Decimal.Multiply(Decimal, Decimal) 方法

参考

定义

命名空间:: System

程序集:: System.Runtime.dll

程序集:: mscorlib.dll

程序集:: netstandard.dll

Source:: Decimal.cs

Source:: Decimal.cs

Source:: Decimal.cs

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

两个指定的 Decimal 值相乘。

public:
 static System::Decimal Multiply(System::Decimal d1, System::Decimal d2);

public static decimal Multiply (decimal d1, decimal d2);

static member Multiply : decimal * decimal -> decimal

Public Shared Function Multiply (d1 As Decimal, d2 As Decimal) As Decimal

参数

d1: Decimal

被乘数。

d2: Decimal

乘数。

Decimal

d1 与 d2 相乘的结果。

例外

OverflowException

返回值小于 Decimal.MinValue 或大于 Decimal.MaxValue。

示例

下面的代码示例创建几对 Decimal 值，并使用 Multiply 方法计算其产品。

// Example of the Decimal::Multiply, Decimal::Divide, and 
// Decimal::Remainder methods. 
using namespace System;

// Display Decimal parameters and their product, quotient, and 
// remainder.
void ShowDecimalProQuoRem( Decimal Left, Decimal Right )
{
   String^ dataFmt = "{0,-35}{1,31}";
   Console::WriteLine();
   Console::WriteLine( dataFmt, "Decimal Left", Left );
   Console::WriteLine( dataFmt, "Decimal Right", Right );
   Console::WriteLine( dataFmt, "Decimal::Multiply( Left, Right )", Decimal::Multiply( Left, Right ) );
   Console::WriteLine( dataFmt, "Decimal::Divide( Left, Right )", Decimal::Divide( Left, Right ) );
   Console::WriteLine( dataFmt, "Decimal::Remainder( Left, Right )", Decimal::Remainder( Left, Right ) );
}

int main()
{
   Console::WriteLine( "This example of the \n"
   "  Decimal::Multiply( Decimal, Decimal ), \n"
   "  Decimal::Divide( Decimal, Decimal ), and \n"
   "  Decimal::Remainder( Decimal, Decimal ) \n"
   "methods generates the following output. It displays "
   "the product, \nquotient, and remainder of several "
   "pairs of Decimal objects." );
   
   // Create pairs of Decimal objects.
   ShowDecimalProQuoRem( Decimal::Parse( "1000" ), Decimal::Parse( "7" ) );
   ShowDecimalProQuoRem( Decimal::Parse( "-1000" ), Decimal::Parse( "7" ) );
   ShowDecimalProQuoRem( Decimal(1230000000,0,0,false,7), Decimal::Parse( "0.0012300" ) );
   ShowDecimalProQuoRem( Decimal::Parse( "12345678900000000" ), Decimal::Parse( "0.0000000012345678" ) );
   ShowDecimalProQuoRem( Decimal::Parse( "123456789.0123456789" ), Decimal::Parse( "123456789.1123456789" ) );
}

/*
This example of the
  Decimal::Multiply( Decimal, Decimal ),
  Decimal::Divide( Decimal, Decimal ), and
  Decimal::Remainder( Decimal, Decimal )
methods generates the following output. It displays the product,
quotient, and remainder of several pairs of Decimal objects.

Decimal Left                                                  1000
Decimal Right                                                    7
Decimal::Multiply( Left, Right )                              7000
Decimal::Divide( Left, Right )      142.85714285714285714285714286
Decimal::Remainder( Left, Right )                                6

Decimal Left                                                 -1000
Decimal Right                                                    7
Decimal::Multiply( Left, Right )                             -7000
Decimal::Divide( Left, Right )     -142.85714285714285714285714286
Decimal::Remainder( Left, Right )                               -6

Decimal Left                                           123.0000000
Decimal Right                                            0.0012300
Decimal::Multiply( Left, Right )                  0.15129000000000
Decimal::Divide( Left, Right )                              100000
Decimal::Remainder( Left, Right )                                0

Decimal Left                                     12345678900000000
Decimal Right                                   0.0000000012345678
Decimal::Multiply( Left, Right )         15241577.6390794200000000
Decimal::Divide( Left, Right )      10000000729000059778004901.796
Decimal::Remainder( Left, Right )                   0.000000000983

Decimal Left                                  123456789.0123456789
Decimal Right                                 123456789.1123456789
Decimal::Multiply( Left, Right )    15241578765584515.651425087878
Decimal::Divide( Left, Right )      0.9999999991899999933660999449
Decimal::Remainder( Left, Right )             123456789.0123456789
*/

// Example of the decimal.Multiply, decimal.Divide, and
// decimal.Remainder methods.
using System;
using Microsoft.VisualBasic;

class DecimalMulDivRemDemo
{
    const string dataFmt = "{0,-35}{1,31}";

