ASCIIEncoding.GetString 方法

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

参数

返回

Source:

ASCIIEncoding.cs

Source:

ASCIIEncoding.cs

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

参数

返回

一个 String 包含解码指定字节序列的结果。

例外

示例

以下示例演示如何使用 GetString 该方法将字节数组转换为字节 String数组。

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'

注解

要转换的数据（例如从流中读取的数据）只能在顺序块中使用。 在这种情况下，或者如果数据量太大，因此需要将其划分为较小的块，则应用程序应分别使用DecoderEncoder方法或GetDecoder方法提供GetEncoder的数据量。

ASCIIEncoding 不提供错误检测。 任何大于十六进制0x7F的字节都解码为 Unicode 问号（“？）。

另请参阅

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