TimeSpan.UnaryNegation(TimeSpan) 操作员

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:: TimeSpan.cs

Source:: TimeSpan.cs

Source:: TimeSpan.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。

返回一个 TimeSpan，它的值为这个指定实例的相反值。

public:
 static TimeSpan operator -(TimeSpan t);

public static TimeSpan operator - (TimeSpan t);

static member ( ~- ) : TimeSpan -> TimeSpan

Public Shared Operator - (t As TimeSpan) As TimeSpan

参数

t: TimeSpan

要求反的时间间隔。

TimeSpan

与此实例的数值相同，但符号相反的对象。

例外

OverflowException

此实例的求反值不能由 TimeSpan表示;也就是说，此实例的值为 TimeSpan.MinValue。

示例

以下示例将 UnaryNegation 运算符应用于多个 TimeSpan 对象。

// Example of the TimeSpan::Duration( ) and TimeSpan::Negate( ) methods,
// and the TimeSpan Unary Negation and Unary Plus operators.
using namespace System;
const __wchar_t * protoFmt = L"{0,22}{1,22}{2,22}";
void ShowDurationNegate( TimeSpan interval )
{
   
   // Display the TimeSpan value and the results of the 
   // Duration and Negate methods.
   Console::WriteLine( gcnew String( protoFmt ), interval, interval.Duration(), interval.Negate() );
}

int main()
{
   Console::WriteLine( "This example of TimeSpan::Duration( ), "
   "TimeSpan::Negate( ), \nand the TimeSpan Unary "
   "Negation and Unary Plus operators \n"
   "generates the following output.\n" );
   Console::WriteLine( gcnew String( protoFmt ), "TimeSpan", "Duration( )", "Negate( )" );
   Console::WriteLine( gcnew String( protoFmt ), "--------", "-----------", "---------" );
   
   // Create TimeSpan objects and apply the Unary Negation
   // and Unary Plus operators to them.
   ShowDurationNegate( TimeSpan(1) );
   ShowDurationNegate( TimeSpan( -1234567) );
   ShowDurationNegate(  +TimeSpan(0,0,10,-20,-30) );
   ShowDurationNegate(  +TimeSpan(0,-10,20,-30,40) );
   ShowDurationNegate(  -TimeSpan(1,10,20,40,160) );
   ShowDurationNegate(  -TimeSpan( -10,-20,-30,-40,-50) );
}

/*
This example of TimeSpan::Duration( ), TimeSpan::Negate( ),
and the TimeSpan Unary Negation and Unary Plus operators
generates the following output.

              TimeSpan           Duration( )             Negate( )
              --------           -----------             ---------
      00:00:00.0000001      00:00:00.0000001     -00:00:00.0000001
     -00:00:00.1234567      00:00:00.1234567      00:00:00.1234567
      00:09:39.9700000      00:09:39.9700000     -00:09:39.9700000
     -09:40:29.9600000      09:40:29.9600000      09:40:29.9600000
   -1.10:20:40.1600000    1.10:20:40.1600000    1.10:20:40.1600000
   10.20:30:40.0500000   10.20:30:40.0500000  -10.20:30:40.0500000
*/

// Example of the TimeSpan.Duration( ) and TimeSpan.Negate( ) methods,
// and the TimeSpan Unary Negation and Unary Plus operators.
using System;

class DuraNegaUnaryDemo
{
    const string dataFmt = "{0,22}{1,22}{2,22}" ;

    static void ShowDurationNegate( TimeSpan interval )
    {
        // Display the TimeSpan value and the results of the 
        // Duration and Negate methods.
        Console.WriteLine( dataFmt, 
            interval, interval.Duration( ), interval.Negate( ) );
    }

    static void Main()
    {
        Console.WriteLine(
            "This example of TimeSpan.Duration( ), " +
            "TimeSpan.Negate( ), \nand the TimeSpan Unary " +
            "Negation and Unary Plus operators \n" +
            "generates the following output.\n" );
        Console.WriteLine( dataFmt, 
            "TimeSpan", "Duration( )", "Negate( )" );
        Console.WriteLine( dataFmt, 
            "--------", "-----------", "---------" );

        // Create TimeSpan objects and apply the Unary Negation
        // and Unary Plus operators to them.
        ShowDurationNegate( new TimeSpan( 1 ) );
        ShowDurationNegate( new TimeSpan( -1234567 ) );
        ShowDurationNegate( 
            + new TimeSpan( 0, 0, 10, -20, -30 ) );
        ShowDurationNegate( 
            + new TimeSpan( 0, -10, 20, -30, 40 ) );
        ShowDurationNegate( 
            - new TimeSpan( 1, 10, 20, 40, 160 ) );
        ShowDurationNegate( 
            - new TimeSpan( -10, -20, -30, -40, -50 ) );
    } 
} 

/*
This example of TimeSpan.Duration( ), TimeSpan.Negate( ),
and the TimeSpan Unary Negation and Unary Plus operators
generates the following output.

