BitConverter.ToUInt32 Método

Definición

Espacio de nombres:
System
Ensamblados:
System.Runtime.Extensions.dll, netstandard.dll, mscorlib.dll

Sobrecargas

ToUInt32(ReadOnlySpan<Byte>)

Convierte un intervalo de bytes de solo lectura en un entero de 32 bits sin signo.Converts a read-only byte span into a 32-bit unsigned integer.
ToUInt32(Byte[], Int32)

Devuelve un entero de 32 bits sin signo convertido a partir de cuatro bytes en la posición especificada de una matriz de bytes.Returns a 32-bit unsigned integer converted from four bytes at a specified position in a byte array.

ToUInt32(ReadOnlySpan<Byte>)

Importante

Esta API no es conforme a CLS.

Convierte un intervalo de bytes de solo lectura en un entero de 32 bits sin signo.Converts a read-only byte span into a 32-bit unsigned integer.

public:
 static System::UInt32 ToUInt32(ReadOnlySpan<System::Byte> value);
[System.CLSCompliant(false)]
public static uint ToUInt32 (ReadOnlySpan<byte> value);
static member ToUInt32 : ReadOnlySpan<byte> -> uint32
Public Shared Function ToUInt32 (value As ReadOnlySpan(Of Byte)) As UInteger

Parámetros

value
ReadOnlySpan<Byte>

Intervalo de solo lectura que contiene los bytes que se van a convertir.A read-only span containing the bytes to convert.

Devoluciones

UInt32

Entero de 32 bits sin signo que representa los bytes convertidos.A 32-bit unsigned integer representing the converted bytes.

Atributos
CLSCompliantAttribute

Excepciones

ArgumentOutOfRangeException

La longitud de value es menor que 4.The length of value is less than 4.

ToUInt32(Byte[], Int32)

Importante

Esta API no es conforme a CLS.

Devuelve un entero de 32 bits sin signo convertido a partir de cuatro bytes en la posición especificada de una matriz de bytes.Returns a 32-bit unsigned integer converted from four bytes at a specified position in a byte array.

public:
 static System::UInt32 ToUInt32(cli::array <System::Byte> ^ value, int startIndex);
[System.CLSCompliant(false)]
public static uint ToUInt32 (byte[] value, int startIndex);
static member ToUInt32 : byte[] * int -> uint32
Public Shared Function ToUInt32 (value As Byte(), startIndex As Integer) As UInteger

Parámetros

value
Byte[]

Matriz de bytes.An array of bytes.

startIndex
Int32

Posición inicial de value.The starting position within value.

Devoluciones

UInt32

Entero de 32 bits sin signo formado por cuatro bytes que comienzan en startIndex.A 32-bit unsigned integer formed by four bytes beginning at startIndex.

Atributos
CLSCompliantAttribute

Excepciones

ArgumentException

El parámetro startIndex es mayor o igual que la longitud de value menos 3 y es menor o igual que la longitud de value menos 1.startIndex is greater than or equal to the length of value minus 3, and is less than or equal to the length of value minus 1.

ArgumentNullException

value es null.value is null.

ArgumentOutOfRangeException

startIndex es menor que cero o mayor que la longitud de value menos 1.startIndex is less than zero or greater than the length of value minus 1.

Ejemplos

En el ejemplo de código siguiente se convierten los elementos de las matrices Byte a valores UInt32 con el método ToUInt32.The following code example converts elements of Byte arrays to UInt32 values with the ToUInt32 method.

// Example of the BitConverter::ToUInt32 method.
using namespace System;

// Convert four byte array elements to an unsigned int and display it.
void BAToUInt32( array<unsigned char>^bytes, int index )
{
   unsigned int value = BitConverter::ToUInt32( bytes, index );
   Console::WriteLine( "{0,5}{1,17}{2,15}", index, BitConverter::ToString( bytes, index, 4 ), value );
}

int main()
{
   array<unsigned char>^byteArray = {15,0,0,0,0,16,0,255,3,0,0,202,154,59,255,255,255,255,127};
   Console::WriteLine( "This example of the BitConverter::ToUInt32( unsigned "
   "char[ ], int ) \nmethod generates the following output. It "
   "converts elements of a \nbyte array to unsigned int "
   "values.\n" );
   Console::WriteLine( "initial byte array" );
   Console::WriteLine( "------------------" );
   Console::WriteLine( BitConverter::ToString( byteArray ) );
   Console::WriteLine();
   Console::WriteLine( "{0,5}{1,17}{2,15}", "index", "array elements", "unsigned int" );
   Console::WriteLine( "{0,5}{1,17}{2,15}", "-----", "--------------", "------------" );
   
   // Convert byte array elements to unsigned int values.
   BAToUInt32( byteArray, 1 );
   BAToUInt32( byteArray, 0 );
   BAToUInt32( byteArray, 7 );
   BAToUInt32( byteArray, 3 );
   BAToUInt32( byteArray, 10 );
   BAToUInt32( byteArray, 15 );
   BAToUInt32( byteArray, 14 );
}

/*
This example of the BitConverter::ToUInt32( unsigned char[ ], int )
method generates the following output. It converts elements of a
byte array to unsigned int values.

initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F

index   array elements   unsigned int
-----   --------------   ------------
    1      00-00-00-00              0
    0      0F-00-00-00             15
    7      FF-03-00-00           1023
    3      00-00-10-00        1048576
   10      00-CA-9A-3B     1000000000
   15      FF-FF-FF-7F     2147483647
   14      FF-FF-FF-FF     4294967295
*/

// Example of the BitConverter.ToUInt32 method.
using System;

class BytesToUInt32Demo
{
    const string formatter = "{0,5}{1,17}{2,15}";
 
    // Convert four byte array elements to a uint and display it.
    public static void BAToUInt32( byte[ ] bytes, int index )
    {
        uint value = BitConverter.ToUInt32( bytes, index );

        Console.WriteLine( formatter, index, 
            BitConverter.ToString( bytes, index, 4 ), value );
    }

    public static void Main( )
    {
        byte[ ] byteArray = {
             15,   0,   0,   0,   0,  16,   0, 255,   3,   0, 
              0, 202, 154,  59, 255, 255, 255, 255, 127 };

        Console.WriteLine( 
            "This example of the BitConverter.ToUInt32( byte[ ], " +
            "int ) \nmethod generates the following output. It " +
            "converts elements \nof a byte array to uint values.\n" );
        Console.WriteLine( "initial byte array" );
        Console.WriteLine( "------------------" );
        Console.WriteLine( BitConverter.ToString( byteArray ) );
        Console.WriteLine( );
        Console.WriteLine( formatter, "index", "array elements", 
            "uint" );
        Console.WriteLine( formatter, "-----", "--------------", 
            "----" );
          
        // Convert byte array elements to uint values.
        BAToUInt32( byteArray, 1 );
        BAToUInt32( byteArray, 0 );
        BAToUInt32( byteArray, 7 );
        BAToUInt32( byteArray, 3 );
        BAToUInt32( byteArray, 10 );
        BAToUInt32( byteArray, 15 );
        BAToUInt32( byteArray, 14 );
    }
}

/*
This example of the BitConverter.ToUInt32( byte[ ], int )
method generates the following output. It converts elements
of a byte array to uint values.

initial byte array
------------------
0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F

index   array elements           uint
-----   --------------           ----
    1      00-00-00-00              0
    0      0F-00-00-00             15
    7      FF-03-00-00           1023
    3      00-00-10-00        1048576
   10      00-CA-9A-3B     1000000000
   15      FF-FF-FF-7F     2147483647
   14      FF-FF-FF-FF     4294967295
*/

' Example of the BitConverter.ToUInt32 method.
Module BytesToUInt32Demo

    Const formatter As String = "{0,5}{1,17}{2,15}"
 
    ' Convert four Byte array elements to a UInt32 and display it.
    Sub BAToUInt32( bytes( ) As Byte, index As Integer )

        Dim value As UInt32 = BitConverter.ToUInt32( bytes, index )

        Console.WriteLine( formatter, index, _
            BitConverter.ToString( bytes, index, 4 ), value )
    End Sub 

    Sub Main( )
        Dim byteArray as Byte( ) = { _
             15,   0,   0,   0,   0,  16,   0, 255,   3,   0, _
              0, 202, 154,  59, 255, 255, 255, 255, 127 }

        Console.WriteLine( _
            "This example of the BitConverter.ToUInt32( Byte( ), " & _
            "Integer ) " & vbCrLf & "method generates the " & _
            "following output. It converts elements " & vbCrLf & _
            "of a Byte array to UInt32 values." & vbCrLf )
        Console.WriteLine( "initial Byte array" )
        Console.WriteLine( "------------------" )
        Console.WriteLine( BitConverter.ToString( byteArray ) )
        Console.WriteLine( )
        Console.WriteLine( formatter, "index", "array elements", _
            "UInt32" )
        Console.WriteLine( formatter, "-----", "--------------", _
            "------" )
          
        ' Convert Byte array elements to UInt32 values.
        BAToUInt32( byteArray, 1 )
        BAToUInt32( byteArray, 0 )
        BAToUInt32( byteArray, 7 )
        BAToUInt32( byteArray, 3 )
        BAToUInt32( byteArray, 10 )
        BAToUInt32( byteArray, 15 )
        BAToUInt32( byteArray, 14 )
    End Sub 
End Module

' This example of the BitConverter.ToUInt32( Byte( ), Integer )
' method generates the following output. It converts elements
' of a Byte array to UInt32 values.
' 
' initial Byte array
' ------------------
' 0F-00-00-00-00-10-00-FF-03-00-00-CA-9A-3B-FF-FF-FF-FF-7F
' 
' index   array elements         UInt32
' -----   --------------         ------
'     1      00-00-00-00              0
'     0      0F-00-00-00             15
'     7      FF-03-00-00           1023
'     3      00-00-10-00        1048576
'    10      00-CA-9A-3B     1000000000
'    15      FF-FF-FF-7F     2147483647
'    14      FF-FF-FF-FF     4294967295

Comentarios

El método ToUInt32 convierte los bytes del índice startIndex a startIndex + 3 a un valor UInt32.The ToUInt32 method converts the bytes from index startIndex to startIndex + 3 to a UInt32 value. El orden de los bytes de la matriz debe reflejar el modos endian de la arquitectura del sistema del equipo; para obtener más información, vea la sección Comentarios del tema de la clase BitConverter.The order of bytes in the array must reflect the endianness of the computer system's architecture; for more information, see the Remarks section of the BitConverter class topic.

Consulte también:

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