BitConverter.ToUInt64 Método

Referencia

Definición

Espacio de nombres:: System

Ensamblado:: System.Runtime.Extensions.dll

Ensamblado:: System.Runtime.dll

Ensamblado:: mscorlib.dll

Ensamblado:: netstandard.dll

Importante

Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.

Sobrecargas

ToUInt64(Byte[], Int32)	Devuelve un entero de 64 bits sin signo convertido a partir de ocho bytes en la posición especificada de una matriz de bytes.
ToUInt64(ReadOnlySpan<Byte>)	Convierte los bytes en un valor Long sin signo.

ToUInt64(Byte[], Int32)

Importante

Esta API no es conforme a CLS.

Devuelve un entero de 64 bits sin signo convertido a partir de ocho bytes en la posición especificada de una matriz de bytes.

public:
 static System::UInt64 ToUInt64(cli::array <System::Byte> ^ value, int startIndex);

[System.CLSCompliant(false)]
public static ulong ToUInt64 (byte[] value, int startIndex);

[<System.CLSCompliant(false)>]
static member ToUInt64 : byte[] * int -> uint64

Public Shared Function ToUInt64 (value As Byte(), startIndex As Integer) As ULong

Parámetros

value: Byte[]

Matriz de bytes que incluye los ocho bytes que se van a convertir.

startIndex: Int32

Posición inicial de value.

Devoluciones

UInt64

Entero de 64 bits sin signo formado por ocho bytes que comienzan en startIndex.

Atributos: CLSCompliantAttribute

Excepciones

ArgumentException

El parámetro startIndex es mayor o igual que la longitud de value menos 7 y es menor o igual que la longitud de value menos 1.

ArgumentNullException

value es null.

ArgumentOutOfRangeException

startIndex es menor que cero o mayor que la longitud de value menos 1.

Ejemplos

En el ejemplo de código siguiente se convierten elementos de Byte matrices en UInt64 valores con el ToUInt64 método .

// Example of the BitConverter::ToUInt64 method.
using namespace System;

// Convert eight byte array elements to an unsigned __int64 value and 
// display it.
void BAToUInt64( array<unsigned char>^bytes, int index )
{
   unsigned __int64 value = BitConverter::ToUInt64( bytes, index );
   Console::WriteLine( "{0,5}{1,27}{2,24}", index, BitConverter::ToString( bytes, index, 8 ), value );
}


// Display a byte array, using multiple lines if necessary.
void WriteMultiLineByteArray( array<unsigned char>^bytes )
{
   const int rowSize = 20;
   int iter;
   Console::WriteLine( "initial unsigned char array" );
   Console::WriteLine( "---------------------------" );
   for ( iter = 0; iter < bytes->Length - rowSize; iter += rowSize )
   {
      Console::Write( BitConverter::ToString( bytes, iter, rowSize ) );
      Console::WriteLine( "-" );

   }
   Console::WriteLine( BitConverter::ToString( bytes, iter ) );
   Console::WriteLine();
}

int main()
{
   array<unsigned char>^byteArray = {255,255,255,0,0,0,0,0,0,0,0,1,0,0,0,100,167,179,182,224,13,0,202,154,59,0,0,0,0,170,170,170,170,170,170,0,0,232,137,4,35,199,138,255,255,255,255,255,255,255,255,127};
   Console::WriteLine( "This example of the BitConverter::ToUInt64( unsigned "
   "char[ ], int ) \nmethod generates the following output. It "
   "converts elements of a \nbyte array to unsigned __int64 "
   "values.\n" );
   WriteMultiLineByteArray( byteArray );
   Console::WriteLine( "{0,5}{1,27}{2,24}", "index", "array elements", "unsigned __int64" );
   Console::WriteLine( "{0,5}{1,27}{2,24}", "-----", "--------------", "----------------" );
   
   // Convert byte array elements to unsigned __int64 values.
   BAToUInt64( byteArray, 3 );
   BAToUInt64( byteArray, 0 );
   BAToUInt64( byteArray, 21 );
   BAToUInt64( byteArray, 7 );
   BAToUInt64( byteArray, 29 );
   BAToUInt64( byteArray, 13 );
   BAToUInt64( byteArray, 35 );
   BAToUInt64( byteArray, 44 );
   BAToUInt64( byteArray, 43 );
}

/*
This example of the BitConverter::ToUInt64( unsigned char[ ], int )
method generates the following output. It converts elements of a
byte array to unsigned __int64 values.

