Decimal.Truncate(Decimal) Method
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Returns the integral digits of the specified Decimal; any fractional digits are discarded.
public:
static System::Decimal Truncate(System::Decimal d);
public:
static System::Decimal Truncate(System::Decimal d) = System::Numerics::IFloatingPoint<System::Decimal>::Truncate;
public static decimal Truncate (decimal d);
static member Truncate : decimal -> decimal
Public Shared Function Truncate (d As Decimal) As Decimal
- d
- Decimal
The decimal number to truncate.
The result of d
rounded toward zero, to the nearest whole number.
The following code example uses the Truncate
method to discard the fractional digits of several Decimal
values.
// Example of the Decimal::Negate, Decimal::Floor, and
// Decimal::Truncate methods.
using namespace System;
// Display Decimal parameters and the method results.
void ShowDecimalFloorNegTrunc( Decimal Argument )
{
String^ dataFmt = "{0,-30}{1,26}";
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 ) );
}
int 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( Decimal::Parse( "0" ) );
ShowDecimalFloorNegTrunc( Decimal::Parse( "123.456" ) );
ShowDecimalFloorNegTrunc( Decimal::Parse( "-123.456" ) );
ShowDecimalFloorNegTrunc( Decimal(1230000000,0,0,true,7) );
ShowDecimalFloorNegTrunc( Decimal::Parse( "-9999999999.9999999999" ) );
}
/*
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.
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
This method rounds d
toward zero, to the nearest whole number, which corresponds to discarding any digits after the decimal point.
产品 | 版本 |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
UWP | 10.0 |