String.Insert(Int32, String) Metoda

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

Parametry

Zwraca

String

Nowy ciąg, który jest odpowiednikiem tego wystąpienia, ale z value wstawionym na pozycji startIndex .A new string that is equivalent to this instance, but with value inserted at position startIndex.

Wyjątki

Przykłady

Poniższy przykład wstawia znak spacji w czwartej pozycji znaku (znak przy indeksie 3) ciągu.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'

Poniższa Aplikacja konsolowa poprosi użytkowników o wprowadzenie jednego lub więcej przymiotników, aby opisać dwa zwierzęta.The following console application prompts the users to enter one or more adjectives to describe two animals. Następnie wywołuje metodę, Insert Aby wstawić tekst wprowadzony przez użytkownika do ciągu.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.

Uwagi

Jeśli startIndex wartość jest równa długości tego wystąpienia, value jest dołączana na końcu tego wystąpienia.If startIndex is equal to the length of this instance, value is appended to the end of this instance.

Na przykład zwracaną wartością "abc".Insert(2, "XYZ") jest "abXYZc".For example, the return value of "abc".Insert(2, "XYZ") is "abXYZc".

Dotyczy

Zobacz też

• Int32
• Concat(Object)
• CopyTo(Int32, Char[], Int32, Int32)
• Insert(Int32, String)
• Join(String, String[])
• Remove(Int32, Int32)
• Replace(Char, Char)
• Split(Char[])
• Substring(Int32)
• Trim(Char[])