ASCIIEncoding.GetString Méthode

public:
 override System::String ^ GetString(cli::array <System::Byte> ^ bytes);

public override string GetString (byte[] bytes);

override this.GetString : byte[] -> string

Public Overrides Function GetString (bytes As Byte()) As String

Paramètres

Retours

Source:

ASCIIEncoding.cs

Source:

ASCIIEncoding.cs

Source:

ASCIIEncoding.cs

public:
 override System::String ^ GetString(cli::array <System::Byte> ^ bytes, int byteIndex, int byteCount);

public override string GetString (byte[] bytes, int byteIndex, int byteCount);

override this.GetString : byte[] * int * int -> string

Public Overrides Function GetString (bytes As Byte(), byteIndex As Integer, byteCount As Integer) As String

Paramètres

Retours

String contenant les résultats du décodage de la séquence d'octets spécifiée.

Exceptions

Exemples

L’exemple suivant montre comment utiliser la GetString méthode pour convertir un tableau d’octets en .String

using namespace System;
using namespace System::Text;

int main()
{
    // Define a string.
    String^ original = "ASCII Encoding Example";
    // Instantiate an ASCII encoding object.
    ASCIIEncoding^ ascii = gcnew ASCIIEncoding;
    
    // Create an ASCII byte array.
    array<Byte>^ bytes = ascii->GetBytes(original); 
    
    // Display encoded bytes.
    Console::Write("Encoded bytes (in hex):  ");
    for each (Byte value in bytes)
       Console::Write("{0:X2} ", value);
    Console::WriteLine();

    // Decode the bytes and display the resulting Unicode string.
    String^ decoded = ascii->GetString(bytes);
    Console::WriteLine("Decoded string: '{0}'", decoded);
}
// The example displays the following output:
//   Encoded bytes (in hex):  41 53 43 49 49 20 45 6E 63 6F 64 69 6E 67 20 45 78 61 6D 70 6C 65
//   Decoded string: 'ASCII Encoding Example'

using System;
using System.Text;

class Example 
{
    public static void Main() 
    {
        // Define a string.
        String original = "ASCII Encoding Example";
        // Instantiate an ASCII encoding object.
        ASCIIEncoding ascii = new ASCIIEncoding();
        
        // Create an ASCII byte array.
        Byte[] bytes = ascii.GetBytes(original); 
        
        // Display encoded bytes.
        Console.Write("Encoded bytes (in hex):  ");
        foreach (var value in bytes)
           Console.Write("{0:X2} ", value);
        Console.WriteLine();

        // Decode the bytes and display the resulting Unicode string.
        String decoded = ascii.GetString(bytes);
        Console.WriteLine("Decoded string: '{0}'", decoded);
    }
}
// The example displays the following output:
//     Encoded bytes (in hex):  41 53 43 49 49 20 45 6E 63 6F 64 69 6E 67 20 45 78 61 6D 70 6C 65
//     Decoded string: 'ASCII Encoding Example'

Imports System.Text

Module Example
   
    Public Sub Main()
        ' Define a string.
        Dim original As String = "ASCII Encoding Example"
        ' Instantiate an ASCII encoding object.
        Dim ascii As New ASCIIEncoding()
        
        ' Create an ASCII byte array.
        Dim bytes() As Byte = ascii.GetBytes(original) 
        
        ' Display encoded bytes.
        Console.Write("Encoded bytes (in hex):  ")
        For Each value In bytes
           Console.Write("{0:X2} ", value)
        Next   
        Console.WriteLine()

        ' Decode the bytes and display the resulting Unicode string.
        Dim decoded As String = ascii.GetString(bytes)
        Console.WriteLine("Decoded string: '{0}'", decoded)
    End Sub
End Module
' The example displays the following output:
'   Encoded bytes (in hex):  41 53 43 49 49 20 45 6E 63 6F 64 69 6E 67 20 45 78 61 6D 70 6C 65
'   Decoded string: 'ASCII Encoding Example'

Remarques

Les données à convertir, telles que les données lues à partir d’un flux, ne peuvent être disponibles que dans des blocs séquentiels. Dans ce cas, ou si la quantité de données est telle qu’elle doit être divisée en blocs plus petits, l’application doit utiliser le Decoder ou Encoder fourni par la GetDecoder méthode ou la GetEncoder méthode, respectivement.

ASCIIEncoding ne fournit pas de détection des erreurs. Tout octet supérieur à 0x7F hexadécimal est décodé en tant que point d’interrogation Unicode (« ? »).

Voir aussi

• GetChars(Byte[], Int32, Int32, Char[], Int32)
• GetDecoder()
• GetCharCount(Byte[], Int32, Int32)
• GetMaxCharCount(Int32)