namespace ConsoleApplication1
{//四个子系统类class SubSystemOne{public void MethodOne(){Console.WriteLine("子系统方法一");}}class SubSystemTwo{public void MethodTwo(){Console.WriteLine("子系统方法二");}}class SubSystemThree{public void MethodThree(){Console.WriteLine("子系统方法三");}}class SubSystemFour{public void MethodFour(){Console.WriteLine("子系统方法四");}}//外观类class Facade{SubSystemOne one;       //外观类，它需要了解所有的子系统的方法或属性，进行组合，以被外界调用
        SubSystemTwo two;SubSystemThree three;SubSystemFour four; public Facade(){one = new SubSystemOne();two = new SubSystemTwo();three = new SubSystemThree();four = new SubSystemFour();}public void MethodA()       //这样相对于外部来说，调用MethiodA方法就等于同时调用了3个方法，但外观看起来是一个方法
        {Console.WriteLine("\n方法组A()");one.MethodOne();two.MethodTwo();four.MethodFour();}public void MethodB(){Console.WriteLine("\n方法组B()");  two.MethodTwo();three.MethodThree();}}class Program{static void Main(string[] args){Facade facade = new Facade();facade.MethodA();facade.MethodB();Console.ReadKey();}}
}

namespace ConsoleApplication1
{//股票1class Stock1{//卖股票public void Sell(){Console.WriteLine("股票1卖出");}//买股票public void Buy(){Console.WriteLine("股票1买入");}}//股票2class Stock2{//卖股票public void Sell(){Console.WriteLine("股票2卖出");}//买股票public void Buy(){Console.WriteLine("股票2买入");}}//股票3class Stock3{//卖股票public void Sell(){Console.WriteLine("股票3卖出");}//买股票public void Buy(){Console.WriteLine("股票3买入");}}//国债1class NationalDebt1{//卖国债public void Sell(){Console.WriteLine("国债1卖出");}//买国债public void Buy(){Console.WriteLine("国债1买入");}}//房地产1class Realty1{//卖出房产public void Sell(){Console.WriteLine("房产1卖出");}//买房产public void Buy(){Console.WriteLine("房产1买入");}}class Fund{Stock1 gu1;Stock2 gu2;Stock3 gu3;NationalDebt1 nd1;Realty1 rt1;public Fund(){gu1 = new Stock1();gu2 = new Stock2();gu3 = new Stock3();nd1 = new NationalDebt1();rt1 = new Realty1();}public void BuyFund(){gu1.Buy();gu2.Buy();gu3.Buy();nd1.Buy();rt1.Buy();}public void SellFund(){gu1.Sell();gu2.Sell();gu3.Sell();nd1.Sell();rt1.Sell();}}class Program{static void Main(string[] args){Fund jijin = new Fund();//基金购买
            jijin.BuyFund();//基金赎回
            jijin.SellFund();Console.ReadKey();}}
}