门面模式

FacadePattern/ATM.cs

@@ -1,12 +1,86 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace FacadePattern
 {
-    class ATM
+    public class ATM
     {
+        public void DisplayUi()
+        {
+            var facade = new AtmFacade();
+
+            while (true)
+                try
+                {
+                    if (!facade.IsLogin())
+                    {
+                        Console.WriteLine("请输入银行卡号：");
+                        var bkNo = Console.ReadLine();
+                        Console.WriteLine("请输入密码：");
+                        var pwd = Console.ReadLine();
+                        facade.Login(bkNo, pwd);
+                    }
+                    else
+                    {
+                        ShowBusiness(facade);
+                    }
+                }
+                catch (Exception ex)
+                {
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.WriteLine(ex.Message);
+                    Console.ResetColor();
+                }
+        }
+
+
+        private static void ShowBusiness(AtmFacade facade)
+        {
+            Console.WriteLine("==========================================");
+            Console.WriteLine("欢迎你！请选择服务项目：");
+            Console.WriteLine("1、取款");
+            Console.WriteLine("2、存款");
+            Console.WriteLine("3、转账");
+            Console.WriteLine("4、查询余额");
+            Console.WriteLine("5、清屏");
+            Console.WriteLine("==========================================");
+
+            var pressKey = Console.ReadKey();
+
+            switch (pressKey.Key)
+            {
+                case ConsoleKey.D1:
+                    Console.WriteLine();
+                    Console.WriteLine("请输入取款金额：");
+                    var money = Convert.ToInt32(Console.ReadLine());
+                    facade.WithdrewCash(money);
+                    break;
+                case ConsoleKey.D2:
+                    Console.WriteLine();
+                    Console.WriteLine("请输入存款金额：");
+                    var depositNum = Convert.ToInt32(Console.ReadLine());
+                    facade.DepositCash(depositNum);
+                    break;
+                case ConsoleKey.D3:
+                    Console.WriteLine();
+                    Console.WriteLine("请输入目标账号：");
+                    var targetNo = Console.ReadLine();
+                    Console.WriteLine("请输入转账金额：");
+                    var transferNum = Convert.ToInt32(Console.ReadLine());
+                    facade.TransferMoney(targetNo, transferNum);
+                    break;
+                case ConsoleKey.D4:
+                    Console.WriteLine();
+                    facade.QueryBalance();
+                    break;
+                case ConsoleKey.D5:
+                    Console.Clear();
+                    break;
+                default:
+                    Console.ForegroundColor = ConsoleColor.Red;
+                    Console.WriteLine("输入有误，请重新输入");
+                    Console.ResetColor();
+                    break;
+            }
+        }
     }
-}
+}

FacadePattern/AccountSubsystem.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace FacadePattern
+{
+    /// <summary>
+    /// 账户管理子系统
+    /// </summary>
+    public static class AccountSubsystem
+    {
+        private static readonly List<BankAccount> Accounts = new List<BankAccount>
+        {
+            new BankAccount("123455", "555555", "圣杰", "138****9309", 1000000),
+            new BankAccount("123454", "444444", "产品汪", "157****9309", 2000000),
+            new BankAccount("123453", "333333", "运营喵", "154****9309", 3000000),
+            new BankAccount("123452", "222222", "程序猿", "187****9309", 4000000),
+            new BankAccount("123451", "111111", "设计狮", "189****9309", 5000000)
+        };
+
+        public static BankAccount Login(string bankNo, string password)
+        {
+            var bankAccount = Accounts.FirstOrDefault(a => a.BankNo == bankNo);
+            if (bankAccount == null)
+                throw new Exception("无效卡号！！！");
+
+            if (bankAccount.Password != password)
+                throw new Exception("密码错误！！！");
+
+            return bankAccount;
+        }
+
+        public static BankAccount GetAccount(string bankNo)
+        {
+            var bankAccount = Accounts.FirstOrDefault(a => a.BankNo == bankNo);
+            if (bankAccount == null)
+                throw new Exception("无效卡号！！！");
+
+
+            return bankAccount;
+        }
+
+        public static void Display(BankAccount account)
+        {
+            Console.WriteLine("卡号：{0}，持卡人姓名：{1}，手机号：{2}，余额：{3}", account.BankNo, account.Name, account.Phone,
+                account.TotalMoney);
+        }
+
+
+        public static bool ChangePassword()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