initial unsigned char array
---------------------------
FF-FF-FF-00-00-00-00-00-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-00-00-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-FF-FF-FF-FF-FF-FF-FF-7F

index             array elements        unsigned __int64
-----             --------------        ----------------
    3    00-00-00-00-00-00-00-00                       0
    0    FF-FF-FF-00-00-00-00-00                16777215
   21    00-CA-9A-3B-00-00-00-00              1000000000
    7    00-00-00-00-01-00-00-00              4294967296
   29    AA-AA-AA-AA-AA-AA-00-00         187649984473770
   13    00-00-64-A7-B3-B6-E0-0D     1000000000000000000
   35    00-00-E8-89-04-23-C7-8A    10000000000000000000
   44    FF-FF-FF-FF-FF-FF-FF-7F     9223372036854775807
   43    FF-FF-FF-FF-FF-FF-FF-FF    18446744073709551615
*/

// Example of the BitConverter.ToUInt64 method.
using System;

class BytesToUInt64Demo
{
    const string formatter = "{0,5}{1,27}{2,24}";

    // Convert eight byte array elements to a ulong and display it.
    public static void BAToUInt64( byte[ ] bytes, int index )
    {
        ulong value = BitConverter.ToUInt64( bytes, index );

        Console.WriteLine( formatter, index,
            BitConverter.ToString( bytes, index, 8 ), value );
    }

    // Display a byte array, using multiple lines if necessary.
    public static void WriteMultiLineByteArray( byte[ ] bytes )
    {
        const int rowSize = 20;
        int iter;

        Console.WriteLine( "initial byte array" );
        Console.WriteLine( "------------------" );

        for( iter = 0; iter < bytes.Length - rowSize; iter += rowSize )
        {
            Console.Write(
                BitConverter.ToString( bytes, iter, rowSize ) );
            Console.WriteLine( "-" );
        }

        Console.WriteLine( BitConverter.ToString( bytes, iter ) );
        Console.WriteLine( );
    }

    public static void Main( )
    {
        byte[ ] byteArray = {
            255, 255, 255,   0,   0,   0,   0,   0,   0,   0,
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224,
             13,   0, 202, 154,  59,   0,   0,   0,   0, 170,
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4,
             35, 199, 138, 255, 255, 255, 255, 255, 255, 255,
            255, 127 };

        Console.WriteLine(
            "This example of the BitConverter.ToUInt64( byte[ ], " +
            "int ) \nmethod generates the following output. It " +
            "converts elements \nof a byte array to ulong values.\n" );

        WriteMultiLineByteArray( byteArray );

        Console.WriteLine( formatter, "index", "array elements",
            "ulong" );
        Console.WriteLine( formatter, "-----", "--------------",
            "------" );

        // Convert byte array elements to ulong values.
        BAToUInt64( byteArray, 3 );
        BAToUInt64( byteArray, 0 );
        BAToUInt64( byteArray, 21 );
        BAToUInt64( byteArray, 7 );
        BAToUInt64( byteArray, 29 );
        BAToUInt64( byteArray, 13 );
        BAToUInt64( byteArray, 35 );
        BAToUInt64( byteArray, 44 );
        BAToUInt64( byteArray, 43 );
    }
}

/*
This example of the BitConverter.ToUInt64( byte[ ], int )
method generates the following output. It converts elements
of a byte array to ulong values.

initial byte array
------------------
FF-FF-FF-00-00-00-00-00-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
0D-00-CA-9A-3B-00-00-00-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
23-C7-8A-FF-FF-FF-FF-FF-FF-FF-FF-7F

index             array elements                   ulong
-----             --------------                  ------
    3    00-00-00-00-00-00-00-00                       0
    0    FF-FF-FF-00-00-00-00-00                16777215
   21    00-CA-9A-3B-00-00-00-00              1000000000
    7    00-00-00-00-01-00-00-00              4294967296
   29    AA-AA-AA-AA-AA-AA-00-00         187649984473770
   13    00-00-64-A7-B3-B6-E0-0D     1000000000000000000
   35    00-00-E8-89-04-23-C7-8A    10000000000000000000
   44    FF-FF-FF-FF-FF-FF-FF-7F     9223372036854775807
   43    FF-FF-FF-FF-FF-FF-FF-FF    18446744073709551615
*/

open System

let print obj1 obj2 obj3 = printfn $"{obj1,5}{obj2,27}{obj3,24}"

