指定した Decimal の整数の桁を返します。小数の桁は破棄されます。
Public Shared Function Truncate( _
ByVal d As Decimal _) As Decimal
[C#]
public static decimal Truncate(decimald);
[C++]
public: static Decimal Truncate(Decimald);
[JScript]
public static function Truncate(
d : Decimal) : Decimal;
パラメータ
- d
切り捨てる Decimal 。
戻り値
d を 0 方向の近似整数に丸めた結果の Decimal 。
解説
このメソッドは、 d を 0 方向の近似整数に丸めます。小数点以下の桁は破棄されます。
使用例
[Visual Basic, C#, C++] Truncate メソッドを使用して、複数の Decimal 値の少数部を廃棄するコード例を次に示します。
' Example of the Decimal.Negate, Decimal.Floor, and Decimal.Truncate
' methods.
Imports System
Imports Microsoft.VisualBasic
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
[C#]
// 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
*/
[C++]
// Example of the Decimal::Negate, Decimal::Floor, and
// Decimal::Truncate methods.
#using <mscorlib.dll>
using namespace System;
// Display Decimal parameters and the method results.
void ShowDecimalFloorNegTrunc( Decimal Argument )
{
String* dataFmt = S"{0,-30}{1,26}";
Console::WriteLine( );
Console::WriteLine( dataFmt, S"Decimal Argument",
__box( Argument ) );
Console::WriteLine( dataFmt, S"Decimal::Negate( Argument )",
__box( Decimal::Negate( Argument ) ) );
Console::WriteLine( dataFmt, S"Decimal::Floor( Argument )",
__box( Decimal::Floor( Argument ) ) );
Console::WriteLine( dataFmt, S"Decimal::Truncate( Argument )",
__box( Decimal::Truncate( Argument ) ) );
}
void main( )
{
Console::WriteLine( S"This example of the \n"
S" Decimal::Negate( Decimal ), \n"
S" Decimal::Floor( Decimal ), and \n"
S" Decimal::Truncate( Decimal ) \n"
S"methods generates the following output." );
// Create pairs of Decimal objects.
ShowDecimalFloorNegTrunc( Decimal::Parse( S"0" ) );
ShowDecimalFloorNegTrunc( Decimal::Parse( S"123.456" ) );
ShowDecimalFloorNegTrunc( Decimal::Parse( S"-123.456" ) );
ShowDecimalFloorNegTrunc( Decimal( 1230000000, 0, 0, true, 7 ) );
ShowDecimalFloorNegTrunc(
Decimal::Parse( S"-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
*/
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をクリックします。
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard
参照
Decimal 構造体 | Decimal メンバ | System 名前空間 | Round | Floor