FacadePattern/AccountVerificationCenter.cs

@@ -1,23 +0,0 @@
-using System.Collections.Generic;
-
-namespace FacadePattern
-{
-    /// <summary>
-    ///     银行账户验证中心
-    /// </summary>
-    public class AccountVerificationCenter
-    {
-        private readonly List<BankAccount> accounts = new List<BankAccount>
-        {
-            new BankAccount("123456789012345", "555555", "圣杰", "135****9309", 1000000),
-            new BankAccount("123456789012346", "222222", "Jeffrey", "135****9309", 2000000),
-            new BankAccount("123456789012347", "333333", "Shengjie", "135****9309", 3000000),
-            new BankAccount("123456789012348", "777777", "程序猿", "135****9309", 4000000),
-            new BankAccount("123456789012349", "888888", "设计狮", "135****9309", 5000000)
-        };
-
-        public void Verify(string bankNo, string password)
-        {
-        }
-    }
-}

FacadePattern/AtmFacade.cs

@@ -0,0 +1,72 @@
+using System;
+
+namespace FacadePattern
+{
+    /// <summary>
+    ///     ATM机专属门面
+    /// </summary>
+    public class AtmFacade
+    {
+        private readonly IBankSubsystem _bankSubsystem = new BankSubsystem();
+        private BankAccount _account;
+
+        public void Login(string no, string pwd)
+        {
+            _account = AccountSubsystem.Login(no, pwd);
+        }
+
+        public bool IsLogin()
+        {
+            return _account != null;
+        }
+
+        /// <summary>
+        ///     取款
+        /// </summary>
+        /// <param name="money"></param>
+        public void WithdrewCash(int money)
+        {
+            if (_bankSubsystem.WithdrewMoney(_account, money))
+            {
+                Console.WriteLine("取款成功！");
+                AccountSubsystem.Display(_account);
+            }
+        }
+
+        /// <summary>
+        ///     存款
+        /// </summary>
+        /// <param name="money"></param>
+        public void DepositCash(int money)
+        {
+            if (_bankSubsystem.DepositMoney(_account, money))
+            {
+                Console.WriteLine("存款成功！");
+                AccountSubsystem.Display(_account);
+            }
+        }
+
+        /// <summary>
+        ///     查余额
+        /// </summary>
+        public void QueryBalance()
+        {
+            if (_bankSubsystem.CheckBalance(_account) > 0)
+                AccountSubsystem.Display(_account);
+        }
+
+        /// <summary>
+        ///     转账
+        /// </summary>
+        /// <param name="targetNo"></param>
+        /// <param name="money"></param>
+        public void TransferMoney(string targetNo, int money)
+        {
+            if (_bankSubsystem.TransferMoney(_account, targetNo, money))
+            {
+                Console.WriteLine("转账成功！");
+                AccountSubsystem.Display(_account);
+            }
+        }
+    }
+}

FacadePattern/Bank.cs

@@ -1,32 +0,0 @@
-using System;
-
-namespace FacadePattern
-{
-    public class Bank : IBank
-    {
-        /// <summary>
-        ///     查询余额
-        /// </summary>
-        /// <param name="account">银行账户</param>
-        /// <returns></returns>
-        public int CheckBalance(BankAccount account)
-        {
-            throw new NotImplementedException();
-        }
-
-        public int WithdrewMoney(BankAccount account, int money)
-        {
-            throw new NotImplementedException();
-        }
-
-        public int DepositMoney(BankAccount account, int money)
-        {
-            throw new NotImplementedException();
-        }
-
-        public int TransferMoney(BankAccount account, BankAccount targetAccount, int money)
-        {
-            throw new NotImplementedException();
-        }
-    }
-}

