static void BuilderPattern()
{
Console.WriteLine("建造者模式");
Meal vegMeal = new MealBuilder().PrepareVegMeal();
vegMeal.AddItem(new Pepsi());
vegMeal.ShowItems();
Console.WriteLine("总计:" + vegMeal.GetCost());
}
public static void Main(string[] args)
{
MealBuilder mealBuilder = new MealBuilder();
Meal vegMeal = mealBuilder.prepareVegMeal();
System.Console.WriteLine("Veg Meal");
Console.ReadKey();
vegMeal.showItems();
System.Console.WriteLine("Total COst :" + vegMeal.getCost());
Console.ReadKey();
Meal nonVegMeal = mealBuilder.prepareNonVegMeal();
System.Console.WriteLine(" \n \n nonVegMeal : ");
Console.ReadKey();
nonVegMeal.showItems();
System.Console.WriteLine("Total cost" + nonVegMeal.getCost());
Console.ReadKey();
}