static void Main(string[] args)
{
ReminderItem values = new ReminderItem(new DateTime(2020, 02, 17, 08, 00, 00), "Проснись тварь");
ReminderItem values1 = new ReminderItem(new DateTime(2020, 03, 01, 10, 30, 00), "Проснись киберспортсмен");
values.WriteProperties();
values1.WriteProperties();
Console.ReadKey();
}
static void Main(string[] args)
{
List <ReminderItem> list = new List <ReminderItem>();
var value1 = new ReminderItem(new DateTime(2020, 03, 01, 10, 30, 00), "WAKE UP!");
var value2 = new PhoneReminderItem("+79998887766", new DateTime(2020, 02, 17, 08, 00, 00), "Important call");
var value3 = new ChatReminderItem("MoscowNeverSleep", "charaz123", new DateTime(2020, 02, 17, 08, 00, 00), "Hello");
list.Add(value1);
list.Add(value2);
list.Add(value3);
list.ForEach((l) => l.WriteProperties());
Console.ReadKey();
}