# Decimal.GetBits(Decimal) 方法

## 定義

Decimal 的指定執行個體值轉換為其對等二進位表示。Converts the value of a specified instance of Decimal to its equivalent binary representation.

``````public:
static cli::array <int> ^ GetBits(System::Decimal d);``````
``public static int[] GetBits (decimal d);``
``static member GetBits : decimal -> int[]``
``Public Shared Function GetBits (d As Decimal) As Integer()``

d
Decimal

#### 傳回

Int32[]

32 位元帶正負號的整數陣列，具有包含 `d` 二進位表示的四個項目。A 32-bit signed integer array with four elements that contain the binary representation of `d`.

## 範例

``````using namespace System;

int main()
{
// Define an array of Decimal values.
array<Decimal>^ values = gcnew array<Decimal>  { Decimal::One,
Decimal::Parse("100000000000000"),
Decimal::Parse("10000000000000000000000000000"),
Decimal::Parse("100000000000000.00000000000000"),
Decimal::Parse("1.0000000000000000000000000000"),
Decimal::Parse("123456789"),
Decimal::Parse("0.123456789"),
Decimal::Parse("0.000000000123456789"),
Decimal::Parse("0.000000000000000000123456789"),
Decimal::Parse("4294967295.0"),
Decimal::Parse("18446744073709551615.0"),
Decimal::MaxValue, Decimal::MinValue,
Decimal::Parse("-7.9228162514264337593543950335") };

Console::WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"Argument", "Bits[3]", "Bits[2]", "Bits[1]", "Bits[0]" );
Console::WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"--------", "-------", "-------", "-------", "-------" );

for each (Decimal value in values)
{
array<int>^ bits = Decimal::GetBits(value);
Console::WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
value, bits[3], bits[2], bits[1], bits[0] );
}
}

/*
This example of the Decimal::GetBits( Decimal ) method
generates the following output. It displays the argument
as a Decimal and the result array in hexadecimal.

Argument     Bits[3]   Bits[2]   Bits[1]   Bits[0]
--------     -------   -------   -------   -------
1    00000000  00000000  00000000  00000001
100000000000000    00000000  00000000  00005AF3  107A4000
10000000000000000000000000000    00000000  204FCE5E  3E250261  10000000
100000000000000.00000000000000    000E0000  204FCE5E  3E250261  10000000
1.0000000000000000000000000000    001C0000  204FCE5E  3E250261  10000000
123456789    00000000  00000000  00000000  075BCD15
0.123456789    00090000  00000000  00000000  075BCD15
0.000000000123456789    00120000  00000000  00000000  075BCD15
0.000000000000000000123456789    001B0000  00000000  00000000  075BCD15
4294967295    00000000  00000000  00000000  FFFFFFFF
18446744073709551615    00000000  00000000  FFFFFFFF  FFFFFFFF
79228162514264337593543950335    00000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
-79228162514264337593543950335    80000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
-7.9228162514264337593543950335    801C0000  FFFFFFFF  FFFFFFFF  FFFFFFFF
*/
``````
``````using System;

class Example
{
public static void Main()
{
// Define an array of Decimal values.
Decimal[] values = { 1M, 100000000000000M, 10000000000000000000000000000M,
100000000000000.00000000000000M, 1.0000000000000000000000000000M,
123456789M, 0.123456789M, 0.000000000123456789M,
0.000000000000000000123456789M, 4294967295M,
18446744073709551615M, Decimal.MaxValue,
Decimal.MinValue, -7.9228162514264337593543950335M };

Console.WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"Argument", "Bits[3]", "Bits[2]", "Bits[1]",
"Bits[0]" );
Console.WriteLine( "{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"--------", "-------", "-------", "-------",
"-------" );

