static void Main(string[] args)
{
BirthdayInfo birth = new BirthdayInfo();
birth.Name = "아이유";
birth.Birthday = new DateTime(1993, 5, 16);
Console.WriteLine($"Name:{birth.Name}");
Console.WriteLine($"Birthday:{birth.Birthday.ToShortDateString()}");
Console.WriteLine($"age:{birth.age}");
Console.WriteLine(new DateTime(1, 1, 1, 12, 10, 10).Ticks);
Console.WriteLine(new DateTime(1, 1, 1, 12, 10, 11).Ticks);
Console.WriteLine(new DateTime(438110000000));
}
static void Main(string[] args)
{
BirthdayInfo b1 = new BirthdayInfo();
b1.Name = "아이유";
b1.Birthday = new DateTime(1993, 5, 16);
Console.WriteLine(DateTime.Now.Subtract(b1.Birthday).Ticks);
Console.WriteLine(new DateTime(0001, 1, 1, 12, 1, 1).Ticks);
Console.WriteLine(new DateTime(0001, 1, 1, 12, 1, 2).Ticks);
Console.WriteLine(new DateTime(432620000000));
Console.WriteLine($"Name: {b1.Name}");
Console.WriteLine($"Birthday: {b1.Birthday}");
Console.WriteLine($"Age: {b1.Age}");
}