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VB.NET DateTime构造函数代码示例

本文整理汇总了VB.NET中System.DateTime.DateTime构造函数的典型用法代码示例。如果您正苦于以下问题：VB.NET DateTime构造函数的具体用法？VB.NET DateTime怎么用？VB.NET DateTime使用的例子？那么恭喜您, 这里精选的构造函数代码示例或许可以为您提供帮助。您也可以进一步了解该构造函数所在类System.DateTime的用法示例。


在下文中一共展示了DateTime构造函数的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: Example

' 导入命名空间
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, persian)
      Console.WriteLine(date1.ToString())
      Console.WriteLine("{0}/{1}/{2}", persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1))
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      Dim dFormat As String = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy")
      current.DateTimeFormat.ShortDatePattern = dFormat
      Dim date2 As New Date(1431, 9, 9, hijri)
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", current, _
                        GetCalendarName(hijri), date2) 
      
      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      Console.WriteLine("{0} culture using the {1} calendar: {2:d}", _
                        CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
开发者ID:VB.NET开发者，项目名称:System，代码行数:46，代码来源:DateTime

输出：

Using the Persian Calendar:
8/18/2010 12:00:00 AM
5/27/1389

Using the Hijri Calendar:
ar-SY culture using the Hijri calendar: 09/09/1431
en-US culture using the Gregorian calendar: 8/18/2010

示例2: Example

' 导入命名空间
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 0, persian)
      Console.WriteLine(date1.ToString())
      Console.WriteLine("{0}/{1}/{2} {3}{6}{4:D2}{6}{5:D2}", persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      Dim dFormat As String = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy")
      current.DateTimeFormat.ShortDatePattern = dFormat
      Dim date2 As New Date(1431, 9, 9, 16, 32, 0, hijri)
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", current, _
                        GetCalendarName(hijri), date2) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      Console.WriteLine("{0} culture using the {1} calendar: {2:g}", _
                        CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
开发者ID:VB.NET开发者，项目名称:System，代码行数:50，代码来源:DateTime

输出：

Using the Persian Calendar:
8/18/2010 4:32:00 PM
5/27/1389 16:32:00

Using the Hijri Calendar:
ar-SY culture using the Hijri calendar: 09/09/1431 04:32 م
en-US culture using the Gregorian calendar: 8/18/2010 4:32 PM

示例3: Example

' 导入命名空间
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 18, 500, persian)
      Console.WriteLine(date1.ToString("M/dd/yyyy h:mm:ss.fff tt"))
      Console.WriteLine("{0}/{1}/{2} {3}{7}{4:D2}{7}{5:D2}.{6:G3}", _
                                       persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       persian.GetMilliseconds(date1), _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define strings for use in composite formatting.
      Dim dFormat As String 
      Dim fmtString As String 
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      dFormat = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}"
      Dim date2 As New Date(1431, 9, 9, 16, 32, 18, 500, hijri)
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), date2) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "}"
      Console.WriteLine(fmtString, CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
开发者ID:VB.NET开发者，项目名称:System，代码行数:55，代码来源:DateTime

输出：

Using the Persian Calendar:
8/18/2010 4:32:18.500 PM
5/27/1389 16:32:18.500

Using the Hijri Calendar:
ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500
en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500

示例4: Example

' 导入命名空间
Imports System.Globalization
Imports System.Text.RegularExpressions
Imports System.Threading

Module Example
   Public Sub Main()
      Console.WriteLine("Using the Persian Calendar:")
      Dim persian As New PersianCalendar()
      Dim date1 As New Date(1389, 5, 27, 16, 32, 18, 500, _
                            persian, DateTimeKind.Local)
      Console.WriteLine("{0:M/dd/yyyy h:mm:ss.fff tt} {1}", date1, date1.Kind)
      Console.WriteLine("{0}/{1}/{2} {3}{8}{4:D2}{8}{5:D2}.{6:G3} {7}", _
                                       persian.GetMonth(date1), _
                                       persian.GetDayOfMonth(date1), _
                                       persian.GetYear(date1), _
                                       persian.GetHour(date1), _
                                       persian.GetMinute(date1), _
                                       persian.GetSecond(date1), _
                                       persian.GetMilliseconds(date1), _
                                       date1.Kind, _
                                       DateTimeFormatInfo.CurrentInfo.TimeSeparator)
      Console.WriteLine()
      
      Console.WriteLine("Using the Hijri Calendar:")
      ' Get current culture so it can later be restored.
      Dim dftCulture As CultureInfo = Thread.CurrentThread.CurrentCulture
      
      ' Define strings for use in composite formatting.
      Dim dFormat As String 
      Dim fmtString As String 
      ' Define Hijri calendar.
      Dim hijri As New HijriCalendar()
      ' Make ar-SY the current culture and Hijri the current calendar.
      Thread.CurrentThread.CurrentCulture = New CultureInfo("ar-SY")
      Dim current As CultureInfo = CultureInfo.CurrentCulture
      current.DateTimeFormat.Calendar = hijri
      dFormat = current.DateTimeFormat.ShortDatePattern
      ' Ensure year is displayed as four digits.
      dFormat = Regex.Replace(dFormat, "/yy$", "/yyyy") + " H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}"
      Dim date2 As New Date(1431, 9, 9, 16, 32, 18, 500, _
                            hijri, DateTimeKind.Local)
      Console.WriteLine(fmtString, current, GetCalendarName(hijri), _
                        date2, date2.Kind) 

      ' Restore previous culture.
      Thread.CurrentThread.CurrentCulture = dftCulture
      dFormat = DateTimeFormatInfo.CurrentInfo.ShortDatePattern +" H:mm:ss.fff"
      fmtString = "{0} culture using the {1} calendar: {2:" + dFormat + "} {3}"
      Console.WriteLine(fmtString, CultureInfo.CurrentCulture, _
                        GetCalendarName(CultureInfo.CurrentCulture.Calendar), _
                        date2, date2.Kind) 
   End Sub
   
   Private Function GetCalendarName(cal As Calendar) As String
      Return Regex.Match(cal.ToString(), "\.(\w+)Calendar").Groups(1).Value
   End Function
End Module
开发者ID:VB.NET开发者，项目名称:System，代码行数:59，代码来源:DateTime

输出：

Using the Persian Calendar:
8/18/2010 4:32:18.500 PM
5/27/1389 16:32:18.500

Using the Hijri Calendar:
ar-SY culture using the Hijri calendar: 09/09/1431 16:32:18.500
en-US culture using the Gregorian calendar: 8/18/2010 16:32:18.500


注：本文中的System.DateTime.DateTime构造函数示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。