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System
BitConverter 类

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此页面仅适用于
Microsoft Visual Studio 2005/.NET Framework 2.0

同时提供下列产品的其他版本:
.NET Framework 类库
BitConverter 类

将基础数据类型与字节数组相互转换。

命名空间:System
程序集:mscorlib(在 mscorlib.dll 中)

Visual Basic(声明)
Public NotInheritable Class BitConverter
Visual Basic(用法)
可对静态类的成员直接进行访问,无需类的实例。
C#
public static class BitConverter
C++
public ref class BitConverter abstract sealed
J#
public final class BitConverter
JScript
public final class BitConverter

此类便于操作基本形式的类型。一个字节定义为一个 8 位无符号整数。

下面的代码示例演示多个 BitConverter 类方法的用法。

Visual Basic
' Example of BitConverter class methods.
Imports System
Imports Microsoft.VisualBasic

Module BitConverterDemo

    Sub Main( )

        Const formatter As String = "{0,25}{1,30}"
 
        Dim aDoubl      As Double   = 0.1111111111111111111
        Dim aSingl      As Single   = 0.1111111111111111111
        Dim aLong       As Long     = 1111111111111111111
        Dim anInt       As Integer  = 1111111111
        Dim aShort      As Short    = 11111
        Dim aChar       As Char     = "*"c
        Dim aBool       As Boolean  = True

        Console.WriteLine( _
            "This example of methods of the BitConverter class" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( formatter, "argument", "Byte array" )
        Console.WriteLine( formatter, "--------", "----------" )

        ' Convert values to Byte arrays and display them.
        Console.WriteLine( formatter, aDoubl, _
            BitConverter.ToString( BitConverter.GetBytes( aDoubl ) ) )
        Console.WriteLine( formatter, aSingl, _
            BitConverter.ToString( BitConverter.GetBytes( aSingl ) ) )
        Console.WriteLine( formatter, aLong, _
            BitConverter.ToString( BitConverter.GetBytes( aLong ) ) )
        Console.WriteLine( formatter, anInt, _
            BitConverter.ToString( BitConverter.GetBytes( anInt ) ) )
        Console.WriteLine( formatter, aShort, _
            BitConverter.ToString( BitConverter.GetBytes( aShort ) ) )
        Console.WriteLine( formatter, aChar, _
            BitConverter.ToString( BitConverter.GetBytes( aChar ) ) )
        Console.WriteLine( formatter, aBool, _
            BitConverter.ToString( BitConverter.GetBytes( aBool ) ) )
    End Sub
End Module

' This example of methods of the BitConverter class
' generates the following output.
' 
'                  argument                    Byte array
'                  --------                    ----------
'         0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
'                 0.1111111                   39-8E-E3-3D
'       1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
'                1111111111                   C7-35-3A-42
'                     11111                         67-2B
'                         *                         2A-00
'                      True                            01
C#
// Example of BitConverter class methods.
using System;

class BitConverterDemo
{
    public static void Main( )
    {
        const string formatter = "{0,25}{1,30}";
 
        double  aDoubl  = 0.1111111111111111111;
        float   aSingl  = 0.1111111111111111111F;
        long    aLong   = 1111111111111111111;
        int     anInt   = 1111111111;
        short   aShort  = 11111;
        char    aChar   = '*';
        bool    aBool   = true;

        Console.WriteLine( 
            "This example of methods of the BitConverter class" +
            "\ngenerates the following output.\n" );
        Console.WriteLine( formatter, "argument", "byte array" );
        Console.WriteLine( formatter, "--------", "----------" );

        // Convert values to Byte arrays and display them.
        Console.WriteLine( formatter, aDoubl, 
            BitConverter.ToString( BitConverter.GetBytes( aDoubl ) ) );
        Console.WriteLine( formatter, aSingl, 
            BitConverter.ToString( BitConverter.GetBytes( aSingl ) ) );
        Console.WriteLine( formatter, aLong, 
            BitConverter.ToString( BitConverter.GetBytes( aLong ) ) );
        Console.WriteLine( formatter, anInt, 
            BitConverter.ToString( BitConverter.GetBytes( anInt ) ) );
        Console.WriteLine( formatter, aShort, 
            BitConverter.ToString( BitConverter.GetBytes( aShort ) ) );
        Console.WriteLine( formatter, aChar, 
            BitConverter.ToString( BitConverter.GetBytes( aChar ) ) );
        Console.WriteLine( formatter, aBool, 
            BitConverter.ToString( BitConverter.GetBytes( aBool ) ) );
    }
}

