1C#.NET的ATM自动存取款代码

(sum); return account; } throw new InvalidOperationException("非法账号！"); } public Account SetCeiling(long id, double newCeiling) { Account account = GetAccountByID(id); try { (account as CreditAccount).Ceiling = newCeiling; return account; } catch (Exception ex) { throw new InvalidOperationException("此账户不是信用账户！"); } throw new InvalidOperationException("非法账号！"); } public double GetTotalBalance() { double totalBalance = 0; foreach (Account account in accounts) { totalBalance += account.Balance; } return totalBalance; } public double GetTotalCeiling() { double totalCeiling = 0; foreach (Account account in accounts) { if (account is CreditAccount) { totalCeiling += (account as CreditAccount).Ceiling; } } return totalCeiling; } } }
} balance -= sum; } } }
Bank.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ATM { class Bank { private List<Account> accounts; public List<Account> Accounts { get { return accounts; } set { accounts = value; } } private int currentAccountNumber; public int CurrentAccountNumber { get { return currentAccountNumber; } set { currentAccountNumber = value; } } public Bank() { accounts = new List<Account>(); } public Account OpenAccount(string password, string confirmationPassword, string name, string personId, string email, int typeOfAccount) { Account newAccount; if (!password.Equals(confirmationPassword)) { throw new InvalidOperationException("两次密码输入的不一致！"); } switch (typeOfAccount) { case 1: newAccount = new SavingAccount(password, name, personId, email); break;
SavingAccount.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ATM { class SavingAccount:Account { public SavingAccount(string password, string name, string personId, string email) : base(password, name, personId, email) { { if (sum < 0) { throw new InvalidOperationException("输入的金额为负数！"); } if (sum> balance) { throw new InvalidOperationException("金额已经超出余额！"); } public override void Withdraw(double sum)
{ get { return balance; } set { balance = value; } } private static long idBuilder = 100000; public static long IdBuilder { get { return idBuilder; } set { idBuilder = value; } } public void Deposit(double sum) { if (sum < 0) { throw new InvalidOperationException("输入的金额为负数！"); } balance += sum; } public abstract void Withdraw(double sum); public Account() { { this.id = ++idBuilder; this.password = password; = name; this.personId = personId; this.email = email; } } } } public Account(string password, string name, string personId, string email)
Main 函数
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ATM { class Program { static Account SignIn(Bank icbc) { Console.WriteLine("\nPlease input your account ID:"); long id; try { id = long.Parse(Console.ReadLine()); } catch (FormatException) { Console.WriteLine("Invalid account ID!"); return null; } Console.WriteLine("Please input your password:"); string password = Console.ReadLine(); Account account; try { account = icbc.SignIn(id, password); } catch (InvalidOperationException ex) { Console.WriteLine(ex.Message); return null; } return account; } static void Main(string[] args) { Bank icbc = new Bank(); while (true) { Console.WriteLine("\nPlease choose the service you need:");
{ get { return ceiling; } set { ceiling = value; } } public CreditAccount(string password, string name, string personId, string email) : base(password, name, personId, email) { { if (sum < 0) { throw new InvalidOperationException("输入的金额为负数！"); } if (sum > balance + ceiling) { throw new InvalidOperationException("金额已经超出余额和透支度的总数！"); } balance -= sum; } } } } public override void Withdraw(double sum)
CreditAccount.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ATM { class CreditAccount:Account { protected double ceiling; public double Ceiling
case 2: newAccount = new CreditAccount(password, name, personId, email); break; default:throw new ArgumentOutOfRangeException("账户类型是1到2之间的整数"); } accounts.Add(newAccount); return newAccount; } private Account GetAccountByID(long id) { foreach (Account account in accounts) { if(account.ID==id) { return account; } } return null; } public Account SignIn(long id, string password) { foreach (Account account in accounts) { if (account.ID == id && account.Password.Equals(password)) { return account; } } throw new InvalidOperationException("用户名或者密码不正确，请重试！"); } public Account Deposit(long id, double sum) { Account account = GetAccountByID(id); if (account != null) { account.Deposit(sum); return account; } throw new InvalidOperationException("非法账号！"); } public Account Withdraw(long id, double sum) { Account account = GetAccountByID(id); if (account != null) {