static void Main(string[] args)
{
Duck mallarDuck = new MallarDuck();
mallarDuck.PerformFly();
Console.ReadKey();
}
static void Main(string[] args)
{
Duck mallarDuck = new MallarDuck();
mallarDuck.Display();
mallarDuck.PerformQuack();
mallarDuck.PerformFly();
Console.WriteLine();
Duck modelDuck = new ModelDuck();
modelDuck.Display();
modelDuck.PerformQuack();
modelDuck.PerformFly();
//динамичекое изменение поведения во время выполнения
modelDuck.SetFlyBehavior(new FlyRocketPowered());
modelDuck.PerformFly();
Console.ReadKey();
}