Decimal.Truncate(Decimal) Méthode

Définition

Espace de noms:
System
Assemblys:
mscorlib.dll, System.Runtime.dll
Assembly:
mscorlib.dll
Assembly:
System.Runtime.dll
Assembly:
netstandard.dll

Retourne les chiffres intégraux du chiffre spécifié Decimal; tous les chiffres fractionnels sont ignorés.

public:
 static System::Decimal Truncate(System::Decimal d);
public static decimal Truncate(decimal d);
static member Truncate : decimal -> decimal
Public Shared Function Truncate (d As Decimal) As Decimal

Paramètres

d
Decimal

Nombre décimal à tronquer.

Retours

Decimal

Résultat arrondi d vers zéro, au nombre entier le plus proche.

Exemples

L’exemple de code suivant utilise la Truncate méthode pour ignorer les chiffres fractionnels de plusieurs Decimal valeurs.

// Example of the decimal.Negate, decimal.Floor, and decimal.Truncate
// methods.
using System;

class DecimalFloorNegTruncDemo
{
    const string dataFmt = "{0,-30}{1,26}";

    // Display decimal parameters and the method results.
    public static void ShowDecimalFloorNegTrunc( decimal Argument )
    {
        Console.WriteLine( );
        Console.WriteLine( dataFmt, "decimal Argument", Argument );
        Console.WriteLine( dataFmt, "decimal.Negate( Argument )",
            decimal.Negate( Argument ) );
        Console.WriteLine( dataFmt, "decimal.Floor( Argument )",
            decimal.Floor( Argument ) );
        Console.WriteLine( dataFmt, "decimal.Truncate( Argument )",
            decimal.Truncate( Argument ) );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the \n" +
            "  decimal.Negate( decimal ), \n" +
            "  decimal.Floor( decimal ), and \n" +
            "  decimal.Truncate( decimal ) \n" +
            "methods generates the following output." );

        // Create pairs of decimal objects.
        ShowDecimalFloorNegTrunc( 0M );
        ShowDecimalFloorNegTrunc( 123.456M );
        ShowDecimalFloorNegTrunc( -123.456M );
        ShowDecimalFloorNegTrunc(
            new decimal( 1230000000, 0, 0, true, 7 ) );
        ShowDecimalFloorNegTrunc( -9999999999.9999999999M );
    }
}

/*
This example of the
  decimal.Negate( decimal ),
  decimal.Floor( decimal ), and
  decimal.Truncate( decimal )
methods generates the following output.

decimal Argument                                       0
decimal.Negate( Argument )                             0
decimal.Floor( Argument )                              0
decimal.Truncate( Argument )                           0

decimal Argument                                 123.456
decimal.Negate( Argument )                      -123.456
decimal.Floor( Argument )                            123
decimal.Truncate( Argument )                         123

decimal Argument                                -123.456
decimal.Negate( Argument )                       123.456
decimal.Floor( Argument )                           -124
decimal.Truncate( Argument )                        -123

decimal Argument                            -123.0000000
decimal.Negate( Argument )                   123.0000000
decimal.Floor( Argument )                           -123
decimal.Truncate( Argument )                        -123

decimal Argument                  -9999999999.9999999999
decimal.Negate( Argument )         9999999999.9999999999
decimal.Floor( Argument )                   -10000000000
decimal.Truncate( Argument )                 -9999999999
*/

// Example of the decimal.Negate, decimal.Floor, and decimal.Truncate
// methods.
open System

let dataFmt obj1 obj2 = printfn $"{obj1,-30}{obj2,26}"

// Display decimal parameters and the method results.
let showDecimalFloorNegTrunc (argument: decimal) =
    printfn ""
    dataFmt "decimal argument" argument
    dataFmt "Decimal.Negate( argument )" (Decimal.Negate argument)
    dataFmt "decimal.Floor( argument )" (Decimal.Floor argument)
    dataFmt "decimal.Truncate( argument )" (Decimal.Truncate argument)

printfn 
    """This example of the
  decimal.Negate( decimal ),
  decimal.Floor( decimal ), and
  decimal.Truncate( decimal )
methods generates the following output."""

