String.Inequality(String, String) String.Inequality(String, String) String.Inequality(String, String) String.Inequality(String, String) Operator

Definición

Determina si dos cadenas especificadas tienen valores diferentes.Determines whether two specified strings have different values.

public:
 static bool operator !=(System::String ^ a, System::String ^ b);
public static bool operator != (string a, string b);
static member op_Inequality : string * string -> bool
Public Shared Operator != (a As String, b As String) As Boolean

Parámetros

a
String String String String

Primera cadena que se va a comparar, o null.The first string to compare, or null.

b
String String String String

Segunda cadena que se va a comparar, o null.The second string to compare, or null.

Devoluciones

true si el valor de a es diferente que el valor de b; en caso contrario, false.true if the value of a is different from the value of b; otherwise, false.

Ejemplos

El ejemplo siguiente muestra el operador de desigualdad.The following example demonstrates the inequality operator.

// Example for the String Inequality operator.
using namespace System;
void CompareAndDisplay( String^ Comparand )
{
   String^ Lower = "abcd";
   Console::WriteLine( "\"{0}\" != \"{1}\" ?  {2}", Lower, Comparand, Lower != Comparand );
}

int main()
{
   Console::WriteLine( "This example of the String Inequality operator\n"
   "generates the following output.\n" );
   CompareAndDisplay( "ijkl" );
   CompareAndDisplay( "ABCD" );
   CompareAndDisplay( "abcd" );
}

/*
This example of the String Inequality operator
generates the following output.

"abcd" != "ijkl" ?  True
"abcd" != "ABCD" ?  True
"abcd" != "abcd" ?  False
*/
// Example for the String Inequality operator.
using System;

class InequalityOp 
{
    public static void Main() 
    {
        Console.WriteLine( 
            "This example of the String Inequality operator\n" +
            "generates the following output.\n" );

        CompareAndDisplay( "ijkl" );
        CompareAndDisplay( "ABCD" );
        CompareAndDisplay( "abcd" );
    }

    static void CompareAndDisplay( String Comparand )
    {
        String  Lower = "abcd";

        Console.WriteLine( 
            "\"{0}\" != \"{1}\" ?  {2}",
            Lower, Comparand, Lower != Comparand );
    }
}

/*
This example of the String Inequality operator
generates the following output.

"abcd" != "ijkl" ?  True
"abcd" != "ABCD" ?  True
"abcd" != "abcd" ?  False
*/

Comentarios

El Inequality método define la operación del operador de desigualdad para los String clase.The Inequality method defines the operation of the inequality operator for the String class. Permite código como se muestra en la sección ejemplos.It enables code such as that shown in the Examples section.

El Inequality operador a su vez llama a estático Equals(String, String) método, que realiza una comparación ordinal (distingue mayúsculas de minúsculas y cuenta la referencia cultural).The Inequality operator in turn calls the static Equals(String, String) method, which performs an ordinal (case-sensitive and culture-insensitive) comparison.

Nota

El compilador de Visual Basic no resuelve el operador de desigualdad como una llamada a la Inequality método.The Visual Basic compiler does not resolve the inequality operator as a call to the Inequality method. En su lugar, el operador de desigualdad ajusta una llamada a la Operators.CompareString método.Instead, the inequality operator wraps a call to the Operators.CompareString method.

Se aplica a