标签：return v2p bit imm jsb uft 一个 logs \n
参考：https://www.cnblogs.com/stonefeng/p/5679638.html
公司门口有一个小摊卖手抓饼和肉夹馍的，有时候中午不想吃饭就会去光顾一下那个小摊，点了手抓饼之后往往还可以在这个基础之上增加一些配料，例如煎蛋，火腿片等等，每个配料的价格都不一样，不管你怎么配配料，最终价格是手抓饼基础价加上每一种所选配料价格的总和。小摊的价格单如下：
代码：
贩卖食物的具体对象类：
/// <summary>
/// 贩卖的食物具体对象
/// </summary>
public class FoodComponent
{
public string FoodName = "";
protected double m_Price;
public FoodComponent(string foodName, double price)
{
this.FoodName = foodName;
this.m_Price = price;
}
/// <summary>
/// 购买东西的描述
/// </summary>
/// <returns></returns>
public virtual string GetFoodDesc()
{
return this.FoodName;
}
public virtual double GetPrice()
{
return m_Price;
}
}
加料装饰抽象对象：
/// <summary>
/// 加料装饰抽象对象
/// </summary>
public abstract class Decorator : FoodComponent
{
protected FoodComponent m_Component;
public Decorator(string foodName, double price)
: base(foodName, price)
{
}
/// <summary>
/// 增加装饰对象
/// </summary>
/// <param name="component"></param>
public void SetComponent(FoodComponent component)
{
if (component != null)
{
this.m_Component = component;
Console.WriteLine("--加{0}一个，￥{1}元", base.FoodName, base.m_Price);
this.FoodName = this.m_Component.FoodName + ",加 " + base.FoodName;
}
}
public override double GetPrice()
{
if (m_Component == null)
{
return 0;
}
return this.m_Price;
}
}
具体的加料对象：
/// <summary>
/// 煎蛋
/// </summary>
public class FireEgg : Decorator
{
public FireEgg(string foodName = "煎蛋", double price = 2)
: base(foodName, price)
{
}
public override double GetPrice()
{
return m_Component.GetPrice() + this.m_Price;//加料后价格要累加
}
}
/// <summary>
/// 火腿片
/// </summary>
public class Ham : Decorator
{
public Ham(string foodName = "火腿片", double price = 1.5)
: base(foodName, price)
{
}
public override double GetPrice()
{
return m_Component.GetPrice() + this.m_Price;
}
}
/// <summary>
/// 肉松
/// </summary>
public class MeatFloss : Decorator
{
public MeatFloss(string foodName = "肉松", double price = 1)
: base(foodName, price)
{
}
public override double GetPrice()
{
return m_Component.GetPrice() + this.m_Price;
}
}
/// <summary>
/// 黄瓜丝
/// </summary>
public class Cucumber : Decorator
{
public Cucumber(string foodName = "黄瓜丝", double price = 0.5)
: base(foodName, price)
{
}
public override double GetPrice()
{
return m_Component.GetPrice() + this.m_Price;
}
}
调用方法：
static void Main(string[] args)
{
FoodComponent tornCake = new FoodComponent("手抓饼", 4);
Console.WriteLine("贩卖：{0},￥{1}元", tornCake.FoodName, tornCake.GetPrice());
var hum1 = new Ham();//1.5
hum1.SetComponent(tornCake);
System.Console.WriteLine("\r\n汇总：{0} \r\n合计:￥{1}元\r\n", hum1.GetFoodDesc(), hum1.GetPrice());
FoodComponent roujiamo = new FoodComponent("肉夹馍", 6);//6
Console.WriteLine("贩卖：{0},￥{1}元", roujiamo.FoodName, roujiamo.GetPrice());
var fireEgg1 = new FireEgg();//2
fireEgg1.SetComponent(roujiamo);
var fireEgg2 = new FireEgg();//2
fireEgg2.SetComponent(fireEgg1);
var hum = new Ham();//1.5
hum.SetComponent(fireEgg2);
var meatFloss = new MeatFloss();//肉松 1
meatFloss.SetComponent(hum);
var cucumber1 = new Cucumber();//黄瓜丝 0.5
cucumber1.SetComponent(meatFloss);
var cucumber2 = new Cucumber();//黄瓜丝 0.5
cucumber2.SetComponent(cucumber1);
//我好饿
System.Console.WriteLine("\r\n汇总：{0} \r\n合计:￥{1}元\r\n", cucumber2.GetFoodDesc(), cucumber2.GetPrice());
Console.Read();
}
效果：
标签：return v2p bit imm jsb uft 一个 logs \n
原文地址：https://www.cnblogs.com/luofuxian/p/10337973.html