// Iterate each element and display its binary representation
foreach (var value in values) {
int[] bits = decimal.GetBits(value);
Console.WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
value, bits[3], bits[2], bits[1], bits[0]);
}
}
}
// The example displays the following output:
//                           Argument     Bits[3]   Bits[2]   Bits[1]   Bits[0]
//                           --------     -------   -------   -------   -------
//                                  1    00000000  00000000  00000000  00000001
//                    100000000000000    00000000  00000000  00005AF3  107A4000
//      10000000000000000000000000000    00000000  204FCE5E  3E250261  10000000
//     100000000000000.00000000000000    000E0000  204FCE5E  3E250261  10000000
//     1.0000000000000000000000000000    001C0000  204FCE5E  3E250261  10000000
//                          123456789    00000000  00000000  00000000  075BCD15
//                        0.123456789    00090000  00000000  00000000  075BCD15
//               0.000000000123456789    00120000  00000000  00000000  075BCD15
//      0.000000000000000000123456789    001B0000  00000000  00000000  075BCD15
//                         4294967295    00000000  00000000  00000000  FFFFFFFF
//               18446744073709551615    00000000  00000000  FFFFFFFF  FFFFFFFF
//      79228162514264337593543950335    00000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
//     -79228162514264337593543950335    80000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
//    -7.9228162514264337593543950335    801C0000  FFFFFFFF  FFFFFFFF  FFFFFFFF
``````
``````Module Example
Public Sub Main()
' Define an array of decimal values.
Dim values() As Decimal = { 1d, 100000000000000d,
10000000000000000000000000000d,
100000000000000.00000000000000d,
1.0000000000000000000000000000d,
123456789d, 0.123456789d,
0.000000000123456789d,
0.000000000000000000123456789d,
4294967295d,
18446744073709551615d,
Decimal.MaxValue, Decimal.MinValue,
-7.9228162514264337593543950335d }

Console.WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"Argument", "Bits[3]", "Bits[2]", "Bits[1]",
"Bits[0]" )
Console.WriteLine( "{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
"--------", "-------", "-------", "-------",
"-------" )

' Iterate each element and display its binary representation
For Each value In values
Dim bits() As Integer = Decimal.GetBits(value)
Console.WriteLine("{0,31}  {1,10:X8}{2,10:X8}{3,10:X8}{4,10:X8}",
value, bits(3), bits(2), bits(1), bits(0))

Next
End Sub
End Module
' The example displays the following output:
'
'                        Argument     Bits(3)   Bits(2)   Bits(1)   Bits(0)
'                        --------     -------   -------   -------   -------
'                               1    00000000  00000000  00000000  00000001
'                 100000000000000    00000000  00000000  00005AF3  107A4000
'   10000000000000000000000000000    00000000  204FCE5E  3E250261  10000000
'  100000000000000.00000000000000    000E0000  204FCE5E  3E250261  10000000
'  1.0000000000000000000000000000    001C0000  204FCE5E  3E250261  10000000
'                       123456789    00000000  00000000  00000000  075BCD15
'                     0.123456789    00090000  00000000  00000000  075BCD15
'            0.000000000123456789    00120000  00000000  00000000  075BCD15
'   0.000000000000000000123456789    001B0000  00000000  00000000  075BCD15
'                      4294967295    00000000  00000000  00000000  FFFFFFFF
'            18446744073709551615    00000000  00000000  FFFFFFFF  FFFFFFFF
'   79228162514264337593543950335    00000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
'  -79228162514264337593543950335    80000000  FFFFFFFF  FFFFFFFF  FFFFFFFF
' -7.9228162514264337593543950335    801C0000  FFFFFFFF  FFFFFFFF  FFFFFFFF
``````

``````using System;

public class Example
{
public static void Main()
{
Decimal[] values = { 1234.96m, -1234.96m };
foreach (var value in values) {
int[] parts = Decimal.GetBits(value);
bool sign = (parts[3] & 0x80000000) != 0;

byte scale = (byte) ((parts[3] >> 16) & 0x7F);
Decimal newValue = new Decimal(parts[0], parts[1], parts[2], sign, scale);
Console.WriteLine("{0} --> {1}", value, newValue);
}
}
}
// The example displays the following output:
//       1234.96 --> 1234.96
//       -1234.96 --> -1234.96
``````
``````Module Example
Public Sub Main()
Dim values() As Decimal = { 1234.96d, -1234.96d }
For Each value In values
Dim parts() = Decimal.GetBits(value)
Dim sign As Boolean = (parts(3) And &h80000000) <> 0
Dim scale As Byte = CByte((parts(3) >> 16) And &H7F)

Dim newValue As New Decimal(parts(0), parts(1), parts(2), sign, scale)
Console.WriteLine("{0} --> {1}", value, newValue)
Next
End Sub
End Module
' The example displays the following output:
'    1234.96 --> 1234.96
'    -1234.96 --> -1234.96
``````

## 備註

Decimal 數位的二進位表示包含1位正負號、96位整數，以及用來分割整數數位並指定其中一個小數部分的縮放因數。The binary representation of a Decimal number consists of a 1-bit sign, a 96-bit integer number, and a scaling factor used to divide the integer number and specify what portion of it is a decimal fraction. 縮放比例是隱含的數位10，從0到28的指數。The scaling factor is implicitly the number 10, raised to an exponent ranging from 0 to 28.

Bit 31 包含正負號：0表示正數，而1表示負值。Bit 31 contains the sign: 0 mean positive, and 1 means negative.