FacadePattern/BankSubsystem.cs

@@ -0,0 +1,80 @@
+using System;
+
+namespace FacadePattern
+{
+    public class BankSubsystem : IBankSubsystem
+    {
+        /// <summary>
+        ///     查询余额
+        /// </summary>
+        /// <param name="account">银行账户</param>
+        /// <returns></returns>
+        public int CheckBalance(BankAccount account)
+        {
+            return account.TotalMoney;
+        }
+
+        /// <summary>
+        ///     取款
+        /// </summary>
+        /// <param name="account">银行账户</param>
+        /// <param name="money">取多少钱</param>
+        /// <returns>余额</returns>
+        public bool WithdrewMoney(BankAccount account, int money)
+        {
+            if (account.TotalMoney >= money)
+                account.TotalMoney -= money;
+            else
+                throw new Exception("余额不足！");
+
+            return true;
+        }
+
+        /// <summary>
+        ///     转账
+        /// </summary>
+        /// <param name="account">转出账户</param>
+        /// <param name="targetNo">目标账户</param>
+        /// <param name="money">转多少钱</param>
+        /// <returns></returns>
+        public bool TransferMoney(BankAccount account, string targetNo, int money)
+        {
+            var targetAccount = AccountSubsystem.GetAccount(targetNo);
+
+            if (targetAccount == null)
+                throw new Exception("目标账户不存在！");
+
+            if (account.TotalMoney < money)
+                throw new Exception("余额不足！");
+
+            account.TotalMoney -= money;
+            targetAccount.TotalMoney += money;
+
+            return true;
+        }
+
+        /// <summary>
+        ///     存款
+        /// </summary>
+        /// <param name="account">银行账户</param>
+        /// <param name="money">存多少钱</param>
+        /// <returns></returns>
+        public bool DepositMoney(BankAccount account, int money)
+        {
+            account.TotalMoney += money;
+            return true;
+        }
+
+        /// <summary>
+        ///     充值话费
+        /// </summary>
+        /// <param name="phoneNumber">手机号</param>
+        /// <param name="account">银行账户</param>
+        /// <param name="money">充值多少</param>
+        /// <returns></returns>
+        public bool RechargeMobilePhone(BankAccount account, string phoneNumber, int money)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

FacadePattern/FacadePattern.csproj

@@ -43,11 +43,12 @@
     <Reference Include="System.Xml" />
   </ItemGroup>
   <ItemGroup>
-    <Compile Include="AccountVerificationCenter.cs" />
+    <Compile Include="AccountSubsystem.cs" />
     <Compile Include="ATM.cs" />
-    <Compile Include="Bank.cs" />
+    <Compile Include="AtmFacade.cs" />
+    <Compile Include="BankSubsystem.cs" />
     <Compile Include="BankAccount.cs" />
-    <Compile Include="IBank.cs" />
+    <Compile Include="IBankSubsystem.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>

FacadePattern/IBank.cs → FacadePattern/IBankSubsystem.cs

@@ -1,6 +1,9 @@
 namespace FacadePattern
 {
-    public interface IBank
+    /// <summary>
+    ///     银行现金业务子系统
+    /// </summary>
+    public interface IBankSubsystem
     {
         /// <summary>
         ///     查询余额
@@ -15,7 +18,7 @@
         /// <param name="account">银行账户</param>
         /// <param name="money">取多少钱</param>
         /// <returns></returns>
-        int WithdrewMoney(BankAccount account, int money);
+        bool WithdrewMoney(BankAccount account, int money);
 
         /// <summary>
         ///     存款
@@ -23,15 +26,24 @@
         /// <param name="account">银行账户</param>
         /// <param name="money">存多少钱</param>
         /// <returns></returns>
-        int DepositMoney(BankAccount account, int money);
+        bool DepositMoney(BankAccount account, int money);
 
         /// <summary>
         ///     转账
         /// </summary>
         /// <param name="account">转出账户</param>
-        /// <param name="targetAccount">目标账户</param>
+        /// <param name="targetNo">目标账户</param>
         /// <param name="money">转多少钱</param>
         /// <returns></returns>
-        int TransferMoney(BankAccount account, BankAccount targetAccount, int money);
+        bool TransferMoney(BankAccount account, string targetNo, int money);
+
+        /// <summary>
+        ///     充值话费
+        /// </summary>
+        /// <param name="phoneNumber">手机号</param>
+        /// <param name="account">银行账户</param>
+        /// <param name="money">充值多少</param>
+        /// <returns></returns>
+        bool RechargeMobilePhone(BankAccount account, string phoneNumber, int money);
     }
 }

FacadePattern/Program.cs

@@ -1,15 +1,11 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace FacadePattern
+namespace FacadePattern
 {
-    class Program
+    internal class Program
     {
-        static void Main(string[] args)
+        private static void Main(string[] args)
         {
+            var atm = new ATM();
+            atm.DisplayUi();
         }
     }
-}
+}