UInt64.Equals Methode

Definition

Namespace:: System

Assemblys:: mscorlib.dll, System.Runtime.dll

Assemblys:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Wichtig

Einige Informationen beziehen sich auf Vorabversionen, die vor dem Release ggf. grundlegend überarbeitet werden. Microsoft übernimmt hinsichtlich der hier bereitgestellten Informationen keine Gewährleistungen, seien sie ausdrücklich oder konkludent.

Gibt einen Wert zurück, der angibt, ob diese Instanz einem angegebenen Objekt oder UInt64.

Überlädt

Name	Beschreibung
Equals(Object)	Gibt einen Wert zurück, der angibt, ob diese Instanz einem angegebenen Objekt entspricht.
Equals(UInt64)	Gibt einen Wert zurück, der angibt, ob diese Instanz einem angegebenen UInt64 Wert entspricht.

Equals(Object)

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Gibt einen Wert zurück, der angibt, ob diese Instanz einem angegebenen Objekt entspricht.

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

Ein Objekt, das mit dieser Instanz verglichen werden soll.

Gibt zurück

Boolean

true if obj is an instance of UInt64 and equals the value of this instance; otherwise, false.

Beispiele

Im folgenden Beispiel wird die Equals Methode veranschaulicht.

using System;

public class Example
{
   public static void Main()
   {
      object[] values = { (short) 10, (short) 20, 10, 20,
                          10L, 20L, 10D, 20D, (ushort) 10,
                          (ushort) 20, 10U, 20U,
                          10ul, 20ul };
      UInt64 baseValue = 20;
      String baseType = baseValue.GetType().Name;
      
      foreach (var value in values)
         Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                           baseValue, baseType,
                           value, value.GetType().Name,
                           baseValue.Equals(value));
   }
}
// The example displays the following output:
//       20 (UInt64) = 10 (Int16): False
//       20 (UInt64) = 20 (Int16): False
//       20 (UInt64) = 10 (Int32): False
//       20 (UInt64) = 20 (Int32): False
//       20 (UInt64) = 10 (Int64): False
//       20 (UInt64) = 20 (Int64): False
//       20 (UInt64) = 10 (Double): False
//       20 (UInt64) = 20 (Double): False
//       20 (UInt64) = 10 (UInt16): False
//       20 (UInt64) = 20 (UInt16): False
//       20 (UInt64) = 10 (UInt32): False
//       20 (UInt64) = 20 (UInt32): False
//       20 (UInt64) = 10 (UInt64): False
//       20 (UInt64) = 20 (UInt64): True

let values: obj[] = 
    [| 10s; 20s; 10; 20
       10L; 20L; 10.; 20.; 10us
       20us; 10u; 20u
       10uL; 20uL |]
let baseValue = 20uL
let baseType = baseValue.GetType().Name

for value in values do
    printfn $"{baseValue} ({baseType}) = {value} ({value.GetType().Name}): {value.GetType().Name}"
// The example displays the following output:
//       20 (UInt64) = 10 (Int16): False
//       20 (UInt64) = 20 (Int16): False
//       20 (UInt64) = 10 (Int32): False
//       20 (UInt64) = 20 (Int32): False
//       20 (UInt64) = 10 (Int64): False
//       20 (UInt64) = 20 (Int64): False
//       20 (UInt64) = 10 (Double): False
//       20 (UInt64) = 20 (Double): False
//       20 (UInt64) = 10 (UInt16): False
//       20 (UInt64) = 20 (UInt16): False
//       20 (UInt64) = 10 (UInt32): False
//       20 (UInt64) = 20 (UInt32): False
//       20 (UInt64) = 10 (UInt64): False
//       20 (UInt64) = 20 (UInt64): True

Module Example
   Public Sub Main()
      Dim values() As Object = { 10S, 20S, 10I, 20I, 10L, 20L,
                                 10R, 20R, 10US, 20US, 10UI, 20UI,
                                 10UL, 20UL }
      Dim baseValue As UInt64 = 20
      Dim baseType As String = baseValue.GetType().Name
      
