TimeSpan.FromHours Metode
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Overload
FromHours(Double) |
Mengembalikan TimeSpan yang mewakili jumlah jam tertentu, di mana spesifikasi akurat hingga milidetik terdekat. |
FromHours(Int32) | |
FromHours(Int32, Int64, Int64, Int64, Int64) |
FromHours(Double)
- Sumber:
- TimeSpan.cs
- Sumber:
- TimeSpan.cs
- Sumber:
- TimeSpan.cs
Mengembalikan TimeSpan yang mewakili jumlah jam tertentu, di mana spesifikasi akurat hingga milidetik terdekat.
public:
static TimeSpan FromHours(double value);
public static TimeSpan FromHours (double value);
static member FromHours : double -> TimeSpan
Public Shared Function FromHours (value As Double) As TimeSpan
Parameter
- value
- Double
Beberapa jam akurat untuk milidetik terdekat.
Mengembalikan
Objek yang mewakili value
.
Pengecualian
value
kurang dari TimeSpan.MinValue atau lebih besar dari TimeSpan.MaxValue.
-atau-
value
adalah PositiveInfinity.
-atau-
value
adalah NegativeInfinity.
value
sama dengan NaN.
Contoh
Contoh berikut membuat beberapa TimeSpan objek menggunakan FromHours metode .
// Example of the TimeSpan::FromHours( double ) method.
using namespace System;
void GenTimeSpanFromHours( double hours )
{
// Create a TimeSpan object and TimeSpan string from
// a number of hours.
TimeSpan interval = TimeSpan::FromHours( hours );
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}", hours, timeInterval );
}
int main()
{
Console::WriteLine( "This example of TimeSpan::FromHours( double )\n"
"generates the following output.\n" );
Console::WriteLine( "{0,21}{1,18}", "FromHours", "TimeSpan" );
Console::WriteLine( "{0,21}{1,18}", "---------", "--------" );
GenTimeSpanFromHours( 0.0000002 );
GenTimeSpanFromHours( 0.0000003 );
GenTimeSpanFromHours( 0.0012345 );
GenTimeSpanFromHours( 12.3456789 );
GenTimeSpanFromHours( 123456.7898765 );
GenTimeSpanFromHours( 0.0002777 );
GenTimeSpanFromHours( 0.0166666 );
GenTimeSpanFromHours( 1 );
GenTimeSpanFromHours( 24 );
GenTimeSpanFromHours( 500.3389445 );
}
/*
This example of TimeSpan::FromHours( double )
generates the following output.
FromHours TimeSpan
--------- --------
2E-07 00:00:00.0010000
3E-07 00:00:00.0010000
0.0012345 00:00:04.4440000
12.3456789 12:20:44.4440000
123456.7898765 5144.00:47:23.5550000
0.0002777 00:00:01
0.0166666 00:01:00
1 01:00:00
24 1.00:00:00
500.3389445 20.20:20:20.2000000
*/
// Example of the TimeSpan.FromHours( double ) method.
using System;
class FromHoursDemo
{
static void GenTimeSpanFromHours( double hours )
{
// Create a TimeSpan object and TimeSpan string from
// a number of hours.
TimeSpan interval = TimeSpan.FromHours( hours );
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}", hours, timeInterval );
}
static void Main( )
{
Console.WriteLine(
"This example of TimeSpan.FromHours( double )\n" +
"generates the following output.\n" );
Console.WriteLine( "{0,21}{1,18}",
"FromHours", "TimeSpan" );
Console.WriteLine( "{0,21}{1,18}",
"---------", "--------" );
GenTimeSpanFromHours( 0.0000002 );
GenTimeSpanFromHours( 0.0000003 );
GenTimeSpanFromHours( 0.0012345 );
GenTimeSpanFromHours( 12.3456789 );
GenTimeSpanFromHours( 123456.7898765 );
GenTimeSpanFromHours( 0.0002777 );
GenTimeSpanFromHours( 0.0166666 );
GenTimeSpanFromHours( 1 );
GenTimeSpanFromHours( 24 );
GenTimeSpanFromHours( 500.3389445 );
}
}
/*
This example of TimeSpan.FromHours( double )
generates the following output.
FromHours TimeSpan
--------- --------
2E-07 00:00:00.0010000
3E-07 00:00:00.0010000
0.0012345 00:00:04.4440000
12.3456789 12:20:44.4440000
123456.7898765 5144.00:47:23.5550000
0.0002777 00:00:01
0.0166666 00:01:00
1 01:00:00
24 1.00:00:00
500.3389445 20.20:20:20.2000000
*/
// Example of the TimeSpan.FromHours( double ) method.
open System
let genTimeSpanFromHours hours =
// Create a TimeSpan object and TimeSpan string from
// a number of hours.
let interval = TimeSpan.FromHours hours
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 $"{hours,21}{timeInterval,26}"
printfn "This example of TimeSpan.FromHours( double )\ngenerates the following output.\n"
printfn "%21s%18s" "FromHours" "TimeSpan"
printfn "%21s%18s" "---------" "--------"
genTimeSpanFromHours 0.0000002
genTimeSpanFromHours 0.0000003
genTimeSpanFromHours 0.0012345
genTimeSpanFromHours 12.3456789
genTimeSpanFromHours 123456.7898765
genTimeSpanFromHours 0.0002777
genTimeSpanFromHours 0.0166666
genTimeSpanFromHours 1
genTimeSpanFromHours 24
genTimeSpanFromHours 500.3389445
(*
This example of TimeSpan.FromHours( double )
generates the following output.