/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
C++
// Example of BitConverter class methods.
using namespace System;
int main()
{
   String^ formatter = "{0,25}{1,30}";
   double aDoubl = 0.1111111111111111111;
   float aSingl = 0.1111111111111111111F;
   __int64 aLong = 1111111111111111111;
   int anInt = 1111111111;
   short aShort = 11111;
   __wchar_t aChar = L'*';
   bool aBool = true;
   Console::WriteLine( "This example of methods of the BitConverter class"
   "\ngenerates the following output.\n" );
   Console::WriteLine( formatter, "argument", "byte array" );
   Console::WriteLine( formatter, "--------", "----------" );
   
   // Convert values to Byte arrays and display them.
   Console::WriteLine( formatter, aDoubl, BitConverter::ToString( BitConverter::GetBytes( aDoubl ) ) );
   Console::WriteLine( formatter, aSingl, BitConverter::ToString( BitConverter::GetBytes( aSingl ) ) );
   Console::WriteLine( formatter, aLong, BitConverter::ToString( BitConverter::GetBytes( aLong ) ) );
   Console::WriteLine( formatter, anInt, BitConverter::ToString( BitConverter::GetBytes( anInt ) ) );
   Console::WriteLine( formatter, aShort, BitConverter::ToString( BitConverter::GetBytes( aShort ) ) );
   Console::WriteLine( formatter, aChar, BitConverter::ToString( BitConverter::GetBytes( aChar ) ) );
   Console::WriteLine( formatter, aBool, BitConverter::ToString( BitConverter::GetBytes( aBool ) ) );
}

/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
J#
// Example of BitConverter class methods.
import System.*;

class BitConverterDemo 
{
    public static void main(String[] args) 
    {
        final System.String formatter = "{0,25}{1,30}";

        double aDoubl = 0.1111111111111111111;
        float aSingl = 0.1111111111111111111F;
        long aLong = 1111111111111111111L;
        int anInt = 1111111111;
        short aShort = 11111;
        char aChar = '*';
        boolean aBool = true;

        Console.WriteLine(("This example of methods of the BitConverter class"
            + "\ngenerates the following output.\n"));
        Console.WriteLine(formatter, "argument", "byte array");
        Console.WriteLine(formatter, "--------", "----------");

        // Convert values to Byte arrays and display them.
        Console.WriteLine(formatter, (System.Double)aDoubl, 
            BitConverter.ToString(BitConverter.GetBytes(aDoubl)));
        Console.WriteLine(formatter, (System.Single)aSingl, 
            BitConverter.ToString(BitConverter.GetBytes(aSingl)));
        Console.WriteLine(formatter, (Int64)aLong, 
            BitConverter.ToString(BitConverter.GetBytes(aLong)));
        Console.WriteLine(formatter, (Int32)anInt, 
            BitConverter.ToString(BitConverter.GetBytes(anInt)));
        Console.WriteLine(formatter, (Int16)aShort, 
            BitConverter.ToString(BitConverter.GetBytes(aShort)));
        Console.WriteLine(formatter, (System.Char)aChar, 
            BitConverter.ToString(BitConverter.GetBytes(aChar)));
        Console.WriteLine(formatter, (System.Boolean)aBool, 
            BitConverter.ToString(BitConverter.GetBytes(aBool)));
    } //main
} //BitConverterDemo
/*
This example of methods of the BitConverter class
generates the following output.

                 argument                    byte array
                 --------                    ----------
        0.111111111111111       1C-C7-71-1C-C7-71-BC-3F
                0.1111111                   39-8E-E3-3D
      1111111111111111111       C7-71-C4-2B-AB-75-6B-0F
               1111111111                   C7-35-3A-42
                    11111                         67-2B
                        *                         2A-00
                     True                            01
*/
System.Object
  System.BitConverter
此类型的任何公共静态(Visual Basic 中的 Shared)成员都是线程安全的,但不保证所有实例成员都是线程安全的。

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表,请参见系统要求

.NET Framework

受以下版本支持:2.0、1.1、1.0

.NET Compact Framework

受以下版本支持:2.0、1.0
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