using System;

​

var c = new Record

{

    A = 1,

    B = 2,

    C = "Teste 123"

};

Console.WriteLine($"Classe: {c.A}, {c.B}, {c.C}");

​

var c2 = c with { A = c.A * 5 };

Console.WriteLine($"Classe: {c.A}, {c.B}, {c.C}");

Console.WriteLine($"Classe: {c2.A}, {c2.B}, {c2.C}");

Console.WriteLine(c == c2);

​

var c3 = c;

Console.WriteLine($"Classe: {c.A}, {c.B}, {c.C}");

Console.WriteLine($"Classe: {c3.A}, {c3.B}, {c3.C}");

Console.WriteLine(c == c3);

Console.WriteLine(c.A is 1 or 2 or 3);

Console.WriteLine(c2.A is 1 or 2 or 3);

Console.WriteLine(c3.A is 1 or 2 or 3);

​

var c4 = c.Clonar();

Console.WriteLine($"Classe: {c4.A}, {c4.B}, {c4.C}, {c4.AMaisB}");

​

public record Record

{

    public int A {get;set;}

    public int B {get;set;}

    public string C {get;set;}

    public int AMaisB {

        get {

            return A + B;

        }

    }

    public Record Clonar(){

        return this with { A = 0 };

    }

}

​