TimeSpan.FromSeconds 方法

參考

定義

命名空間:: System

組件:: System.Runtime.dll

組件:: mscorlib.dll

組件:: netstandard.dll

重要

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多載

FromSeconds(Double)	會傳回代表指定秒數的 TimeSpan，其中規格精確到最接近毫秒。
FromSeconds(Int64)	將 TimeSpan 結構的新實例初始化為指定的秒數。
FromSeconds(Int64, Int64, Int64)	將 TimeSpan 結構的新實例初始化為指定的秒數、毫秒和微秒數。

FromSeconds(Double)

來源:: TimeSpan.cs

來源:: TimeSpan.cs

來源:: TimeSpan.cs

會傳回代表指定秒數的 TimeSpan，其中規格精確到最接近毫秒。

public:
 static TimeSpan FromSeconds(double value);

public static TimeSpan FromSeconds (double value);

static member FromSeconds : double -> TimeSpan

Public Shared Function FromSeconds (value As Double) As TimeSpan

參數

value: Double

秒數，精確到最接近毫秒。

傳回

TimeSpan

物件，表示 value。

例外狀況

OverflowException

value 小於 TimeSpan.MinValue 或大於 TimeSpan.MaxValue。

-或-

value PositiveInfinity。

-或-

value NegativeInfinity。

ArgumentException

value 等於 NaN。

範例

下列範例會使用 FromSeconds 方法建立數個 TimeSpan 物件。

// Example of the TimeSpan::FromSeconds( double ) method.
using namespace System;
void GenTimeSpanFromSeconds( double seconds )
{
   
   // Create a TimeSpan object and TimeSpan string from 
   // a number of seconds.
   TimeSpan interval = TimeSpan::FromSeconds( seconds );
   String^ timeInterval = interval.ToString();
   
   // Pad the end of the TimeSpan string with spaces if it 
   // does not contain milliseconds.
   int pIndex = timeInterval->IndexOf( ':' );
   pIndex = timeInterval->IndexOf( '.', pIndex );
   if ( pIndex < 0 )
      timeInterval = String::Concat( timeInterval, "        " );

   Console::WriteLine( "{0,21}{1,26}", seconds, timeInterval );
}

int main()
{
   Console::WriteLine( "This example of TimeSpan::FromSeconds( double )\n"
   "generates the following output.\n" );
   Console::WriteLine( "{0,21}{1,18}", "FromSeconds", "TimeSpan" );
   Console::WriteLine( "{0,21}{1,18}", "-----------", "--------" );
   GenTimeSpanFromSeconds( 0.001 );
   GenTimeSpanFromSeconds( 0.0015 );
   GenTimeSpanFromSeconds( 12.3456 );
   GenTimeSpanFromSeconds( 123456.7898 );
   GenTimeSpanFromSeconds( 1234567898.7654 );
   GenTimeSpanFromSeconds( 1 );
   GenTimeSpanFromSeconds( 60 );
   GenTimeSpanFromSeconds( 3600 );
   GenTimeSpanFromSeconds( 86400 );
   GenTimeSpanFromSeconds( 1801220.2 );
}

/*
This example of TimeSpan::FromSeconds( double )
generates the following output.

          FromSeconds          TimeSpan
          -----------          --------
                0.001          00:00:00.0010000
               0.0015          00:00:00.0020000
              12.3456          00:00:12.3460000
          123456.7898        1.10:17:36.7900000
      1234567898.7654    14288.23:31:38.7650000
                    1          00:00:01
                   60          00:01:00
                 3600          01:00:00
                86400        1.00:00:00
            1801220.2       20.20:20:20.2000000
*/

// Example of the TimeSpan.FromSeconds( double ) method.
using System;

class FromSecondsDemo
{
    static void GenTimeSpanFromSeconds( double seconds )
    {
        // Create a TimeSpan object and TimeSpan string from 
        // a number of seconds.
        TimeSpan    interval = TimeSpan.FromSeconds( seconds );
        string      timeInterval = interval.ToString( );

        // Pad the end of the TimeSpan string with spaces if it 
        // does not contain milliseconds.
        int pIndex = timeInterval.IndexOf( ':' );
        pIndex = timeInterval.IndexOf( '.', pIndex );
        if( pIndex < 0 )   timeInterval += "        ";

