static void Main(string[] args)
{
var mt = new MovieTicket();
double oPrice = 60.0;
mt.Price = oPrice;
Console.WriteLine("原始票价：{0}", oPrice);
Console.WriteLine("----------------------------------------");
IDiscount discount1 = new StudentDiscount();
if (discount1 != null)
{
mt.Discount = discount1;
var currPrice = mt.Price;
Console.WriteLine("学生折后票价：{0}", currPrice);
}
IDiscount discount2 = new VIPDiscount();
if (discount2 != null)
{
mt.Discount = discount2;
var currPrice = mt.Price;
Console.WriteLine("VIP折后票价：{0}", currPrice);
}
IDiscount discount3 = new ChildrenDiscount();
if (discount3 != null)
{
mt.Discount = discount3;
var currPrice = mt.Price;
Console.WriteLine("儿童折后票价：{0}", currPrice);
}
}
static void Main(string[] args)
{
MovieTicket mt = new MovieTicket();
double originalPrice = 60.0;
double currentPrice = originalPrice;
mt.Price = originalPrice;
Console.WriteLine("原始票价：{0}", originalPrice);
Console.WriteLine("----------------------------------------");
IDiscount discount = new ChildrenDiscount();
if (discount != null)
{
mt.Discount = discount;
currentPrice = mt.Price;
}
Console.WriteLine("折后票价：{0}", currentPrice);
Console.ReadKey();
}
