HijriCalendar.AddYears(DateTime, Int32) 方法

定義

命名空間:

System.Globalization

組件:

System.Runtime.dll

來源:

HijriCalendar.cs

傳回與指定 DateTime 相差指定年數的 DateTime。

public:
 override DateTime AddYears(DateTime time, int years);

public override DateTime AddYears (DateTime time, int years);

override this.AddYears : DateTime * int -> DateTime

Public Overrides Function AddYears (time As DateTime, years As Integer) As DateTime

參數

time

DateTime

要加入年份的 DateTime。

years

Int32

要新增的年數。

傳回

DateTime

DateTime，由將指定的年數加入指定的 DateTime 所產生。

例外狀況

ArgumentException

產生的 DateTime 在支援的範圍之外。

範例

下列程式代碼範例會根據回歷顯示 的數個 DateTime 元件值。

using namespace System;
using namespace System::Globalization;
void DisplayValues( Calendar^ myCal, DateTime myDT )
{
   Console::WriteLine( "   Era:        {0}", myCal->GetEra( myDT ) );
   Console::WriteLine( "   Year:       {0}", myCal->GetYear( myDT ) );
   Console::WriteLine( "   Month:      {0}", myCal->GetMonth( myDT ) );
   Console::WriteLine( "   DayOfYear:  {0}", myCal->GetDayOfYear( myDT ) );
   Console::WriteLine( "   DayOfMonth: {0}", myCal->GetDayOfMonth( myDT ) );
   Console::WriteLine( "   DayOfWeek:  {0}", myCal->GetDayOfWeek( myDT ) );
   Console::WriteLine();
}

int main()
{
   
   // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
   DateTime myDT = DateTime(2002,4,3,gcnew GregorianCalendar);
   
   // Creates an instance of the HijriCalendar.
   HijriCalendar^ myCal = gcnew HijriCalendar;
   
   // Displays the values of the DateTime.
   Console::WriteLine( "April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:" );
   DisplayValues( myCal, myDT );
   
   // Adds two years and ten months.
   myDT = myCal->AddYears( myDT, 2 );
   myDT = myCal->AddMonths( myDT, 10 );
   
   // Displays the values of the DateTime.
   Console::WriteLine( "After adding two years and ten months:" );
   DisplayValues( myCal, myDT );
}

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:
   Era:        1
   Year:       1423
   Month:      1
   DayOfYear:  21
   DayOfMonth: 21
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        1
   Year:       1425
   Month:      11
   DayOfYear:  316
   DayOfMonth: 21
   DayOfWeek:  Saturday

*/

using System;
using System.Globalization;

public class SamplesHijriCalendar  {

   public static void Main()  {

      // Sets a DateTime to April 3, 2002 of the Gregorian calendar.
      DateTime myDT = new DateTime( 2002, 4, 3, new GregorianCalendar() );

      // Creates an instance of the HijriCalendar.
      HijriCalendar myCal = new HijriCalendar();

      // Displays the values of the DateTime.
      Console.WriteLine( "April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:" );
      DisplayValues( myCal, myDT );

      // Adds two years and ten months.
      myDT = myCal.AddYears( myDT, 2 );
      myDT = myCal.AddMonths( myDT, 10 );

      // Displays the values of the DateTime.
      Console.WriteLine( "After adding two years and ten months:" );
      DisplayValues( myCal, myDT );
   }

   public static void DisplayValues( Calendar myCal, DateTime myDT )  {
      Console.WriteLine( "   Era:        {0}", myCal.GetEra( myDT ) );
      Console.WriteLine( "   Year:       {0}", myCal.GetYear( myDT ) );
      Console.WriteLine( "   Month:      {0}", myCal.GetMonth( myDT ) );
      Console.WriteLine( "   DayOfYear:  {0}", myCal.GetDayOfYear( myDT ) );
      Console.WriteLine( "   DayOfMonth: {0}", myCal.GetDayOfMonth( myDT ) );
      Console.WriteLine( "   DayOfWeek:  {0}", myCal.GetDayOfWeek( myDT ) );
      Console.WriteLine();
   }
}

/*
This code produces the following output.