    // Display decimal parameters and their product, quotient, and
    // remainder.
    public static void ShowDecimalProQuoRem( decimal Left, decimal Right )
    {
        Console.WriteLine( );
        Console.WriteLine( dataFmt, "decimal Left", Left );
        Console.WriteLine( dataFmt, "decimal Right", Right );
        Console.WriteLine( dataFmt, "decimal.Multiply( Left, Right )",
            decimal.Multiply( Left, Right ) );
        Console.WriteLine( dataFmt, "decimal.Divide( Left, Right )",
            decimal.Divide( Left, Right ) );
        Console.WriteLine( dataFmt, "decimal.Remainder( Left, Right )",
            decimal.Remainder( Left, Right ) );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the \n" +
            "  decimal.Multiply( decimal, decimal ), \n" +
            "  decimal.Divide( decimal, decimal ), and \n" +
            "  decimal.Remainder( decimal, decimal ) \n" +
            "methods generates the following output. It displays " +
            "the product, \nquotient, and remainder of several " +
            "pairs of decimal objects." );

        // Create pairs of decimal objects.
        ShowDecimalProQuoRem( 1000M, 7M );
        ShowDecimalProQuoRem( -1000M, 7M );
        ShowDecimalProQuoRem(
            new decimal( 1230000000, 0, 0, false, 7 ), 0.0012300M );
        ShowDecimalProQuoRem( 12345678900000000M,
            0.0000000012345678M );
        ShowDecimalProQuoRem( 123456789.0123456789M,
            123456789.1123456789M );
    }
}

/*
This example of the
  decimal.Multiply( decimal, decimal ),
  decimal.Divide( decimal, decimal ), and
  decimal.Remainder( decimal, decimal )
methods generates the following output. It displays the product,
quotient, and remainder of several pairs of decimal objects.

decimal Left                                                  1000
decimal Right                                                    7
decimal.Multiply( Left, Right )                               7000
decimal.Divide( Left, Right )       142.85714285714285714285714286
decimal.Remainder( Left, Right )                                 6

decimal Left                                                 -1000
decimal Right                                                    7
decimal.Multiply( Left, Right )                              -7000
decimal.Divide( Left, Right )      -142.85714285714285714285714286
decimal.Remainder( Left, Right )                                -6

decimal Left                                           123.0000000
decimal Right                                            0.0012300
decimal.Multiply( Left, Right )                   0.15129000000000
decimal.Divide( Left, Right )                               100000
decimal.Remainder( Left, Right )                                 0

decimal Left                                     12345678900000000
decimal Right                                   0.0000000012345678
decimal.Multiply( Left, Right )          15241577.6390794200000000
decimal.Divide( Left, Right )       10000000729000059778004901.796
decimal.Remainder( Left, Right )                    0.000000000983

decimal Left                                  123456789.0123456789
decimal Right                                 123456789.1123456789
decimal.Multiply( Left, Right )     15241578765584515.651425087878
decimal.Divide( Left, Right )       0.9999999991899999933660999449
decimal.Remainder( Left, Right )              123456789.0123456789
*/

// Example of the Decimal.Multiply, Decimal.Divide, and
// Decimal.Remainder methods.
open System

let dataFmt obj1 obj2 = printfn $"{obj1,-35}{obj2,31}"

// Display decimal parameters and their product, quotient, and remainder.
let showDecimalProQuoRem left right =
    printfn ""
    dataFmt "decimal left" left
    dataFmt "decimal right" right
    dataFmt "Decimal.Multiply( left, right )" (Decimal.Multiply(left, right))
    dataFmt "Decimal.Divide( left, right )" (Decimal.Divide(left, right))
    dataFmt "Decimal.Remainder( left, right )" (Decimal.Remainder(left, right))

printfn 
    """This example of the
  Decimal.Multiply( decimal, decimal ),
  Decimal.Divide( decimal, decimal ), and
  Decimal.Remainder( decimal, decimal )
methods generates the following output. It displays
the product, \nquotient, and remainder of several
pairs of decimal objects."""

// Create pairs of decimal objects.
showDecimalProQuoRem 1000M 7M
showDecimalProQuoRem -1000M 7M
showDecimalProQuoRem (Decimal(1230000000, 0, 0, false, 7uy)) 0.0012300M
showDecimalProQuoRem 12345678900000000M 0.0000000012345678M
showDecimalProQuoRem 123456789.0123456789M 123456789.1123456789M


