TimeSpan.Zero Campo

Definición

Representa el valor cero de TimeSpan.Represents the zero TimeSpan value. Este campo es de solo lectura.This field is read-only.

public: static initonly TimeSpan Zero;
public static readonly TimeSpan Zero;
 staticval mutable Zero : TimeSpan
Public Shared ReadOnly Zero As TimeSpan 

Valor de campo

Ejemplos

En el ejemplo siguiente se hace referencia a y se muestra el valor del campo Zero.The following example references and displays the value of the Zero field.

// Example of the TimeSpan fields.
using namespace System;

// Pad the end of a TimeSpan string with spaces if it does not 
// contain milliseconds.
String^ Align( TimeSpan interval )
{
   String^ intervalStr = interval.ToString();
   int pointIndex = intervalStr->IndexOf( ':' );
   pointIndex = intervalStr->IndexOf( '.', pointIndex );
   if ( pointIndex < 0 )
      intervalStr = String::Concat( intervalStr, "        " );

   return intervalStr;
}

int main()
{
   String^ numberFmt = "{0,-22}{1,18:N0}";
   String^ timeFmt = "{0,-22}{1,26}";
   Console::WriteLine( "This example of the fields of the TimeSpan class"
   "\ngenerates the following output.\n" );
   Console::WriteLine( numberFmt, "Field", "Value" );
   Console::WriteLine( numberFmt, "-----", "-----" );
   
   // Display the maximum, minimum, and zero TimeSpan values.
   Console::WriteLine( timeFmt, "Maximum TimeSpan", Align( TimeSpan::MaxValue ) );
   Console::WriteLine( timeFmt, "Minimum TimeSpan", Align( TimeSpan::MinValue ) );
   Console::WriteLine( timeFmt, "Zero TimeSpan", Align( TimeSpan::Zero ) );
   Console::WriteLine();
   
   // Display the ticks-per-time-unit fields.
   Console::WriteLine( numberFmt, "Ticks per day", TimeSpan::TicksPerDay );
   Console::WriteLine( numberFmt, "Ticks per hour", TimeSpan::TicksPerHour );
   Console::WriteLine( numberFmt, "Ticks per minute", TimeSpan::TicksPerMinute );
   Console::WriteLine( numberFmt, "Ticks per second", TimeSpan::TicksPerSecond );
   Console::WriteLine( numberFmt, "Ticks per millisecond", TimeSpan::TicksPerMillisecond );
}

/*
This example of the fields of the TimeSpan class
generates the following output.

Field                              Value
-----                              -----
Maximum TimeSpan       10675199.02:48:05.4775807
Minimum TimeSpan      -10675199.02:48:05.4775808
Zero TimeSpan                   00:00:00

Ticks per day            864,000,000,000
Ticks per hour            36,000,000,000
Ticks per minute             600,000,000
Ticks per second              10,000,000
Ticks per millisecond             10,000
*/
// Example of the TimeSpan fields.
using System;

class TimeSpanFieldsDemo
{
    // Pad the end of a TimeSpan string with spaces if it does not 
    // contain milliseconds.
    static string Align( TimeSpan interval )
    {
        string  intervalStr = interval.ToString( );
        int     pointIndex = intervalStr.IndexOf( ':' );

        pointIndex = intervalStr.IndexOf( '.', pointIndex );
        if( pointIndex < 0 ) intervalStr += "        ";
        return intervalStr;
    } 

    static void Main( )
    {
        const string numberFmt = "{0,-22}{1,18:N0}" ;
        const string timeFmt = "{0,-22}{1,26}" ;

        Console.WriteLine( 
            "This example of the fields of the TimeSpan class" +
            "\ngenerates the following output.\n" );
        Console.WriteLine( numberFmt, "Field", "Value" );
        Console.WriteLine( numberFmt, "-----", "-----" );

        // Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine( timeFmt, "Maximum TimeSpan", 
            Align( TimeSpan.MaxValue ) );
        Console.WriteLine( timeFmt, "Minimum TimeSpan", 
            Align( TimeSpan.MinValue ) );
        Console.WriteLine( timeFmt, "Zero TimeSpan", 
            Align( TimeSpan.Zero ) );
        Console.WriteLine( );