// Create pairs of decimal objects.
showDecimalFloorNegTrunc 0M
showDecimalFloorNegTrunc 123.456M
showDecimalFloorNegTrunc -123.456M
showDecimalFloorNegTrunc (Decimal(1230000000, 0, 0, true, 7uy))
showDecimalFloorNegTrunc -9999999999.9999999999M


// This example of the
//   decimal.Negate( decimal ),
//   decimal.Floor( decimal ), and        
//   decimal.Truncate( decimal )
// methods generates the following output.
//
// decimal argument                                       0
// Decimal.Negate( argument )                             0
// decimal.Floor( argument )                              0
// decimal.Truncate( argument )                           0
//
// decimal argument                                 123.456
// Decimal.Negate( argument )                      -123.456
// decimal.Floor( argument )                            123
// decimal.Truncate( argument )                         123
//
// decimal argument                                -123.456
// Decimal.Negate( argument )                       123.456
// decimal.Floor( argument )                           -124
// decimal.Truncate( argument )                        -123
//
// decimal argument                            -123.0000000
// Decimal.Negate( argument )                   123.0000000
// decimal.Floor( argument )                           -123
// decimal.Truncate( argument )                        -123
//
// decimal argument                  -9999999999.9999999999
// Decimal.Negate( argument )         9999999999.9999999999
// decimal.Floor( argument )                   -10000000000
// decimal.Truncate( argument )                 -9999999999

' Example of the Decimal.Negate, Decimal.Floor, and Decimal.Truncate 
' methods. 
Module DecimalFloorNegTruncDemo
    
    Const dataFmt As String = "{0,-30}{1,26}"

    ' Display Decimal parameters and their product, quotient, and 
    ' remainder.
    Sub ShowDecimalFloorNegTrunc( Argument as Decimal )

        Console.WriteLine( )
        Console.WriteLine( dataFmt, "Decimal Argument", Argument )
        Console.WriteLine( dataFmt, _
            "Decimal.Negate( Argument )", _
            Decimal.Negate( Argument ) )
        Console.WriteLine( dataFmt, _
            "Decimal.Floor( Argument )", _
            Decimal.Floor( Argument ) )
        Console.WriteLine( dataFmt, _
            "Decimal.Truncate( Argument )", _
            Decimal.Truncate( Argument ) )
    End Sub

    Sub Main( )
        Console.WriteLine( "This example of the " & vbCrLf & _
            "  Decimal.Negate( Decimal ), " & vbCrLf & _
            "  Decimal.Floor( Decimal ), and " & vbCrLf & _
            "  Decimal.Truncate( Decimal ) " & vbCrLf & _
            "methods generates the following output." )

        ' Create pairs of Decimal objects.
        ShowDecimalFloorNegTrunc( 0D ) 
        ShowDecimalFloorNegTrunc( 123.456D ) 
        ShowDecimalFloorNegTrunc( -123.456D ) 
        ShowDecimalFloorNegTrunc( _
            new Decimal( 1230000000, 0, 0, True, 7 ) )
        ShowDecimalFloorNegTrunc( -9999999999.9999999999D )
    End Sub
End Module 

' This example of the
'   Decimal.Negate( Decimal ),
'   Decimal.Floor( Decimal ), and
'   Decimal.Truncate( Decimal )
' methods generates the following output.
' 
' Decimal Argument                                       0
' Decimal.Negate( Argument )                             0
' Decimal.Floor( Argument )                              0
' Decimal.Truncate( Argument )                           0
' 
' Decimal Argument                                 123.456
' Decimal.Negate( Argument )                      -123.456
' Decimal.Floor( Argument )                            123
' Decimal.Truncate( Argument )                         123
' 
' Decimal Argument                                -123.456
' Decimal.Negate( Argument )                       123.456
' Decimal.Floor( Argument )                           -124
' Decimal.Truncate( Argument )                        -123
' 
' Decimal Argument                            -123.0000000
' Decimal.Negate( Argument )                   123.0000000
' Decimal.Floor( Argument )                           -123
' Decimal.Truncate( Argument )                        -123
' 
' Decimal Argument                  -9999999999.9999999999
' Decimal.Negate( Argument )         9999999999.9999999999
' Decimal.Floor( Argument )                   -10000000000
' Decimal.Truncate( Argument )                 -9999999999

Remarques

Cette méthode arrondit d vers zéro, jusqu’au nombre entier le plus proche, ce qui correspond à l’abandon des chiffres après la virgule décimale.

S’applique à

Voir aussi