// Convert eight byte array elements to a ulong and display it.
let BAToUInt64 bytes index =
    let value = BitConverter.ToUInt64(bytes, index)

    print index (BitConverter.ToString(bytes, index, 8)) value

// Display a byte array, using multiple lines if necessary.
let writeMultiLineByteArray (bytes: byte []) =
    let rowSize = 20

    printfn "initial byte array"
    printfn "------------------"

    let mutable iter = 0
    for i in 0 .. rowSize .. bytes.Length - rowSize - 1 do
        printfn $"{BitConverter.ToString(bytes, i, rowSize)}-"
        iter <- i

    printfn $"{BitConverter.ToString(bytes, iter + rowSize)}\n"

let byteArray =
    [| 255uy; 255uy; 255uy; 0uy; 0uy; 0uy; 0uy; 0uy; 0uy; 0uy
       0uy; 1uy; 0uy; 0uy; 0uy; 100uy; 167uy; 179uy; 182uy; 224uy
       13uy; 0uy; 202uy; 154uy; 59uy; 0uy; 0uy; 0uy; 0uy; 170uy
       170uy; 170uy; 170uy; 170uy; 170uy; 0uy; 0uy; 232uy; 137uy; 4uy
       35uy; 199uy; 138uy; 255uy; 255uy; 255uy; 255uy; 255uy; 255uy; 255uy
       255uy; 127uy |]

printfn "This example of the BitConverter.ToUInt64(byte [], int) \nmethod generates the following output. It converts elements \nof a byte array to ulong values.\n"

writeMultiLineByteArray byteArray 

print "index" "array elements" "ulong"
print "-----" "--------------" "------"

// Convert byte array elements to ulong values.
BAToUInt64 byteArray 3
BAToUInt64 byteArray 0
BAToUInt64 byteArray 21
BAToUInt64 byteArray 7
BAToUInt64 byteArray 29
BAToUInt64 byteArray 13
BAToUInt64 byteArray 35
BAToUInt64 byteArray 44
BAToUInt64 byteArray 43


// This example of the BitConverter.ToUInt64( byte[ ], int )
// method generates the following output. It converts elements
// of a byte array to ulong values.
//
// initial byte array
// ------------------
// FF-FF-FF-00-00-00-00-00-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
// 0D-00-CA-9A-3B-00-00-00-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
// 23-C7-8A-FF-FF-FF-FF-FF-FF-FF-FF-7F
//
// index             array elements                   ulong
// -----             --------------                  ------
//     3    00-00-00-00-00-00-00-00                       0
//     0    FF-FF-FF-00-00-00-00-00                16777215
//    21    00-CA-9A-3B-00-00-00-00              1000000000
//     7    00-00-00-00-01-00-00-00              4294967296
//    29    AA-AA-AA-AA-AA-AA-00-00         187649984473770
//    13    00-00-64-A7-B3-B6-E0-0D     1000000000000000000
//    35    00-00-E8-89-04-23-C7-8A    10000000000000000000
//    44    FF-FF-FF-FF-FF-FF-FF-7F     9223372036854775807
//    43    FF-FF-FF-FF-FF-FF-FF-FF    18446744073709551615

' Example of the BitConverter.ToUInt64 method.
Module BytesToUInt64Demo

    Const formatter As String = "{0,5}{1,27}{2,24}"
 
    ' Convert eight Byte array elements to a UInt64 and display it.
    Sub BAToUInt64( bytes( ) As Byte, index As Integer )

        Dim value As UInt64 = BitConverter.ToUInt64( bytes, index )

        Console.WriteLine( formatter, index, _
            BitConverter.ToString( bytes, index, 8 ), value )
    End Sub 

    ' Display a Byte array, using multiple lines if necessary.
    Sub WriteMultiLineByteArray( bytes( ) As Byte )
       
        Const rowSize As Integer = 20 
        Dim iter As Integer

        Console.WriteLine( "initial Byte array" )
        Console.WriteLine( "------------------" )

        For iter = 0 To bytes.Length - rowSize - 1 Step rowSize
            Console.Write( _
                BitConverter.ToString( bytes, iter, rowSize ) )
            Console.WriteLine( "-" )
        Next iter

        Console.WriteLine( BitConverter.ToString( bytes, iter ) )
        Console.WriteLine( )
    End Sub