      For Each value In values
         Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                           baseValue, baseType,
                           value, value.GetType().Name,
                           baseValue.Equals(value))
      Next
   End Sub
End Module
' The example displays the following output:
'       20 (UInt64) = 10 (Int16): False
'       20 (UInt64) = 20 (Int16): False
'       20 (UInt64) = 10 (Int32): False
'       20 (UInt64) = 20 (Int32): False
'       20 (UInt64) = 10 (Int64): False
'       20 (UInt64) = 20 (Int64): False
'       20 (UInt64) = 10 (Double): False
'       20 (UInt64) = 20 (Double): False
'       20 (UInt64) = 10 (UInt16): False
'       20 (UInt64) = 20 (UInt16): False
'       20 (UInt64) = 10 (UInt32): False
'       20 (UInt64) = 20 (UInt32): False
'       20 (UInt64) = 10 (UInt64): False
'       20 (UInt64) = 20 (UInt64): True

Hinweise für Aufrufer

Die Compilerüberladungsauflösung kann einen offensichtlichen Unterschied im Verhalten der beiden Equals(UInt64) Methodenüberladungen ausmachen. Wenn eine implizite Konvertierung zwischen dem obj Argument und einem UInt64 definiert ist und das Argument nicht als Typ Objecteingegeben wird, führen Compiler eine implizite Konvertierung durch und rufen die Equals(UInt64) Methode auf. Andernfalls rufen sie die Equals(Object) Methode auf, die immer zurückgegeben wird false , wenn das obj Argument kein UInt64 Wert ist. Das folgende Beispiel veranschaulicht den Unterschied im Verhalten zwischen den beiden Methodenüberladungen. Im Fall von , und Werten gibt der erste Vergleich zurückByte, da der Compiler automatisch eine Erweiterungskonvertierung durchführt und die UInt16 Methode aufruft, während der zweite Vergleich zurückgegeben wirdUInt32, da der Compiler die true Methode aufruft.Equals(UInt64)falseEquals(Object)

using System;

public class Example
{
   static ulong value = 112;
   
   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      int int1 = 112;
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1));
      TestObjectForEquality(int1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      uint uint1 = 112;
      Console.WriteLine("value = uint1: {0,18}", value.Equals(uint1));
      TestObjectForEquality(uint1);

      decimal dec1 = 112m;
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1));
      TestObjectForEquality(dec1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:             True
//       112 (UInt64) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt64) = 112 (Int16): False
//
//       value = int1:               False
//       112 (UInt64) = 112 (Int32): False
//
//       value = sbyte1:             False
//       112 (UInt64) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt64) = 112 (UInt16): False
//
//       value = uint1:               True
//       112 (UInt64) = 112 (UInt32): False
//
//       value = dec1:                 False
//       112 (UInt64) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt64) = 112 (Double): False

let value = 112uL

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1= 112uy
printfn $"value = byte1: {value.Equals byte1,16}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let int1 = 112
printfn $"value = int1: {value.Equals int1,19}"
testObjectForEquality int1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,16}"
testObjectForEquality ushort1

let uint1 = 112u
printfn $"value = uint1: {value.Equals uint1,18}"
testObjectForEquality uint1

let dec1 = 112m
printfn $"value = dec1: {value.Equals dec1,21}"
testObjectForEquality dec1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,20}"
testObjectForEquality dbl1

// The example displays the following output:
//       value = byte1:             True
//       112 (UInt64) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt64) = 112 (Int16): False
//
//       value = int1:               False
//       112 (UInt64) = 112 (Int32): False
//
//       value = sbyte1:             False
//       112 (UInt64) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt64) = 112 (UInt16): False
//
//       value = uint1:               True
//       112 (UInt64) = 112 (UInt32): False
//
//       value = dec1:                 False
//       112 (UInt64) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt64) = 112 (Double): False

Module Example
   Dim value As UInt64 = 112
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim int1 As Integer = 112
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1))
      TestObjectForEquality(int1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim uint1 As UInteger = 112
      Console.WriteLine("value = uint1: {0,18}", value.Equals(uint1))
      TestObjectForEquality(uint1)

      Dim dec1 As Decimal = 112d
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1))
      TestObjectForEquality(dec1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:             True
'       112 (UInt64) = 112 (Byte): False
'
'       value = short1:             False
'       112 (UInt64) = 112 (Int16): False
'
'       value = int1:               False
'       112 (UInt64) = 112 (Int32): False
'
'       value = sbyte1:             False
'       112 (UInt64) = 112 (SByte): False
'
'       value = ushort1:             True
'       112 (UInt64) = 112 (UInt16): False
'
'       value = uint1:               True
'       112 (UInt64) = 112 (UInt32): False
'
'       value = dec1:                 False
'       112 (UInt64) = 112 (Decimal): False
'
'       value = dbl1:                False
'       112 (UInt64) = 112 (Double): False