        Console.WriteLine( "{0,21}{1,26}", seconds, timeInterval );
    } 

    static void Main( )
    {
        Console.WriteLine(
            "This example of TimeSpan.FromSeconds( double )\n" +
            "generates the following output.\n" );
        Console.WriteLine( "{0,21}{1,18}",
            "FromSeconds", "TimeSpan" );
        Console.WriteLine( "{0,21}{1,18}", 
            "-----------", "--------" );

        GenTimeSpanFromSeconds( 0.001 );
        GenTimeSpanFromSeconds( 0.0015 );
        GenTimeSpanFromSeconds( 12.3456 );
        GenTimeSpanFromSeconds( 123456.7898 );
        GenTimeSpanFromSeconds( 1234567898.7654 );
        GenTimeSpanFromSeconds( 1 );
        GenTimeSpanFromSeconds( 60 );
        GenTimeSpanFromSeconds( 3600 );
        GenTimeSpanFromSeconds( 86400 );
        GenTimeSpanFromSeconds( 1801220.2 );
    } 
} 

/*
This example of TimeSpan.FromSeconds( double )
generates the following output.

          FromSeconds          TimeSpan
          -----------          --------
                0.001          00:00:00.0010000
               0.0015          00:00:00.0020000
              12.3456          00:00:12.3460000
          123456.7898        1.10:17:36.7900000
      1234567898.7654    14288.23:31:38.7650000
                    1          00:00:01
                   60          00:01:00
                 3600          01:00:00
                86400        1.00:00:00
            1801220.2       20.20:20:20.2000000
*/

// Example of the TimeSpan.FromSeconds( double ) method.
open System

let genTimeSpanFromSeconds seconds =
    // Create a TimeSpan object and TimeSpan string from 
    // a number of seconds.
    let interval = TimeSpan.FromSeconds seconds
    let timeInterval = string interval

    // Pad the end of the TimeSpan string with spaces if it 
    // does not contain milliseconds.
    let pIndex = timeInterval.IndexOf ':'
    let pIndex = timeInterval.IndexOf('.', pIndex)
    let timeInterval =
        if pIndex < 0 then timeInterval + "        "
        else timeInterval

    printfn $"{seconds,21}{timeInterval,26}"

printfn "This example of TimeSpan.FromSeconds( double )\ngenerates the following output.\n"
printfn "%21s%18s" "FromSeconds" "TimeSpan"
printfn "%21s%18s" "-----------" "--------"

genTimeSpanFromSeconds 0.001
genTimeSpanFromSeconds 0.0015
genTimeSpanFromSeconds 12.3456
genTimeSpanFromSeconds 123456.7898
genTimeSpanFromSeconds 1234567898.7654
genTimeSpanFromSeconds 1
genTimeSpanFromSeconds 60
genTimeSpanFromSeconds 3600
genTimeSpanFromSeconds 86400
genTimeSpanFromSeconds 1801220.2

(*
This example of TimeSpan.FromSeconds( double )
generates the following output.

          FromSeconds          TimeSpan
          -----------          --------
                0.001          00:00:00.0010000
               0.0015          00:00:00.0020000
              12.3456          00:00:12.3460000
          123456.7898        1.10:17:36.7900000
      1234567898.7654    14288.23:31:38.7650000
                    1          00:00:01
                   60          00:01:00
                 3600          01:00:00
                86400        1.00:00:00
            1801220.2       20.20:20:20.2000000
*)

' Example of the TimeSpan.FromSeconds( Double ) method.
Module FromSecondsDemo

    Sub GenTimeSpanFromSeconds( seconds As Double )

        ' Create a TimeSpan object and TimeSpan string from 
        ' a number of seconds.
        Dim interval As TimeSpan = _
            TimeSpan.FromSeconds( seconds )
        Dim timeInterval As String = interval.ToString( )

        ' Pad the end of the TimeSpan string with spaces if it 
        ' does not contain milliseconds.
        Dim pIndex As Integer = timeInterval.IndexOf( ":"c )
        pIndex = timeInterval.IndexOf( "."c, pIndex )
        If pIndex < 0 Then   timeInterval &= "        "