        // Display the ticks-per-time-unit fields.
        Console.WriteLine( numberFmt, "Ticks per day", 
            TimeSpan.TicksPerDay );
        Console.WriteLine( numberFmt, "Ticks per hour", 
            TimeSpan.TicksPerHour );
        Console.WriteLine( numberFmt, "Ticks per minute", 
            TimeSpan.TicksPerMinute );
        Console.WriteLine( numberFmt, "Ticks per second", 
            TimeSpan.TicksPerSecond );
        Console.WriteLine( numberFmt, "Ticks per millisecond", 
            TimeSpan.TicksPerMillisecond );
    }
} 

/*
This example of the fields of the TimeSpan class
generates the following output.

Field                              Value
-----                              -----
Maximum TimeSpan       10675199.02:48:05.4775807
Minimum TimeSpan      -10675199.02:48:05.4775808
Zero TimeSpan                   00:00:00

Ticks per day            864,000,000,000
Ticks per hour            36,000,000,000
Ticks per minute             600,000,000
Ticks per second              10,000,000
Ticks per millisecond             10,000
*/
' Example of the TimeSpan fields.
Module TimeSpanFieldsDemo
    
    ' Pad the end of a TimeSpan string with spaces if it does not 
    ' contain milliseconds.
    Function Align( interval As TimeSpan ) As String

        Dim intervalStr As String = interval.ToString( )
        Dim pointIndex  As Integer = intervalStr.IndexOf( ":"c )

        pointIndex = intervalStr.IndexOf( "."c, pointIndex )
        If pointIndex < 0 Then intervalStr &= "        "
        Align = intervalStr
    End Function
    
    Sub Main( )

        Const numberFmt As String = "{0,-22}{1,18:N0}"
        Const timeFmt As String = "{0,-22}{1,26}"

        Console.WriteLine( _
            "This example of the fields of the TimeSpan class" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( numberFmt, "Field", "Value" )
        Console.WriteLine( numberFmt, "-----", "-----" )

        ' Display the maximum, minimum, and zero TimeSpan values.
        Console.WriteLine( timeFmt, "Maximum TimeSpan", _
            Align( TimeSpan.MaxValue ) )
        Console.WriteLine( timeFmt, "Minimum TimeSpan", _
            Align( TimeSpan.MinValue ) )
        Console.WriteLine( timeFmt, "Zero TimeSpan", _
            Align( TimeSpan.Zero ) )
        Console.WriteLine( )

        ' Display the ticks-per-time-unit fields.
        Console.WriteLine( numberFmt, "Ticks per day", _
            TimeSpan.TicksPerDay )
        Console.WriteLine( numberFmt, "Ticks per hour", _
            TimeSpan.TicksPerHour )
        Console.WriteLine( numberFmt, "Ticks per minute", _
            TimeSpan.TicksPerMinute )
        Console.WriteLine( numberFmt, "Ticks per second", _
            TimeSpan.TicksPerSecond )
        Console.WriteLine( numberFmt, "Ticks per millisecond", _
            TimeSpan.TicksPerMillisecond )
    End Sub 
End Module 

' This example of the fields of the TimeSpan class
' generates the following output.
' 
' Field                              Value
' -----                              -----
' Maximum TimeSpan       10675199.02:48:05.4775807
' Minimum TimeSpan      -10675199.02:48:05.4775808
' Zero TimeSpan                   00:00:00
' 
' Ticks per day            864,000,000,000
' Ticks per hour            36,000,000,000
' Ticks per minute             600,000,000
' Ticks per second              10,000,000
' Ticks per millisecond             10,000

Comentarios

Dado que el valor del campo Zero es un objeto TimeSpan que representa un valor de tiempo cero, puede compararlo con otros objetos TimeSpan para determinar si estos últimos representan intervalos de tiempo positivos, distintos de cero o negativos.Because the value of the Zero field is a TimeSpan object that represents a zero time value, you can compare it with other TimeSpan objects to determine whether the latter represent positive, non-zero, or negative time intervals. También puede usar este campo para inicializar un objeto de TimeSpan en un valor de hora cero.You can also use this field to initialize a TimeSpan object to a zero time value.

Se aplica a