Weitere Informationen

CompareTo(Object)

Gilt für:

Equals(UInt64)

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Quelle:: UInt64.cs

Gibt einen Wert zurück, der angibt, ob diese Instanz einem angegebenen UInt64 Wert entspricht.

public:
 virtual bool Equals(System::UInt64 obj);

public bool Equals(ulong obj);

override this.Equals : uint64 -> bool

Public Function Equals (obj As ULong) As Boolean

Parameter

obj: UInt64

Ein UInt64 Wert, der mit dieser Instanz verglichen werden soll.

Gibt zurück

Boolean

true if obj has the same value as this instance; otherwise, false.

Implementiert

Equals(T)

Beispiele

Im folgenden Beispiel wird die Equals Methode veranschaulicht.

using System;

class Example
{
     public static void Main()
     {
         UInt64 value1 = 50;
         UInt64 value2 = 50;

         // Display the values.
        Console.WriteLine("value1:   Type: {0}   Value: {1}",
                          value1.GetType().Name, value1);
        Console.WriteLine("value2:   Type: {0}   Value: {1}",
                        value2.GetType().Name, value2);

        // Compare the two values.
        Console.WriteLine("value1 and value2 are equal: {0}",
                          value1.Equals(value2));
     }
}
// The example displays the following output:
//       value1:   Type: UInt64   Value: 50
//       value2:   Type: UInt64   Value: 50
//       value1 and value2 are equal: True

let value1 = 50uL
let value2 = 50uL

// Display the values.
printfn $"value1:   Type: {value1.GetType().Name}   Value: {value1}"
printfn $"value2:   Type: {value2.GetType().Name}   Value: {value2}"

// Compare the two values.
printfn $"value1 and value2 are equal: {value1.Equals value2}"
// The example displays the following output:
//       value1:   Type: UInt64   Value: 50
//       value2:   Type: UInt64   Value: 50
//       value1 and value2 are equal: True

Class Example
   Public Shared Sub Main()
      Dim value1 As UInt64 = 50
      Dim value2 As UInt64 = 50
      
      'Display the values.
      Console.WriteLine("value1:   Type: {0}   Value: {1}",
                        value1.GetType().Name, value1)
      Console.WriteLine("value2:   Type: {0}   Value: {1}",
                        value2.GetType().Name, value2)

      ' Compare the two values.
      Console.WriteLine("value1 and value2 are equal: {0}",
                        value1.Equals(value2))
   End Sub
End Class 
' The example displays the following output:
'       value1:   Type: UInt64   Value: 50
'       value2:   Type: UInt64   Value: 50
'       value1 and value2 are equal: True

Hinweise

Diese Methode implementiert die System.IEquatable<T> Schnittstelle und führt etwas besser aus, als Equals weil der Parameter nicht in ein Objekt konvertiert obj werden muss.

Hinweise für Aufrufer

using System;

public class Example
{
   static ulong value = 112;
   
   public static void Main()
   {
      byte byte1= 112;
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1));
      TestObjectForEquality(byte1);

      short short1 = 112;
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1));
      TestObjectForEquality(short1);

      int int1 = 112;
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1));
      TestObjectForEquality(int1);

      sbyte sbyte1 = 112;
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1));
      TestObjectForEquality(sbyte1);

      ushort ushort1 = 112;
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1));
      TestObjectForEquality(ushort1);

      uint uint1 = 112;
      Console.WriteLine("value = uint1: {0,18}", value.Equals(uint1));
      TestObjectForEquality(uint1);

      decimal dec1 = 112m;
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1));
      TestObjectForEquality(dec1);

      double dbl1 = 112;
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1));
      TestObjectForEquality(dbl1);
   }

   private static void TestObjectForEquality(Object obj)
   {
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}\n",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj));
   }
}
// The example displays the following output:
//       value = byte1:             True
//       112 (UInt64) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt64) = 112 (Int16): False
//
//       value = int1:               False
//       112 (UInt64) = 112 (Int32): False
//
//       value = sbyte1:             False
//       112 (UInt64) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt64) = 112 (UInt16): False
//
//       value = uint1:               True
//       112 (UInt64) = 112 (UInt32): False
//
//       value = dec1:                 False
//       112 (UInt64) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt64) = 112 (Double): False

let value = 112uL

let testObjectForEquality (obj: obj) =
    printfn $"{value} ({value.GetType().Name}) = {obj} ({obj.GetType().Name}): {value.Equals obj}\n"

let byte1= 112uy
printfn $"value = byte1: {value.Equals byte1,16}"
testObjectForEquality byte1

let short1 = 112s
printfn $"value = short1: {value.Equals short1,17}"
testObjectForEquality short1

let int1 = 112
printfn $"value = int1: {value.Equals int1,19}"
testObjectForEquality int1

let sbyte1 = 112y
printfn $"value = sbyte1: {value.Equals sbyte1,17}"
testObjectForEquality sbyte1

let ushort1 = 112us
printfn $"value = ushort1: {value.Equals ushort1,16}"
testObjectForEquality ushort1

let uint1 = 112u
printfn $"value = uint1: {value.Equals uint1,18}"
testObjectForEquality uint1

let dec1 = 112m
printfn $"value = dec1: {value.Equals dec1,21}"
testObjectForEquality dec1

let dbl1 = 112.
printfn $"value = dbl1: {value.Equals dbl1,20}"
testObjectForEquality dbl1

// The example displays the following output:
//       value = byte1:             True
//       112 (UInt64) = 112 (Byte): False
//
//       value = short1:             False
//       112 (UInt64) = 112 (Int16): False
//
//       value = int1:               False
//       112 (UInt64) = 112 (Int32): False
//
//       value = sbyte1:             False
//       112 (UInt64) = 112 (SByte): False
//
//       value = ushort1:             True
//       112 (UInt64) = 112 (UInt16): False
//
//       value = uint1:               True
//       112 (UInt64) = 112 (UInt32): False
//
//       value = dec1:                 False
//       112 (UInt64) = 112 (Decimal): False
//
//       value = dbl1:                False
//       112 (UInt64) = 112 (Double): False

Module Example
   Dim value As UInt64 = 112
   
   Public Sub Main()
      Dim byte1 As Byte = 112
      Console.WriteLine("value = byte1: {0,16}", value.Equals(byte1))
      TestObjectForEquality(byte1)
      
      Dim short1 As Short = 112
      Console.WriteLine("value = short1: {0,17}", value.Equals(short1))
      TestObjectForEquality(short1)

      Dim int1 As Integer = 112
      Console.WriteLine("value = int1: {0,19}", value.Equals(int1))
      TestObjectForEquality(int1)

      Dim sbyte1 As SByte = 112
      Console.WriteLine("value = sbyte1: {0,17}", value.Equals(sbyte1))
      TestObjectForEquality(sbyte1)
      
      Dim ushort1 As UShort = 112
      Console.WriteLine("value = ushort1: {0,16}", value.Equals(ushort1))
      TestObjectForEquality(ushort1)

      Dim uint1 As UInteger = 112
      Console.WriteLine("value = uint1: {0,18}", value.Equals(uint1))
      TestObjectForEquality(uint1)

      Dim dec1 As Decimal = 112d
      Console.WriteLine("value = dec1: {0,21}", value.Equals(dec1))
      TestObjectForEquality(dec1)

      Dim dbl1 As Double = 112
      Console.WriteLine("value = dbl1: {0,20}", value.Equals(dbl1))
      TestObjectForEquality(dbl1)
   End Sub
   
   Private Sub TestObjectForEquality(obj As Object)
      Console.WriteLine("{0} ({1}) = {2} ({3}): {4}",
                        value, value.GetType().Name,
                        obj, obj.GetType().Name,
                        value.Equals(obj))
      Console.WriteLine()
   End Sub
End Module
' The example displays the following output:
'       value = byte1:             True
'       112 (UInt64) = 112 (Byte): False
'
'       value = short1:             False
'       112 (UInt64) = 112 (Int16): False
'
'       value = int1:               False
'       112 (UInt64) = 112 (Int32): False
'
'       value = sbyte1:             False
'       112 (UInt64) = 112 (SByte): False
'
'       value = ushort1:             True
'       112 (UInt64) = 112 (UInt16): False
'
'       value = uint1:               True
'       112 (UInt64) = 112 (UInt32): False
'
'       value = dec1:                 False
'       112 (UInt64) = 112 (Decimal): False
'
'       value = dbl1:                False
'       112 (UInt64) = 112 (Double): False

Gilt für:

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