Int16.Equals 方法

定义

返回一个值,该值指示此实例是否与指定的对象或 Int16 相等。Returns a value indicating whether this instance is equal to a specified object or Int16.

重载

Equals(Int16)

返回一个值,该值指示此实例是否等于指定的 Int16 值。Returns a value indicating whether this instance is equal to a specified Int16 value.

Equals(Object)

返回一个值,该值指示此实例是否等于指定对象。Returns a value indicating whether this instance is equal to a specified object.

Equals(Int16)

返回一个值,该值指示此实例是否等于指定的 Int16 值。Returns a value indicating whether this instance is equal to a specified Int16 value.

public:
 virtual bool Equals(short obj);
public bool Equals (short obj);
override this.Equals : int16 -> bool
Public Function Equals (obj As Short) As Boolean

参数

obj
Int16

要与此实例进行比较的 Int16 值。An Int16 value to compare to this instance.

返回

如果 true 的值与此实例相同,则为 obj;否则为 falsetrue if obj has the same value as this instance; otherwise, false.

实现

注解

此方法实现 System.IEquatable<T> 接口,并且执行的效果略优于 Equals,因为它不必将 obj 参数转换为对象。This method implements the System.IEquatable<T> interface, and performs slightly better than Equals because it does not have to convert the obj parameter to an object.

调用方说明

编译器重载决策可能会考虑两个 Equals(Int16) 方法重载的行为中的明显差异。Compiler overload resolution may account for an apparent difference in the behavior of the two Equals(Int16) method overloads. 如果定义了 obj 参数与 Int16 之间的隐式转换,并且参数未类型化为 Object,则编译器会执行隐式转换并调用 Equals(Int16) 方法。If an implicit conversion between the obj argument and an Int16 is defined and the argument is not typed as an Object, compilers perform an implicit conversion and call the Equals(Int16) method. 否则,它们调用 Equals(Object) 方法,如果其 obj 参数不是 Int16 值,则它始终返回 falseOtherwise, they call the Equals(Object) method, which always returns false if its obj argument is not an Int16 value. 下面的示例演示两个方法重载之间的行为差异。The following example illustrates the difference in behavior between the two method overloads. ByteSByte 值的情况下,第一个比较返回 true,因为编译器会自动执行扩大转换并调用 Equals(Int16) 方法,而第二个比较返回 false,因为编译器会调用 Equals(Object) 方法。In the case of the Byte and SByte values, the first comparison returns true because the compiler automatically performs a widening conversion and calls the Equals(Int16) method, whereas the second comparison returns false because the compiler calls the Equals(Object) method.

[! code-csharpsystem.web. Equals # 1][! code-vbsystem.web. Equals # 1][!code-csharpSystem.Int16.Equals#1] [!code-vbSystem.Int16.Equals#1]

另请参阅

Equals(Object)

返回一个值,该值指示此实例是否等于指定对象。Returns a value indicating whether this instance is equal to a specified object.

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

参数

obj
Object

要与此实例进行比较的对象。An object to compare to this instance.

返回

如果 trueobj 的实例并且等于此实例的值,则为 Int16;否则为 falsetrue if obj is an instance of Int16 and equals the value of this instance; otherwise, false.

示例

下面的代码示例阐释了如何在 Int16的上下文中使用 Equals,比较两个短值并在它们表示相同数字的情况下返回 true; 否则,将 falseThe following code example illustrates the use of Equals in the context of Int16, comparing two short values and returning true if they represent the same number, or false if they do not.

Int16 myVariable1 = 20;
Int16 myVariable2 = 20;

// Get and display the declaring type.
Console::WriteLine( "\nType of 'myVariable1' is '{0}' and  value is : {1}", myVariable1.GetType(), myVariable1 );
Console::WriteLine( "Type of 'myVariable2' is '{0}' and  value is : {1}", myVariable2.GetType(), myVariable2 );

// Compare 'myVariable1' instance with 'myVariable2' Object.
if ( myVariable1.Equals( myVariable2 ) )
      Console::WriteLine( "\nStructures 'myVariable1' and 'myVariable2' are equal" );
else
      Console::WriteLine( "\nStructures 'myVariable1' and 'myVariable2' are not equal" );

Int16 myVariable1 = 20;
Int16 myVariable2 = 20;

// Get and display the declaring type.
Console.WriteLine("\nType of 'myVariable1' is '{0}' and"+
     " value is :{1}",myVariable1.GetType(), myVariable1); 
Console.WriteLine("Type of 'myVariable2' is '{0}' and"+
     " value is :{1}",myVariable2.GetType(), myVariable2);

// Compare 'myVariable1' instance with 'myVariable2' Object.
if( myVariable1.Equals( myVariable2 ) )
   Console.WriteLine( "\nStructures 'myVariable1' and "+
         "'myVariable2' are equal");
else
   Console.WriteLine( "\nStructures 'myVariable1' and "+
         "'myVariable2' are not equal");

  Dim myVariable1 As Int16 = 20
  Dim myVariable2 As Int16 = 20
  
' Get and display the declaring type.
Console.WriteLine(ControlChars.NewLine + "Type of 'myVariable1' is '{0}' and" +  _
              " value is :{1}", myVariable1.GetType().ToString(), myVariable1.ToString())
Console.WriteLine("Type of 'myVariable2' is '{0}' and" +  _
           " value is :{1}", myVariable2.GetType().ToString(), myVariable2.ToString())
  
  ' Compare 'myVariable1' instance with 'myVariable2' Object.
  If myVariable1.Equals(myVariable2) Then
     Console.WriteLine(ControlChars.NewLine + "Structures 'myVariable1' and " +  _
                 "'myVariable2' are equal")
  Else
     Console.WriteLine(ControlChars.NewLine + "Structures 'myVariable1' and " +   _
              "'myVariable2' are not equal")
  End If

调用方说明

编译器重载决策可能会考虑两个 Equals(Int16) 方法重载的行为中的明显差异。Compiler overload resolution may account for an apparent difference in the behavior of the two Equals(Int16) method overloads. 如果定义了 obj 参数与 Int16 之间的隐式转换,并且参数未类型化为 Object,则编译器会执行隐式转换并调用 Equals(Int16) 方法。If an implicit conversion between the obj argument and an Int16 is defined and the argument is not typed as an Object, compilers perform an implicit conversion and call the Equals(Int16) method. 否则,它们调用 Equals(Object) 方法,如果其 obj 参数不是 Int16 值,则它始终返回 falseOtherwise, they call the Equals(Object) method, which always returns false if its obj argument is not an Int16 value. 下面的示例演示两个方法重载之间的行为差异。The following example illustrates the difference in behavior between the two method overloads. ByteSByte 值的情况下,第一个比较返回 true,因为编译器会自动执行扩大转换并调用 Equals(Int16) 方法,而第二个比较返回 false,因为编译器会调用 Equals(Object) 方法。In the case of the Byte and SByte values, the first comparison returns true because the compiler automatically performs a widening conversion and calls the Equals(Int16) method, whereas the second comparison returns false because the compiler calls the Equals(Object) method.

[! code-csharpsystem.web. Equals # 1][! code-vbsystem.web. Equals # 1][!code-csharpSystem.Int16.Equals#1] [!code-vbSystem.Int16.Equals#1]

适用于