FromHours TimeSpan
--------- --------
2E-07 00:00:00.0010000
3E-07 00:00:00.0010000
0.0012345 00:00:04.4440000
12.3456789 12:20:44.4440000
123456.7898765 5144.00:47:23.5550000
0.0002777 00:00:01
0.0166666 00:01:00
1 01:00:00
24 1.00:00:00
500.3389445 20.20:20:20.2000000
*)
' Example of the TimeSpan.FromHours( Double ) method.
Module FromHoursDemo
Sub GenTimeSpanFromHours( hours As Double )
' Create a TimeSpan object and TimeSpan string from
' a number of hours.
Dim interval As TimeSpan = _
TimeSpan.FromHours( hours )
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}", hours, timeInterval )
End Sub
Sub Main( )
Console.WriteLine( "This example of " & _
"TimeSpan.FromHours( Double )" & _
vbCrLf & "generates the following output." & vbCrLf )
Console.WriteLine( "{0,21}{1,18}", _
"FromHours", "TimeSpan" )
Console.WriteLine( "{0,21}{1,18}", _
"---------", "--------" )
GenTimeSpanFromHours( 0.0000002 )
GenTimeSpanFromHours( 0.0000003 )
GenTimeSpanFromHours( 0.0012345 )
GenTimeSpanFromHours( 12.3456789 )
GenTimeSpanFromHours( 123456.7898765 )
GenTimeSpanFromHours( 0.0002777 )
GenTimeSpanFromHours( 0.0166666 )
GenTimeSpanFromHours( 1 )
GenTimeSpanFromHours( 24 )
GenTimeSpanFromHours( 500.3389445 )
End Sub
End Module
' This example of TimeSpan.FromHours( Double )
' generates the following output.
'
' FromHours TimeSpan
' --------- --------
' 2E-07 00:00:00.0010000
' 3E-07 00:00:00.0010000
' 0.0012345 00:00:04.4440000
' 12.3456789 12:20:44.4440000
' 123456.7898765 5144.00:47:23.5550000
' 0.0002777 00:00:01
' 0.0166666 00:01:00
' 1 01:00:00
' 24 1.00:00:00
' 500.3389445 20.20:20:20.2000000
Keterangan
Parameter value
dikonversi menjadi milidetik, yang dikonversi menjadi tanda centang, dan jumlah kutu tersebut digunakan untuk menginisialisasi yang baru TimeSpan. Oleh karena itu, value
hanya akan dianggap akurat dengan milidetik terdekat. Perhatikan bahwa, karena hilangnya presisi Double jenis data, konversi ini dapat menghasilkan OverflowException untuk nilai yang mendekati tetapi masih dalam rentang baik MinValue atau MaxValue. Misalnya, ini menyebabkan OverflowException dalam upaya berikut untuk membuat instans TimeSpan objek.
// The following throws an OverflowException at runtime
TimeSpan maxSpan = TimeSpan.FromHours(TimeSpan.MaxValue.TotalHours);
// The following throws an OverflowException at runtime
let maxSpan = TimeSpan.FromHours TimeSpan.MaxValue.TotalHours
' The following throws an OverflowException at runtime
Dim maxSpan As TimeSpan = TimeSpan.FromHours(TimeSpan.MaxValue.TotalHours)
Lihat juga
- Double
- FromTicks(Int64)
- FromMilliseconds(Double)
- FromSeconds(Double)
- FromMinutes(Double)
- FromDays(Double)
Berlaku untuk
FromHours(Int32)
FromHours(Int32, Int64, Int64, Int64, Int64)
public static TimeSpan FromHours (int hours, long minutes = 0, long seconds = 0, long milliseconds = 0, long microseconds = 0);
static member FromHours : int * int64 * int64 * int64 * int64 -> TimeSpan
Public Shared Function FromHours (hours As Integer, Optional minutes As Long = 0, Optional seconds As Long = 0, Optional milliseconds As Long = 0, Optional microseconds As Long = 0) As TimeSpan
Parameter
- hours
- Int32
- minutes
- Int64
- seconds
- Int64
- milliseconds
- Int64
- microseconds
- Int64
Mengembalikan
Berlaku untuk
Saran dan Komentar
https://aka.ms/ContentUserFeedback.
Segera hadir: Sepanjang tahun 2024 kami akan menghentikan penggunaan GitHub Issues sebagai mekanisme umpan balik untuk konten dan menggantinya dengan sistem umpan balik baru. Untuk mengetahui informasi selengkapnya, lihat:Kirim dan lihat umpan balik untuk