        Console.WriteLine( "{0,21}{1,26}", seconds, timeInterval )
    End Sub 

    Sub Main( )

        Console.WriteLine( "This example of " & _
            "TimeSpan.FromSeconds( Double )" & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,21}{1,18}", _
            "FromSeconds", "TimeSpan" )    
        Console.WriteLine( "{0,21}{1,18}", _
            "-----------", "--------" )    

        GenTimeSpanFromSeconds( 0.001 )
        GenTimeSpanFromSeconds( 0.0015 )
        GenTimeSpanFromSeconds( 12.3456 )
        GenTimeSpanFromSeconds( 123456.7898 )
        GenTimeSpanFromSeconds( 1234567898.7654 )
        GenTimeSpanFromSeconds( 1 )
        GenTimeSpanFromSeconds( 60 )
        GenTimeSpanFromSeconds( 3600 )
        GenTimeSpanFromSeconds( 86400 )
        GenTimeSpanFromSeconds( 1801220.2 )
    End Sub
End Module 

' This example of TimeSpan.FromSeconds( Double )
' generates the following output.
' 
'           FromSeconds          TimeSpan
'           -----------          --------
'                 0.001          00:00:00.0010000
'                0.0015          00:00:00.0020000
'               12.3456          00:00:12.3460000
'           123456.7898        1.10:17:36.7900000
'       1234567898.7654    14288.23:31:38.7650000
'                     1          00:00:01
'                    60          00:01:00
'                  3600          01:00:00
'                 86400        1.00:00:00
'             1801220.2       20.20:20:20.2000000

備註

value 參數會轉換成毫秒，它會轉換成刻度，而該刻度數則用來初始化新的 TimeSpan。因此，value 只會被視為精確到最接近的毫秒。請注意，由於 Double 數據類型的精確度遺失，因此可能會針對 MinValue 或 MaxValue範圍內的值產生 OverflowException，例如，在下列嘗試具現化 TimeSpan 物件時，這是 OverflowException的原因。

// The following throws an OverflowException at runtime
TimeSpan maxSpan = TimeSpan.FromSeconds(TimeSpan.MaxValue.TotalSeconds);

// The following throws an OverflowException at runtime
let maxSpan = TimeSpan.FromSeconds TimeSpan.MaxValue.TotalSeconds

' The following throws an OverflowException at runtime
Dim maxSpan As TimeSpan = TimeSpan.FromSeconds(TimeSpan.MaxValue.TotalSeconds)

另請參閱

適用於

FromSeconds(Int64)

將 TimeSpan 結構的新實例初始化為指定的秒數。

public:
 static TimeSpan FromSeconds(long seconds);

public static TimeSpan FromSeconds (long seconds);

static member FromSeconds : int64 -> TimeSpan

Public Shared Function FromSeconds (seconds As Long) As TimeSpan

參數

seconds: Int64

秒數。

傳回

TimeSpan

傳回代表指定秒數的 TimeSpan。

例外狀況

ArgumentOutOfRangeException

參數會指定小於 MinValue 或大於 MaxValue TimeSpan 值。

適用於

FromSeconds(Int64, Int64, Int64)

將 TimeSpan 結構的新實例初始化為指定的秒數、毫秒和微秒數。

public static TimeSpan FromSeconds (long seconds, long milliseconds = 0, long microseconds = 0);

static member FromSeconds : int64 * int64 * int64 -> TimeSpan

Public Shared Function FromSeconds (seconds As Long, Optional milliseconds As Long = 0, Optional microseconds As Long = 0) As TimeSpan

參數

seconds: Int64

秒數。

milliseconds: Int64

毫秒數。

microseconds: Int64

微秒數。

傳回

TimeSpan

傳回 TimeSpan，代表指定的秒數、毫秒數和微秒數。

例外狀況

ArgumentOutOfRangeException

參數會指定小於 MinValue 或大於 MaxValue TimeSpan 值。

適用於

共用方式為

TimeSpan.FromSeconds 方法

定義

多載

FromSeconds(Double)

參數

傳回

例外狀況

範例

備註

另請參閱

適用於

FromSeconds(Int64)

參數

傳回

例外狀況

適用於

FromSeconds(Int64, Int64, Int64)

參數

傳回

例外狀況

適用於

其他資源