April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:
   Era:        1
   Year:       1423
   Month:      1
   DayOfYear:  21
   DayOfMonth: 21
   DayOfWeek:  Wednesday

After adding two years and ten months:
   Era:        1
   Year:       1425
   Month:      11
   DayOfYear:  316
   DayOfMonth: 21
   DayOfWeek:  Saturday

*/

Imports System.Globalization


Public Class SamplesHijriCalendar   

   Public Shared Sub Main()

      ' Sets a DateTime to April 3, 2002 of the Gregorian calendar.
      Dim myDT As New DateTime(2002, 4, 3, New GregorianCalendar())

      ' Creates an instance of the HijriCalendar.
      Dim myCal As New HijriCalendar()

      ' Displays the values of the DateTime.
      Console.WriteLine("April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:")
      DisplayValues(myCal, myDT)

      ' Adds two years and ten months.
      myDT = myCal.AddYears(myDT, 2)
      myDT = myCal.AddMonths(myDT, 10)

      ' Displays the values of the DateTime.
      Console.WriteLine("After adding two years and ten months:")
      DisplayValues(myCal, myDT)

   End Sub

   Public Shared Sub DisplayValues(myCal As Calendar, myDT As DateTime)
      Console.WriteLine("   Era:        {0}", myCal.GetEra(myDT))
      Console.WriteLine("   Year:       {0}", myCal.GetYear(myDT))
      Console.WriteLine("   Month:      {0}", myCal.GetMonth(myDT))
      Console.WriteLine("   DayOfYear:  {0}", myCal.GetDayOfYear(myDT))
      Console.WriteLine("   DayOfMonth: {0}", myCal.GetDayOfMonth(myDT))
      Console.WriteLine("   DayOfWeek:  {0}", myCal.GetDayOfWeek(myDT))
      Console.WriteLine()
   End Sub

End Class


'This code produces the following output.
'
'April 3, 2002 of the Gregorian calendar equals the following in the Hijri calendar:
'   Era:        1
'   Year:       1423
'   Month:      1
'   DayOfYear:  21
'   DayOfMonth: 21
'   DayOfWeek:  Wednesday
'
'After adding two years and ten months:
'   Era:        1
'   Year:       1425
'   Month:      11
'   DayOfYear:  316
'   DayOfMonth: 21
'   DayOfWeek:  Saturday

備註

如果產生的日期不是結果年份結果月份的有效日期，則產生的 DateTime 日期部分會受到影響。 它會變更為結果年份結果月份的最後一個有效日。 結果 DateTime 的月份部分會維持與指定的 DateTime相同。 此實作僅支援目前的紀元。 因此， ArgumentException 如果產生的年份超出指定的 DateTime紀元，則會擲回 。 結果 DateTime 的當日時間部分會維持與指定的 DateTime相同。

例如，Zulhijjah 有 29 天，但閏年有 30 天除外。 如果指定的日期是閏年 Zulhijjah 的第 30 天，而 的值為 years 1，則產生的日期將會是下一年 Zulhijjah 的第 29 天。

如果 years 為負數，則產生的 DateTime 會早於指定的 DateTime。

傳 Kind 回 DateTime 值的 屬性一律等於 DateTimeKind.Unspecified。 您可以呼叫 DateTime.SpecifyKind 方法來保留 Kind 參數的 time 屬性，如下列範例所示。

returnTime = DateTime.SpecifyKind(cal.AddYears(time, years), time.Kind);

returnTime = DateTime.SpecifyKind(cal.AddYears(time, years), time.Kind)

另請參閱

• DateTime
• AddMonths(DateTime, Int32)
• AddWeeks(DateTime, Int32)
• AddDays(DateTime, Int32)
• AddHours(DateTime, Int32)
• AddMinutes(DateTime, Int32)
• AddSeconds(DateTime, Int32)
• AddMilliseconds(DateTime, Double)