static void Main(string[] args)
{
Pizza p = new Ham(new Cheese(new LargePizza())); // L
Console.WriteLine(p.GetDescription());
Console.WriteLine(p.CalculateCost());
Console.ReadKey();
}
public void Allow_Being_Decorated_With_Cheese_And_Ham()
{
Pizza largePizza = new LargePizza();
largePizza = new Cheese(largePizza);
largePizza = new Ham(largePizza);
Assert.Equal("Large Pizza, Cheese, Ham", largePizza.GetDescription());
Assert.Equal(11.25m, largePizza.CalculateCost());
}
public static string Run()
{
Pizza largePizza = new LargePizza();
// wrap large pizza with our cheese decorator
largePizza = new Cheese(largePizza);
// wrap our large cheese pizza with our ham decorator
largePizza = new Ham(largePizza);
return($"{largePizza.GetDescription()} cost: {largePizza.CalculateCost():C2}");
}
public static void Bake()
{
Pizza pizza = new LargePizza();
Console.WriteLine($"{pizza.CalculateCost()}EUR for {pizza.GetDescription()}");
pizza = new Ham(pizza);
Console.WriteLine($"{pizza.CalculateCost()}EUR for {pizza.GetDescription()}");
pizza = new Cheese(pizza);
Console.WriteLine($"{pizza.CalculateCost()}EUR for {pizza.GetDescription()}");
pizza = new Corn(pizza);
Console.WriteLine($"{pizza.CalculateCost()}EUR for {pizza.GetDescription()}");
pizza = new Cheese(pizza);
Console.WriteLine($"{pizza.CalculateCost()}EUR for {pizza.GetDescription()}");
}
public void DoWork()
{
//客人訂了一份土司，不需要配料，列出他的價格與描述
IBreakfast bf1 = new Toast();
Console.WriteLine("餐點：{0} 價格：{1}", bf1.GetDescription(), bf1.GetCost());
//客人訂了一份貝果，要加"雙倍"火腿，列出他的價格與描述
IBreakfast bf2 = new Bego();
bf2 = new Ham(bf2);
bf2 = new Ham(bf2);
Console.WriteLine("餐點：{0} 價格：{1}", bf2.GetDescription(), bf2.GetCost());
//客人訂了一份漢堡，要加牛肉 生菜 起司，列出他的價格與描述
IBreakfast bf3 = new Hamburger();
bf3 = new Beef(bf3);
bf3 = new Lettuce(bf3);
bf3 = new Cheese(bf3);
Console.WriteLine("餐點：{0} 價格：{1}", bf3.GetDescription(), bf3.GetCost());
}
