Encoding.Convert Metoda

Zdroj:

Encoding.cs

Zdroj:

Encoding.cs

Zdroj:

Encoding.cs

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()

Parametry

Návraty

Pole typu Byte obsahující výsledek převodu rozsahu bajtů v bytes od srcEncoding na dstEncoding.

Výjimky

Zdroj:

Encoding.cs

Zdroj:

Encoding.cs

Zdroj:

Encoding.cs

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()

Parametry

Návraty

Pole typu Byte obsahující výsledky převodu bytes z srcEncoding na dstEncoding.

Výjimky

Příklady

Následující příklad převede řetězec kódovaný kódem Unicode na řetězec kódovaný ASCII. Vzhledem k tomu, že objekt kódování ASCII vrácený vlastností ASCII používá náhradní náhradní znak a znak Pi není součástí znakové sady ASCII, znak Pi je nahrazen otazníkem, jak ukazuje výstup z příkladu.

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 (?)