// This example of the
//   Decimal.Multiply( decimal, decimal ),
//   Decimal.Divide( decimal, decimal ), and
//   Decimal.Remainder( decimal, decimal )
// methods generates the following output. It displays
// the product, \nquotient, and remainder of several  
// pairs of decimal objects.
//
// decimal left                                                  1000
// decimal right                                                    7
// Decimal.Multiply( left, right )                               7000
// Decimal.Divide( left, right )       142.85714285714285714285714286
// Decimal.Remainder( left, right )                                 6
//
// decimal left                                                 -1000
// decimal right                                                    7
// Decimal.Multiply( left, right )                              -7000
// Decimal.Divide( left, right )      -142.85714285714285714285714286
// Decimal.Remainder( left, right )                                -6
//
// decimal left                                           123.0000000
// decimal right                                            0.0012300
// Decimal.Multiply( left, right )                   0.15129000000000
// Decimal.Divide( left, right )                               100000
// Decimal.Remainder( left, right )                         0.0000000
//
// decimal left                                     12345678900000000
// decimal right                                   0.0000000012345678
// Decimal.Multiply( left, right )          15241577.6390794200000000
// Decimal.Divide( left, right )       10000000729000059778004901.796
// Decimal.Remainder( left, right )                0.0000000009832122
//
// decimal left                                  123456789.0123456789
// decimal right                                 123456789.1123456789
// Decimal.Multiply( left, right )     15241578765584515.651425087878
// Decimal.Divide( left, right )       0.9999999991899999933660999449
// Decimal.Remainder( left, right )              123456789.0123456789

Module DecimalMulDivRemDemo
    Const dataFmt As String = "{0,-35}{1,31}"

    ' Display Decimal parameters and their product, quotient, and 
    ' remainder.
    Sub ShowDecimalProQuoRem(left as Decimal, right as Decimal)
        Console.WriteLine()
        Console.WriteLine(dataFmt, "Decimal left", left )
        Console.WriteLine( dataFmt, "Decimal right", right )
        Console.WriteLine( dataFmt, 
            "Decimal.Multiply( left, right )", 
            Decimal.Multiply( left, right ) )
        Console.WriteLine( dataFmt, 
            "Decimal.Divide( left, right )", 
            Decimal.Divide( left, right ) )
        Console.WriteLine( dataFmt, 
            "Decimal.Remainder( left, right )", 
            Decimal.Remainder( left, right ) )
    End Sub

    Sub Main( )
        Console.WriteLine( "This example of the " & vbCrLf & 
            "  Decimal.Multiply( Decimal, Decimal ), " & vbCrLf & 
            "  Decimal.Divide( Decimal, Decimal ), and " & vbCrLf & 
            "  Decimal.Remainder( Decimal, Decimal ) " & vbCrLf & 
            "methods generates the following output. It displays " & 
            "the product, " & vbCrLf & "quotient, and remainder " & 
            "of several pairs of Decimal objects." )

        ' Create pairs of Decimal objects.
        ShowDecimalProQuoRem( 1000D, 7D ) 
        ShowDecimalProQuoRem( -1000D, 7D ) 
        ShowDecimalProQuoRem( 
            new Decimal( 1230000000, 0, 0, False, 7 ), 
            0.0012300D )
        ShowDecimalProQuoRem( 12345678900000000D, 
            0.0000000012345678D )
        ShowDecimalProQuoRem( 123456789.0123456789D, 
            123456789.1123456789D )
    End Sub
End Module 

' This example of the
'   Decimal.Multiply( Decimal, Decimal ),
'   Decimal.Divide( Decimal, Decimal ), and
'   Decimal.Remainder( Decimal, Decimal )
' methods generates the following output. It displays the product,
' quotient, and remainder of several pairs of Decimal objects.
' 
' Decimal left                                                  1000
' Decimal right                                                    7
' Decimal.Multiply( left, right )                               7000
' Decimal.Divide( left, right )       142.85714285714285714285714286
' Decimal.Remainder( left, right )                                 6
' 
' Decimal left                                                 -1000
' Decimal right                                                    7
' Decimal.Multiply( left, right )                              -7000
' Decimal.Divide( left, right )      -142.85714285714285714285714286
' Decimal.Remainder( left, right )                                -6
' 
' Decimal left                                           123.0000000
' Decimal right                                              0.00123
' Decimal.Multiply( left, right )                     0.151290000000
' Decimal.Divide( left, right )                            100000.00
' Decimal.Remainder( left, right )                                 0
' 
' Decimal left                                     12345678900000000
' Decimal right                                   0.0000000012345678
' Decimal.Multiply( left, right )          15241577.6390794200000000
' Decimal.Divide( left, right )       10000000729000059778004901.796
' Decimal.Remainder( left, right )                    0.000000000983
' 
' Decimal left                                  123456789.0123456789
' Decimal right                                 123456789.1123456789
' Decimal.Multiply( left, right )     15241578765584515.651425087878
' Decimal.Divide( left, right )       0.9999999991899999933660999449
' Decimal.Remainder( left, right )              123456789.0123456789

适用于

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Decimal.Multiply(Decimal, Decimal) 方法

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例外

示例

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