Buffer.ByteLength(Array) Metode

Definisi

Ruang nama:

System

Rakitan:

netstandard.dll, System.Runtime.dll

Sumber:

Buffer.cs

Mengembalikan jumlah byte dalam array yang ditentukan.

public:
 static int ByteLength(Array ^ array);

public static int ByteLength(Array array);

static member ByteLength : Array -> int

Public Shared Function ByteLength (array As Array) As Integer

Parameter

array

Array

Array.

Mengembalikan

Int32

Jumlah byte dalam array.

Pengecualian

ArgumentNullException

array adalah null.

ArgumentException

array bukan primitif.

OverflowException

array lebih besar dari 2 gigabyte (GB).

Contoh

Contoh kode berikut mengilustrasikan penggunaan ByteLength metode untuk mengembalikan jumlah byte dalam array.

// Example of the Buffer.ByteLength method.
using System;

class ByteLengthDemo
{
    const string formatter = "{0,10}{1,20}{2,9}{3,12}";

    public static void ArrayInfo( Array arr, string name )
    {
        int byteLength = Buffer.ByteLength( arr );

        // Display the array name, type, Length, and ByteLength.
        Console.WriteLine( formatter, name, arr.GetType( ),
            arr.Length, byteLength );
    }

    public static void Main( )
    {
        byte[ ]   bytes   = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 };
        bool[ ]   bools   = { true, false, true, false, true };
        char[ ]   chars   = { ' ', '$', '\"', 'A', '{' };
        short[ ]  shorts  = { 258, 259, 260, 261, 262, 263 };
        float[ ]  singles = { 1, 678, 2.37E33F, .00415F, 8.9F };
        double[ ] doubles = { 2E-22, .003, 4.4E44, 555E55 };
        long[ ]   longs   = { 1, 10, 100, 1000, 10000, 100000 };

        Console.WriteLine(
            "This example of the Buffer.ByteLength( Array ) " +
            "\nmethod generates the following output.\n" );
        Console.WriteLine( formatter, "Array name", "Array type",
            "Length", "ByteLength" );
        Console.WriteLine( formatter, "----------", "----------",
            "------", "----------" );

        // Display the Length and ByteLength for each array.
        ArrayInfo( bytes, "bytes" );
        ArrayInfo( bools, "bools" );
        ArrayInfo( chars, "chars" );
        ArrayInfo( shorts, "shorts" );
        ArrayInfo( singles, "singles" );
        ArrayInfo( doubles, "doubles" );
        ArrayInfo( longs, "longs" );
    }
}

/*
This example of the Buffer.ByteLength( Array )
method generates the following output.

Array name          Array type   Length  ByteLength
----------          ----------   ------  ----------
     bytes       System.Byte[]       10          10
     bools    System.Boolean[]        5           5
     chars       System.Char[]        5          10
    shorts      System.Int16[]        6          12
   singles     System.Single[]        5          20
   doubles     System.Double[]        4          32
     longs      System.Int64[]        6          48
*/

open System

let print obj1 obj2 obj3 obj4 = 
    printfn $"{obj1,10}{obj2,20}{obj3,9}{obj4,12}"

let arrayInfo (arr: Array) name =
    let byteLength = Buffer.ByteLength arr

    // Display the array name, type, Length, and ByteLength.
    print name (arr.GetType()) arr.Length byteLength

let bytes = [| 1uy; 2uy; 3uy; 4uy; 5uy; 6uy; 7uy; 8uy; 9uy; 0uy |]
let bools = [| true; false; true; false; true |]
let chars = [| ' '; '$'; '\"'; 'A'; '{' |]
let shorts = [| 258s; 259s; 260s; 261s; 262s; 263s |]
let singles = [| 1f; 678f; 2.37E33f; 0.00415f; 8.9f |]
let doubles = [| 2E-22; 0.003; 4.4E44; 555E55 |]
let longs = [| 1L; 10L; 100L; 1000L; 10000L; 100000L |]

printfn "This example of the Buffer.ByteLength(Array) \nmethod generates the following output.\n"
print "Array name" "Array type" "Length" "ByteLength"
print "----------" "----------" "------" "----------"

// Display the Length and ByteLength for each array.
arrayInfo bytes "bytes" 
arrayInfo bools "bools" 
arrayInfo chars "chars" 
arrayInfo shorts "shorts" 
arrayInfo singles "singles" 
arrayInfo doubles "doubles" 
arrayInfo longs "longs" 


// This example of the Buffer.ByteLength(Array)
// method generates the following output.
//
// Array name          Array type   Length  ByteLength
// ----------          ----------   ------  ----------
//      bytes       System.Byte[]       10          10
//      bools    System.Boolean[]        5           5
//      chars       System.Char[]        5          10
//     shorts      System.Int16[]        6          12
//    singles     System.Single[]        5          20
//    doubles     System.Double[]        4          32
//      longs      System.Int64[]        6          48

' Example of the Buffer.ByteLength method.
Module ByteLengthDemo

    Const formatter As String = "{0,10}{1,20}{2,9}{3,12}"

    Sub ArrayInfo( arr As Array, name As String )

        Dim byteLength As Integer = Buffer.ByteLength( arr )

        ' Display the array name, type, Length, and ByteLength.
        Console.WriteLine( formatter, name, arr.GetType, arr.Length, _
            byteLength )
    End Sub

    Sub Main( )
        Dim bytes( )   As Byte    = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 }
        Dim bools( )   As Boolean = { True, False, True, False, True }
        Dim chars( )   As Char    = { " "c, "$"c, """"c, "A"c, "{"c }
        Dim shorts( )  As Short   = { 258, 259, 260, 261, 262, 263 }
        Dim singles( ) As Single  = { 1, 678, 2.37E33, .00415, 8.9 }
        Dim doubles( ) As Double  = { 2E-22, .003, 4.4E44, 555E55 }
        Dim longs( )   As Long    = { 1, 10, 100, 1000, 10000, 100000 }

        Console.WriteLine( _
            "This example of the Buffer.ByteLength( Array ) " & _
            vbCrLf & "method generates the following output." & vbCrLf )
        Console.WriteLine( formatter, "Array name", "Array type", _
            "Length", "ByteLength" )
        Console.WriteLine( formatter, "----------", "----------", _
            "------", "----------" )

        ' Display the Length and ByteLength for each array.
        ArrayInfo( bytes, "bytes" )
        ArrayInfo( bools, "bools" )
        ArrayInfo( chars, "chars" )
        ArrayInfo( shorts, "shorts" )
        ArrayInfo( singles, "singles" )
        ArrayInfo( doubles, "doubles" )
        ArrayInfo( longs, "longs" )
    End Sub 
End Module 

' This example of the Buffer.ByteLength( Array )
' method generates the following output.
' 
' Array name          Array type   Length  ByteLength
' ----------          ----------   ------  ----------
'      bytes       System.Byte[]       10          10
'      bools    System.Boolean[]        5           5
'      chars       System.Char[]        5          10
'     shorts      System.Int16[]        6          12
'    singles     System.Single[]        5          20
'    doubles     System.Double[]        4          32
'      longs      System.Int64[]        6          48