Contravarianza.cs

using System;

namespace Articulos.Cap04
{
    internal delegate void AccionSobreString(string s);

    internal class Aplicacion
    {
        public static void Main()
        {
            AccionSobreString ass = MetodoParamObject;

            ass("Blog xCSw");
        }

        static void MetodoParamObject(object paramObject)
        {
            Console.WriteLine(paramObject);
        }
    }
}