namespace 外观模式
{class Program{static void Main(string[] args){Stock1 gu1 = new Stock1();Stock2 gu2 = new Stock2();Stock3 gu3 = new Stock3();NationalDebt1 nd1 = new NationalDebt1();Realty1 rt1 = new Realty1();gu1.Buy();   //用户需要了解股票，国债，房产情况，需要参与这些项目的具体买和卖，耦合性很高，
            gu2.Buy();gu3.Buy();nd1.Buy();rt1.Buy();gu1.Sell();gu2.Sell();gu3.Sell();nd1.Sell();rt1.Sell();Console.Read();}}//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{//卖房地产public void Sell(){Console.WriteLine(" 房产1卖出");}//买房地产public void Buy(){Console.WriteLine(" 房产1买入");}}}

namespace 外观模式
{class Program{static void Main(string[] args){Fund jijin = new Fund();   //此时用户不需要了解股票，甚至可以对股票一无所知，//买了基金就回家睡觉，一段时间后在赎回就可以大把数钱了，jijin.BuyFund();           //参与股票的具体买卖都由基金公司完成，客户端代码简洁明了，
            jijin.SellFund();Console.Read();}}class Fund{Stock1 gu1;Stock2 gu2;Stock3 gu3;NationalDebt1 nd1;Realty1 rt1;public Fund(){gu1 = new Stock1();      //基金类，它需要了解所有的股票或其它投资方式的属性和方法，进行组合，以备外界调用，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();}}//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{//卖房地产public void Sell(){Console.WriteLine(" 房产1卖出");}//买房地产public void Buy(){Console.WriteLine(" 房产1买入");}}}

namespace 外观模式
{class Program{static void Main(string[] args){Facade facade = new Facade();facade.MethodA();facade.MethodB();Console.Read();}}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");}}class Facade{SubSystemOne one;SubSystemTwo two;SubSystemThree three;SubSystemFour four;public Facade(){one = new SubSystemOne();two = new SubSystemTwo();three = new SubSystemThree();four = new SubSystemFour();}public void MethodA(){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();}}}