    Sub Main( )
        Dim byteArray as Byte( ) = { _
            255, 255, 255,   0,   0,   0,   0,   0,   0,   0, _
              0,   1,   0,   0,   0, 100, 167, 179, 182, 224, _
             13,   0, 202, 154,  59,   0,   0,   0,   0, 170, _
            170, 170, 170, 170, 170,   0,   0, 232, 137,   4, _
             35, 199, 138, 255, 255, 255, 255, 255, 255, 255, _
            255, 127 }

        Console.WriteLine( _
            "This example of the BitConverter.ToUInt64( Byte( ), " & _
            "Integer ) " & vbCrLf & "method generates the " & _
            "following output. It converts elements " & vbCrLf & _
            "of a Byte array to UInt64 values." & vbCrLf )

        WriteMultiLineByteArray( byteArray )

        Console.WriteLine( formatter, "index", "array elements", _
            "UInt64" )
        Console.WriteLine( formatter, "-----", "--------------", _
            "------" )
          
        ' Convert Byte array elements to UInt64 values.
        BAToUInt64( byteArray, 3 )
        BAToUInt64( byteArray, 0 )
        BAToUInt64( byteArray, 21 )
        BAToUInt64( byteArray, 7 )
        BAToUInt64( byteArray, 29 )
        BAToUInt64( byteArray, 13 )
        BAToUInt64( byteArray, 35 )
        BAToUInt64( byteArray, 44 )
        BAToUInt64( byteArray, 43 )
    End Sub 
End Module

' This example of the BitConverter.ToUInt64( Byte( ), Integer )
' method generates the following output. It converts elements
' of a Byte array to UInt64 values.
' 
' initial Byte array
' ------------------
' FF-FF-FF-00-00-00-00-00-00-00-00-01-00-00-00-64-A7-B3-B6-E0-
' 0D-00-CA-9A-3B-00-00-00-00-AA-AA-AA-AA-AA-AA-00-00-E8-89-04-
' 23-C7-8A-FF-FF-FF-FF-FF-FF-FF-FF-7F
' 
' index             array elements                  UInt64
' -----             --------------                  ------
'     3    00-00-00-00-00-00-00-00                       0
'     0    FF-FF-FF-00-00-00-00-00                16777215
'    21    00-CA-9A-3B-00-00-00-00              1000000000
'     7    00-00-00-00-01-00-00-00              4294967296
'    29    AA-AA-AA-AA-AA-AA-00-00         187649984473770
'    13    00-00-64-A7-B3-B6-E0-0D     1000000000000000000
'    35    00-00-E8-89-04-23-C7-8A    10000000000000000000
'    44    FF-FF-FF-FF-FF-FF-FF-7F     9223372036854775807
'    43    FF-FF-FF-FF-FF-FF-FF-FF    18446744073709551615

Comentarios

El ToUInt64 método convierte los bytes del índice startIndex en startIndex + 7 en un UInt64 valor. El orden de bytes de la matriz debe reflejar la endianidad de la arquitectura del sistema informático. Para obtener más información, vea la sección Comentarios del tema de clase BitConverter .

Consulte también

GetBytes(UInt64)

Se aplica a

ToUInt64(ReadOnlySpan<Byte>)

Importante

Esta API no es conforme a CLS.

Convierte los bytes en un valor Long sin signo.

public:
 static System::UInt64 ToUInt64(ReadOnlySpan<System::Byte> value);

[System.CLSCompliant(false)]
public static ulong ToUInt64 (ReadOnlySpan<byte> value);

[<System.CLSCompliant(false)>]
static member ToUInt64 : ReadOnlySpan<byte> -> uint64

Public Shared Function ToUInt64 (value As ReadOnlySpan(Of Byte)) As ULong

Parámetros

value: ReadOnlySpan<Byte>

Intervalo de solo lectura que contiene los bytes que se van a convertir.

Devoluciones

UInt64

Entero de 64 bits sin signo que representa los bytes convertidos.

Atributos: CLSCompliantAttribute

Excepciones

ArgumentOutOfRangeException

La longitud de value es menor que 8.

Se aplica a

Compartir a través de

BitConverter.ToUInt64 Método

Definición

Sobrecargas

ToUInt64(Byte[], Int32)

Parámetros

Devoluciones

Excepciones

Ejemplos

Comentarios

Consulte también

Se aplica a

ToUInt64(ReadOnlySpan<Byte>)

Parámetros

Devoluciones

Excepciones

Se aplica a

Recursos adicionales