              TimeSpan           Duration( )             Negate( )
              --------           -----------             ---------
      00:00:00.0000001      00:00:00.0000001     -00:00:00.0000001
     -00:00:00.1234567      00:00:00.1234567      00:00:00.1234567
      00:09:39.9700000      00:09:39.9700000     -00:09:39.9700000
     -09:40:29.9600000      09:40:29.9600000      09:40:29.9600000
   -1.10:20:40.1600000    1.10:20:40.1600000    1.10:20:40.1600000
   10.20:30:40.0500000   10.20:30:40.0500000  -10.20:30:40.0500000
*/

// Example of the TimeSpan.Duration( ) and TimeSpan.Negate( ) methods,
// and the TimeSpan Unary Negation and Unary Plus operators.
open System

let showDurationNegate (interval: TimeSpan) =
    // Display the TimeSpan value and the results of the 
    // Duration and Negate methods.
    printfn $"{interval,22}{interval.Duration(),22}{interval.Negate(),22}"

printfn "This example of TimeSpan.Duration( ), TimeSpan.Negate( ), \nand the TimeSpan Unary Negation and Unary Plus operators \ngenerates the following output.\n" 
printfn "%22s%22s%22s" "TimeSpan" "Duration( )" "Negate( )"
printfn "%22s%22s%22s" "--------" "-----------" "---------"

// Create TimeSpan objects and apply the Unary Negation
// and Unary Plus operators to them.
showDurationNegate (TimeSpan 1)
showDurationNegate (TimeSpan -1234567)
showDurationNegate (+ TimeSpan(0, 0, 10, -20, -30) )
showDurationNegate (+ TimeSpan(0, -10, 20, -30, 40) )
showDurationNegate (- TimeSpan(1, 10, 20, 40, 160 ) )
showDurationNegate (- TimeSpan(-10, -20, -30, -40, -50) )

(*
This example of TimeSpan.Duration( ), TimeSpan.Negate( ),
and the TimeSpan Unary Negation and Unary Plus operators
generates the following output.

              TimeSpan           Duration( )             Negate( )
              --------           -----------             ---------
      00:00:00.0000001      00:00:00.0000001     -00:00:00.0000001
     -00:00:00.1234567      00:00:00.1234567      00:00:00.1234567
      00:09:39.9700000      00:09:39.9700000     -00:09:39.9700000
     -09:40:29.9600000      09:40:29.9600000      09:40:29.9600000
   -1.10:20:40.1600000    1.10:20:40.1600000    1.10:20:40.1600000
   10.20:30:40.0500000   10.20:30:40.0500000  -10.20:30:40.0500000
*)

' Example of the TimeSpan.Duration( ) and TimeSpan.Negate( ) methods,
' and the TimeSpan Unary Negation and Unary Plus operators.
Module DuraNegaUnaryDemo

    Const dataFmt As String = "{0,22}{1,22}{2,22}"

    Sub ShowDurationNegate( interval As TimeSpan )

        ' Display the TimeSpan value and the results of the 
        ' Duration and Negate methods.
        Console.WriteLine( dataFmt, _
            interval, interval.Duration( ), interval.Negate( ) )
    End Sub

    Sub Main( )

        Console.WriteLine( _
            "This example of TimeSpan.Duration( ), " & _
            "TimeSpan.Negate( ), " & vbCrLf & _
            "and the TimeSpan Unary Negation and " & _
            "Unary Plus operators " & vbCrLf & _
            "generates the following output." & vbCrLf )
        Console.WriteLine( dataFmt, _
            "TimeSpan", "Duration( )", "Negate( )" )    
        Console.WriteLine( dataFmt, _
            "--------", "-----------", "---------" )    

        ' Create TimeSpan objects and apply the Unary Negation
        ' and Unary Plus operators to them.
        ShowDurationNegate( new TimeSpan( 1 ) )
        ShowDurationNegate( new TimeSpan( -1234567 ) )
        ShowDurationNegate( TimeSpan.op_UnaryPlus( _
            new TimeSpan( 0, 0, 10, -20, -30 ) ) )
        ShowDurationNegate( TimeSpan.op_UnaryPlus( _
            new TimeSpan( 0, -10, 20, -30, 40 ) ) )
        ShowDurationNegate( TimeSpan.op_UnaryNegation( _
            new TimeSpan( 1, 10, 20, 40, 160 ) ) )
        ShowDurationNegate( TimeSpan.op_UnaryNegation( _
            new TimeSpan( -10, -20, -30, -40, -50 ) ) )
    End Sub 
End Module 

' This example of TimeSpan.Duration( ), TimeSpan.Negate( ),
' and the TimeSpan Unary Negation and Unary Plus operators
' generates the following output.
' 
'               TimeSpan           Duration( )             Negate( )
'               --------           -----------             ---------
'       00:00:00.0000001      00:00:00.0000001     -00:00:00.0000001
'      -00:00:00.1234567      00:00:00.1234567      00:00:00.1234567
'       00:09:39.9700000      00:09:39.9700000     -00:09:39.9700000
'      -09:40:29.9600000      09:40:29.9600000      09:40:29.9600000
'    -1.10:20:40.1600000    1.10:20:40.1600000    1.10:20:40.1600000
'    10.20:30:40.0500000   10.20:30:40.0500000  -10.20:30:40.0500000

注解

此运算符的等效方法是 TimeSpan.Negate()

适用于

通过

TimeSpan.UnaryNegation(TimeSpan) 操作员

定义

参数

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例外

示例

注解

适用于

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