta instancia.If startIndex is equal to the length of this instance, value is appended to the end of this instance.

Nota

Este método no modifica el valor de la instancia actual.This method does not modify the value of the current instance. En su lugar, devuelve una nueva cadena en la value que se inserta en la instancia actual.Instead, it returns a new string in which value is inserted into the current instance.

Por ejemplo, el valor devuelto "abc".Insert(2, "XYZ") de es "abXYZc".For example, the return value of "abc".Insert(2, "XYZ") is "abXYZc".

Se aplica a

Consulte también: