共用方式為

UTF32Encoding.Equals(Object) 方法

  • 參考

定義

命名空間:
System.Text
組件:
mscorlib.dll, System.Text.Encoding.Extensions.dll
組件:
System.Text.Encoding.Extensions.dll
組件:
mscorlib.dll
組件:
netstandard.dll
來源:
UTF32Encoding.cs
來源:
UTF32Encoding.cs
來源:
UTF32Encoding.cs

判斷指定的 Object 是否等於目前的 UTF32Encoding 物件。

public:
 override bool Equals(System::Object ^ value);
public override bool Equals (object value);
public override bool Equals (object? value);
override this.Equals : obj -> bool
Public Overrides Function Equals (value As Object) As Boolean

參數

value
Object

要與目前物件比較的 Object。

傳回

Boolean

如果 value 是 UTF32Encoding 的執行個體，並且等於目前的物件，則為 true；否則為 false。

範例

下列範例會 UTF32Encoding 使用不同的參數值建立 物件，然後檢查它們是否相等。

using namespace System;
using namespace System::Text;
void CompareEncodings( UTF32Encoding ^ a, String^ name );
int main()
{
   
   // Create different instances of UTF32Encoding.
   UTF32Encoding ^ u32 = gcnew UTF32Encoding;
   UTF32Encoding ^ u32tt = gcnew UTF32Encoding( true,true );
   UTF32Encoding ^ u32tf = gcnew UTF32Encoding( true,false );
   UTF32Encoding ^ u32ft = gcnew UTF32Encoding( false,true );
   UTF32Encoding ^ u32ff = gcnew UTF32Encoding( false,false );
   
   // Compare these instances with instances created using the ctor with three parameters.
   CompareEncodings( u32, "u32  " );
   CompareEncodings( u32tt, "u32tt" );
   CompareEncodings( u32tf, "u32tf" );
   CompareEncodings( u32ft, "u32ft" );
   CompareEncodings( u32ff, "u32ff" );
}

void CompareEncodings( UTF32Encoding ^ a, String^ name )
{
   
   // Create different instances of UTF32Encoding using the ctor with three parameters.
   UTF32Encoding ^ u32ttt = gcnew UTF32Encoding( true,true,true );
   UTF32Encoding ^ u32ttf = gcnew UTF32Encoding( true,true,false );
   UTF32Encoding ^ u32tft = gcnew UTF32Encoding( true,false,true );
   UTF32Encoding ^ u32tff = gcnew UTF32Encoding( true,false,false );
   UTF32Encoding ^ u32ftt = gcnew UTF32Encoding( false,true,true );
   UTF32Encoding ^ u32ftf = gcnew UTF32Encoding( false,true,false );
   UTF32Encoding ^ u32fft = gcnew UTF32Encoding( false,false,true );
   UTF32Encoding ^ u32fff = gcnew UTF32Encoding( false,false,false );
   
   // Compare the specified instance with each of the instances that were just created.
   Console::WriteLine( "{0} and u32ttt : {1}", name, a->Equals( u32ttt ) );
   Console::WriteLine( "{0} and u32ttf : {1}", name, a->Equals( u32ttf ) );
   Console::WriteLine( "{0} and u32tft : {1}", name, a->Equals( u32tft ) );
   Console::WriteLine( "{0} and u32tff : {1}", name, a->Equals( u32tff ) );
   Console::WriteLine( "{0} and u32ftt : {1}", name, a->Equals( u32ftt ) );
   Console::WriteLine( "{0} and u32ftf : {1}", name, a->Equals( u32ftf ) );
   Console::WriteLine( "{0} and u32fft : {1}", name, a->Equals( u32fft ) );
   Console::WriteLine( "{0} and u32fff : {1}", name, a->Equals( u32fff ) );
}

/* 
This code produces the following output.

u32   vs u32ttt : False
u32   vs u32ttf : False
u32   vs u32tft : False
u32   vs u32tff : False
u32   vs u32ftt : False
u32   vs u32ftf : False
u32   vs u32fft : False
u32   vs u32fff : True
u32tt vs u32ttt : False
u32tt vs u32ttf : True
u32tt vs u32tft : False
u32tt vs u32tff : False
u32tt vs u32ftt : False
u32tt vs u32ftf : False
u32tt vs u32fft : False
u32tt vs u32fff : False
u32tf vs u32ttt : False
u32tf vs u32ttf : False
u32tf vs u32tft : False
u32tf vs u32tff : True
u32tf vs u32ftt : False
u32tf vs u32ftf : False
u32tf vs u32fft : False
u32tf vs u32fff : False
u32ft vs u32ttt : False
u32ft vs u32ttf : False
u32ft vs u32tft : False
u32ft vs u32tff : False
u32ft vs u32ftt : False
u32ft vs u32ftf : True
u32ft vs u32fft : False
u32ft vs u32fff : False
u32ff vs u32ttt : False
u32ff vs u32ttf : False
u32ff vs u32tft : False
u32ff vs u32tff : False
u32ff vs u32ftt : False
u32ff vs u32ftf : False
u32ff vs u32fft : False
u32ff vs u32fff : True

*/

using System;
using System.Text;

public class SamplesUTF32Encoding  {

   public static void Main()  {

      // Create different instances of UTF32Encoding.
      UTF32Encoding u32   = new UTF32Encoding();
      UTF32Encoding u32tt = new UTF32Encoding( true, true );
      UTF32Encoding u32tf = new UTF32Encoding( true, false );
      UTF32Encoding u32ft = new UTF32Encoding( false, true );
      UTF32Encoding u32ff = new UTF32Encoding( false, false );

      // Compare these instances with instances created using the ctor with three parameters.
      CompareEncodings( u32,   "u32  " );
      CompareEncodings( u32tt, "u32tt" );
      CompareEncodings( u32tf, "u32tf" );
      CompareEncodings( u32ft, "u32ft" );
      CompareEncodings( u32ff, "u32ff" );
   }

   public static void CompareEncodings( UTF32Encoding a, String name )  {

      // Create different instances of UTF32Encoding using the ctor with three parameters.
      UTF32Encoding u32ttt = new UTF32Encoding( true, true, true );
      UTF32Encoding u32ttf = new UTF32Encoding( true, true, false );
      UTF32Encoding u32tft = new UTF32Encoding( true, false, true );
      UTF32Encoding u32tff = new UTF32Encoding( true, false, false );
      UTF32Encoding u32ftt = new UTF32Encoding( false, true, true );
      UTF32Encoding u32ftf = new UTF32Encoding( false, true, false );
      UTF32Encoding u32fft = new UTF32Encoding( false, false, true );
      UTF32Encoding u32fff = new UTF32Encoding( false, false, false );

      // Compare the specified instance with each of the instances that were just created.
      Console.WriteLine( "{0} and u32ttt : {1}", name, a.Equals( u32ttt ) );
      Console.WriteLine( "{0} and u32ttf : {1}", name, a.Equals( u32ttf ) );
      Console.WriteLine( "{0} and u32tft : {1}", name, a.Equals( u32tft ) );
      Console.WriteLine( "{0} and u32tff : {1}", name, a.Equals( u32tff ) );
      Console.WriteLine( "{0} and u32ftt : {1}", name, a.Equals( u32ftt ) );
      Console.WriteLine( "{0} and u32ftf : {1}", name, a.Equals( u32ftf ) );
      Console.WriteLine( "{0} and u32fft : {1}", name, a.Equals( u32fft ) );
      Console.WriteLine( "{0} and u32fff : {1}", name, a.Equals( u32fff ) );
   }
}


/* 
This code produces the following output.

u32   vs u32ttt : False
u32   vs u32ttf : False
u32   vs u32tft : False
u32   vs u32tff : False
u32   vs u32ftt : False
u32   vs u32ftf : False
u32   vs u32fft : False
u32   vs u32fff : True
u32tt vs u32ttt : False
u32tt vs u32ttf : True
u32tt vs u32tft : False
u32tt vs u32tff : False
u32tt vs u32ftt : False
u32tt vs u32ftf : False
u32tt vs u32fft : False
u32tt vs u32fff : False
u32tf vs u32ttt : False
u32tf vs u32ttf : False
u32tf vs u32tft : False
u32tf vs u32tff : True
u32tf vs u32ftt : False
u32tf vs u32ftf : False
u32tf vs u32fft : False
u32tf vs u32fff : False
u32ft vs u32ttt : False
u32ft vs u32ttf : False
u32ft vs u32tft : False
u32ft vs u32tff : False
u32ft vs u32ftt : False
u32ft vs u32ftf : True
u32ft vs u32fft : False
u32ft vs u32fff : False
u32ff vs u32ttt : False
u32ff vs u32ttf : False
u32ff vs u32tft : False
u32ff vs u32tff : False
u32ff vs u32ftt : False
u32ff vs u32ftf : False
u32ff vs u32fft : False
u32ff vs u32fff : True

*/

Imports System.Text

Public Class SamplesUTF32Encoding   

   Public Shared Sub Main()

      ' Create different instances of UTF32Encoding.
      Dim u32 As New UTF32Encoding()
      Dim u32tt As New UTF32Encoding(True, True)
      Dim u32tf As New UTF32Encoding(True, False)
      Dim u32ft As New UTF32Encoding(False, True)
      Dim u32ff As New UTF32Encoding(False, False)

      ' Compare these instances with instances created using the ctor with three parameters.
      CompareEncodings(u32, "u32  ")
      CompareEncodings(u32tt, "u32tt")
      CompareEncodings(u32tf, "u32tf")
      CompareEncodings(u32ft, "u32ft")
      CompareEncodings(u32ff, "u32ff")

   End Sub


   Public Shared Sub CompareEncodings(a As UTF32Encoding, name As String)

      ' Create different instances of UTF32Encoding using the ctor with three parameters.
      Dim u32ttt As New UTF32Encoding(True, True, True)
      Dim u32ttf As New UTF32Encoding(True, True, False)
      Dim u32tft As New UTF32Encoding(True, False, True)
      Dim u32tff As New UTF32Encoding(True, False, False)
      Dim u32ftt As New UTF32Encoding(False, True, True)
      Dim u32ftf As New UTF32Encoding(False, True, False)
      Dim u32fft As New UTF32Encoding(False, False, True)
      Dim u32fff As New UTF32Encoding(False, False, False)

      ' Compare the specified instance with each of the instances that were just created.
      Console.WriteLine("{0} and u32ttt : {1}", name, a.Equals(u32ttt))
      Console.WriteLine("{0} and u32ttf : {1}", name, a.Equals(u32ttf))
      Console.WriteLine("{0} and u32tft : {1}", name, a.Equals(u32tft))
      Console.WriteLine("{0} and u32tff : {1}", name, a.Equals(u32tff))
      Console.WriteLine("{0} and u32ftt : {1}", name, a.Equals(u32ftt))
      Console.WriteLine("{0} and u32ftf : {1}", name, a.Equals(u32ftf))
      Console.WriteLine("{0} and u32fft : {1}", name, a.Equals(u32fft))
      Console.WriteLine("{0} and u32fff : {1}", name, a.Equals(u32fff))

   End Sub

End Class


'This code produces the following output.
'
'u32   vs u32ttt : False
'u32   vs u32ttf : False
'u32   vs u32tft : False
'u32   vs u32tff : False
'u32   vs u32ftt : False
'u32   vs u32ftf : False
'u32   vs u32fft : False
'u32   vs u32fff : True
'u32tt vs u32ttt : False
'u32tt vs u32ttf : True
'u32tt vs u32tft : False
'u32tt vs u32tff : False
'u32tt vs u32ftt : False
'u32tt vs u32ftf : False
'u32tt vs u32fft : False
'u32tt vs u32fff : False
'u32tf vs u32ttt : False
'u32tf vs u32ttf : False
'u32tf vs u32tft : False
'u32tf vs u32tff : True
'u32tf vs u32ftt : False
'u32tf vs u32ftf : False
'u32tf vs u32fft : False
'u32tf vs u32fff : False
'u32ft vs u32ttt : False
'u32ft vs u32ttf : False
'u32ft vs u32tft : False
'u32ft vs u32tff : False
'u32ft vs u32ftt : False
'u32ft vs u32ftf : True
'u32ft vs u32fft : False
'u32ft vs u32fff : False
'u32ff vs u32ttt : False
'u32ff vs u32ttf : False
'u32ff vs u32tft : False
'u32ff vs u32tff : False
'u32ff vs u32ftt : False
'u32ff vs u32ftf : False
'u32ff vs u32fft : False
'u32ff vs u32fff : True

備註

如果下列所有條件成立，則會將兩 UTF32Encoding 個物件視為相等：

  • 這兩個物件都使用相同的位元組順序。

  • 這兩個物件都提供位元組順序標記，或兩者都未提供。

  • 這兩個物件都使用相同的編碼器後援。

  • 這兩個物件都使用相同的解碼器後援。

適用於

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