Tuple<T1,T2,T3,T4>.Equals(Object) Metode

Definisi

Ruang nama:: System

Rakitan:: mscorlib.dll, System.Runtime.dll

Rakitan:: netstandard.dll, System.Runtime.dll

Rakitan:: System.Runtime.dll

Rakitan:: mscorlib.dll

Rakitan:: netstandard.dll

Sumber:: Tuple.cs

Sumber:: Tuple.cs

Sumber:: Tuple.cs

Sumber:: Tuple.cs

Sumber:: Tuple.cs

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.

Mengembalikan nilai yang menunjukkan apakah objek saat ini Tuple<T1,T2,T3,T4> sama dengan objek tertentu.

public:
 override bool Equals(System::Object ^ obj);

public override bool Equals(object obj);

public override bool Equals(object? obj);

override this.Equals : obj -> bool

Public Overrides Function Equals (obj As Object) As Boolean

Parameter

obj: Object

Objek untuk dibandingkan dengan instans ini.

Mengembalikan

Boolean

true jika instans saat ini sama dengan objek yang ditentukan; jika tidak, false.

Contoh

Contoh berikut mendefinisikan array Tuple<T1,T2,T3,T4> objek yang menyediakan data pada suhu pada tiga kali selama hari tertentu. Metode Equals(Object) ini dipanggil untuk membandingkan setiap Tuple<T1,T2,T3,T4> objek dengan setiap objek lainnya Tuple<T1,T2,T3,T4> . Output menggambarkan bahwa Equals(Object) metode hanya mengembalikan true ketika keempat komponen Tuple<T1,T2,T3,T4> objek memiliki nilai yang sama.

using System;

public class Class1
{
   public static void Main()
   {
      Tuple<DateTime, double, double, double>[] temperatures = 
            { Tuple.Create(new DateTime(2009, 1, 16), 3.0, 5.0, 4.0),
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 11.0), 
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 10.0),
              Tuple.Create(new DateTime(2009, 6, 1), 23.0, 28.0, 21.0),
              Tuple.Create(new DateTime(2009, 4, 22), 9.0, 14.0, 11.0),
              Tuple.Create(new DateTime(2009, 9, 6), 25.0, 30.0, 25.0) }; 
      // Compare each item with every other item for equality.
      for (int ctr = 0; ctr < temperatures.Length; ctr++)
      {
         var temperatureInfo = temperatures[ctr];
         for (int ctr2 = ctr + 1; ctr2 < temperatures.Length; ctr2++)
            Console.WriteLine("{0} = {1}: {2}", temperatureInfo, temperatures[ctr2], 
                                                temperatureInfo.Equals(temperatures[ctr2]));
         Console.WriteLine();
      }   
   }
}
// The example displays the following output:
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

open System

let temperatures = 
    [| Tuple.Create(DateTime(2009, 1, 16), 3.0, 5.0, 4.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 11.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 10.0)
       Tuple.Create(DateTime(2009, 6, 1), 23.0, 28.0, 21.0)
       Tuple.Create(DateTime(2009, 4, 22), 9.0, 14.0, 11.0)
       Tuple.Create(DateTime(2009, 9, 6), 25.0, 30.0, 25.0) |]

// Compare each item with every other item for equality.
for ctr = 0 to temperatures.Length - 1 do
    let temperatureInfo = temperatures[ctr]
    for ctr2 = ctr + 1 to temperatures.Length - 1 do
        printfn $"{temperatureInfo} = {temperatures[ctr2]}: {temperatureInfo.Equals temperatures[ctr2]}"
    printfn ""   
// The example displays the following output:
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
//    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
//    
//    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

Module Example
   Public Sub Main()
      Dim temperatures() = 
              { Tuple.Create(#1/16/2009#, 3, 5, 4), _
                Tuple.Create(#4/22/2009#, 9, 14, 11), _ 
                Tuple.Create(#4/22/2009#, 9, 14, 10), _
                Tuple.Create(#6/01/2009#, 23, 28, 21), _
                Tuple.Create(#4/22/2009#, 9, 14, 11), _
                Tuple.Create(#9/06/2009#, 25, 30, 25) } 
      ' Compare each item with every other item for equality.
      For ctr As Integer = 0 To temperatures.Length - 1
         Dim temperatureInfo = temperatures(ctr)
         For ctr2 As Integer = ctr + 1 To temperatures.Length - 1
            Console.WriteLine("{0} = {1}: {2}", temperatureInfo, temperatures(ctr2), 
                                                temperatureInfo.Equals(temperatures(ctr2)))
         Next  
         Console.WriteLine()                                               
      Next
   End Sub
End Module
' The example displays the following output:
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (1/16/2009 12:00:00 AM, 3, 5, 4) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 10): False
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (4/22/2009 12:00:00 AM, 9, 14, 11): True
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (6/1/2009 12:00:00 AM, 23, 28, 21): False
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (4/22/2009 12:00:00 AM, 9, 14, 10) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (6/1/2009 12:00:00 AM, 23, 28, 21) = (4/22/2009 12:00:00 AM, 9, 14, 11): False
'    (6/1/2009 12:00:00 AM, 23, 28, 21) = (9/6/2009 12:00:00 AM, 25, 30, 25): False
'    
'    (4/22/2009 12:00:00 AM, 9, 14, 11) = (9/6/2009 12:00:00 AM, 25, 30, 25): False

Keterangan

Parameter obj dianggap sama dengan instans saat ini dalam kondisi berikut:

Ini adalah Tuple<T1,T2,T3,T4> objek.
Empat komponennya memiliki jenis yang sama dengan instans saat ini.
Empat komponennya sama dengan yang ada di instans saat ini. Kesetaraan ditentukan oleh pembanding kesetaraan objek default untuk setiap komponen.

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