public:
 static cli::array <System::Byte> ^ Convert(System::Text::Encoding ^ srcEncoding, System::Text::Encoding ^ dstEncoding, cli::array <System::Byte> ^ bytes, int index, int count);

public static byte[] Convert (System.Text.Encoding srcEncoding, System.Text.Encoding dstEncoding, byte[] bytes, int index, int count);

static member Convert : System.Text.Encoding * System.Text.Encoding * byte[] * int * int -> byte[]

Public Shared Function Convert (srcEncoding As Encoding, dstEncoding As Encoding, bytes As Byte(), index As Integer, count As Integer) As Byte()

public:
 static cli::array <System::Byte> ^ Convert(System::Text::Encoding ^ srcEncoding, System::Text::Encoding ^ dstEncoding, cli::array <System::Byte> ^ bytes);

public static byte[] Convert (System.Text.Encoding srcEncoding, System.Text.Encoding dstEncoding, byte[] bytes);

static member Convert : System.Text.Encoding * System.Text.Encoding * byte[] -> byte[]

Public Shared Function Convert (srcEncoding As Encoding, dstEncoding As Encoding, bytes As Byte()) As Byte()

以下示例将 Unicode 编码的字符串转换为 ASCII 编码的字符串。 由于 ASCII 属性返回的 ASCII 编码对象使用替换回退，Pi 字符不是 ASCII 字符集的一部分，因此 Pi 字符将替换为问号，如示例中的输出所示。

using namespace System;
using namespace System::Text;
int main()
   String^ unicodeString = "This string contains the unicode character Pi (\u03a0)";
   // Create two different encodings.
   Encoding^ ascii = Encoding::ASCII;
   Encoding^ unicode = Encoding::Unicode;
   // Convert the string into a byte array.
   array<Byte>^unicodeBytes = unicode->GetBytes( unicodeString );
   // Perform the conversion from one encoding to the other.
   array<Byte>^asciiBytes = Encoding::Convert( unicode, ascii, unicodeBytes );
   // Convert the new Byte into[] a char and[] then into a string.
   array<Char>^asciiChars = gcnew array<Char>(ascii->GetCharCount( asciiBytes, 0, asciiBytes->Length ));
   ascii->GetChars( asciiBytes, 0, asciiBytes->Length, asciiChars, 0 );
   String^ asciiString = gcnew String( asciiChars );
   // Display the strings created before and after the conversion.
   Console::WriteLine( "Original String*: {0}", unicodeString );
   Console::WriteLine( "Ascii converted String*: {0}", asciiString );
// The example displays the following output:
//    Original string: This string contains the unicode character Pi (Π)
//    Ascii converted string: This string contains the unicode character Pi (?)
using System;
using System.Text;
class Example
   static void Main()
      string unicodeString = "This string contains the unicode character Pi (\u03a0)";
      // Create two different encodings.
      Encoding ascii = Encoding.ASCII;
      Encoding unicode = Encoding.Unicode;
      // Convert the string into a byte array.
      byte[] unicodeBytes = unicode.GetBytes(unicodeString);
      // Perform the conversion from one encoding to the other.
      byte[] asciiBytes = Encoding.Convert(unicode, ascii, unicodeBytes);
      // Convert the new byte[] into a char[] and then into a string.
      char[] asciiChars = new char[ascii.GetCharCount(asciiBytes, 0, asciiBytes.Length)];
      ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0);
      string asciiString = new string(asciiChars);
      // Display the strings created before and after the conversion.
      Console.WriteLine("Original string: {0}", unicodeString);
      Console.WriteLine("Ascii converted string: {0}", asciiString);
// The example displays the following output:
//    Original string: This string contains the unicode character Pi (Π)
//    Ascii converted string: This string contains the unicode character Pi (?)
Imports System.Text
Class Example
   Shared Sub Main()
      Dim unicodeString As String = "This string contains the unicode character Pi (" & ChrW(&H03A0) & ")"
      ' Create two different encodings.
      Dim ascii As Encoding = Encoding.ASCII
      Dim unicode As Encoding = Encoding.Unicode
      ' Convert the string into a byte array.
      Dim unicodeBytes As Byte() = unicode.GetBytes(unicodeString)
      ' Perform the conversion from one encoding to the other.
      Dim asciiBytes As Byte() = Encoding.Convert(unicode, ascii, unicodeBytes)
      ' Convert the new byte array into a char array and then into a string.
      Dim asciiChars(ascii.GetCharCount(asciiBytes, 0, asciiBytes.Length)-1) As Char
      ascii.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0)
      Dim asciiString As New String(asciiChars)
      ' Display the strings created before and after the conversion.
      Console.WriteLine("Original string: {0}", unicodeString)
      Console.WriteLine("Ascii converted string: {0}", asciiString)
   End Sub
End Class
' The example displays the following output:
'    Original string: This string contains the unicode character Pi (Π)
'    Ascii converted string: This string contains the unicode character Pi (?)