public static void Main(string[] args)
{
var client1 = new Client("catdog", "123", "Алексей", 3000, "client", "*****@*****.**", 39);
Console.WriteLine($"Role: {client1.Roll}");
Console.WriteLine($"Name: {client1.Name}");
Console.WriteLine($"CurrentSum: {client1.CurrentSum}");
Console.WriteLine();
client1.Put(500);
Console.WriteLine($"{client1.Name} Put CurrentSum: {client1.CurrentSum}");
client1.Withdraw(600);
Console.WriteLine($"{client1.Name} WithDraw CurrentSum: {client1.CurrentSum}");
Console.WriteLine();
ISchool pupil = new Person();
IUniversity student = new Person();
pupil.Study();
student.Study();
Person person = new Person();
ISchool p1 = person as ISchool;
p1.Study();
IUniversity p2 = person as IUniversity;
p2.Study();
}
static void Main(string[] args)
{
ISchool pupil = new Person();
IUniversity student = new Person();
pupil.Study();
student.Study();
Person person = new Person();
ISchool p1 = person as ISchool;
p1.Study();
//person в данном случае является и школьником и студентом
IUniversity p2 = person as IUniversity;
p2.Study();
Console.ReadKey();
}