面向对象基础之基础—控制台C#模拟银行ATM存取操作实例
c#控制台应用程序ATM银行操作实例。主要介绍了设计的方法；使用的类介绍；具体的运行界面；程序代码。代码直接写在一起放在Programm.cs中，拷贝可直接运行。
一、设计
1、原则上采用三层：（1）操作界面层；（2）银行管理中间层；（3）底层账户
2、操作界面层 到 银行中间层 到底层账户
二、三个类
1、ATM类：界面类，显示各种操作界面
2、Bank类：银行账号存储及操作，如删除账户、寻找账号、获得所有账号等等
3、Account类：存储某个账户的数据及操作，如收入、支出、获得余额、获得所有存取记录
三、主要运行界面
四、具体代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Collections;
namespace ATMApp
{
[Serializable]
class ATM
{
public static Bank icbcbank = new Bank("ICBC");
static void Main(string[] args)
{
LoadIcbcBankInfo();
string code = "";
do
{
Console.Clear();
Console.Title = "ATM";
Console.WriteLine(" " + icbcbank.bankName + "模拟ATM");
Console.WriteLine("---------------------");
Console.WriteLine("1.登录 2.开户 0.退出");
Console.WriteLine("--------------------");
Console.Write("请选择：");
code = Console.ReadLine();
if (code == "1")
ATMLoginAccountUI();
else if (code == "2")
ATMOpenAccountUI();
else if (code == "3")
{
foreach (Account account in icbcbank.GetAllAccounts())
{
Console.WriteLine(account.accountNo);
}
Console.ReadKey();
}
} while (code != "0");
SaveIcbcBankInfo();
Console.WriteLine("按一下任意键退出系统...");
}
public static void ATMLoginAccountUI()
{
Console.Clear();
Console.WriteLine("登录");
Console.WriteLine("--------------");
Console.Write("输入你的账号：");
string accNo = Console.ReadLine();
Console.Write("输入你的密码：");
string pwd = Console.ReadLine();
if (!icbcbank.LoginAccount(accNo, pwd))
{
Console.WriteLine("无账号或密码不对！");
Console.ReadKey();
return; //返出该方法
}
else
{
ShowMenuUI(accNo);
}
}
public static void ShowMenuUI(string accNo)
{
do
{
Console.Clear();
Console.WriteLine(" 交易菜单");
Console.WriteLine("--------------");
Console.WriteLine("账号:" + accNo);
Console.WriteLine("--------------");
Console.WriteLine("1.查余额");
Console.WriteLine("2.取 款");
Console.WriteLine("3.存 款");
Console.WriteLine("4.转 账"); // 转账功能还没有做
Console.WriteLine("5.查交易");
Console.WriteLine("6.改密码");
Console.WriteLine("7.销账号");
Console.WriteLine("0.退 出");
Console.WriteLine("---------------");
Console.Write("请选择:");
switch (Console.ReadLine())
{
case "1":
DisplayBalanceUI(accNo);
break;
case "2":
WithdrawUI(accNo);
break;
case "3":
depositUI(accNo);
break;
case "6":
ChangePasswordUI(accNo);
break;
case "5":
QueryAccountTransUI(accNo);
break;
case "7":
DelAccountUI(accNo);
break;
case "0":
return;
}
} while (true);
}
public static void DelAccountUI(string AccNo)
{
Console.Write("是否真的要销户(y/n)？");
string answer = Console.ReadLine();
if ("y" == answer)
{
if (!icbcbank.DelAccountById(AccNo))
{
Console.WriteLine("账户余额为不为0，不能销户！");
Console.ReadKey();
}
else
{
Console.WriteLine("销户成功，欢迎再来！");
Console.ReadKey();
SaveIcbcBankInfo();//别忘，因为是非正常退出应用程序
Environment.Exit(0);//直接强制退出应用程序.有点暴力哦，哈哈哈—老猪新作。
}
}
}
public static void QueryAccountTransUI(string AccNo)
{
Console.WriteLine("\t 所有交易记录");
Console.WriteLine("\t ——————");
Console.WriteLine("{0,-14}\t{1,-10}", "交易时间", " 交易金额");
Console.WriteLine();
foreach (var item in icbcbank.GetAccountRecords(AccNo))
{
Console.WriteLine("{0,-14}\t{1,10}", item.Key.ToString("yyyy/MM/dd HH:mm"), item.Value.ToString("+#.##;-#.##;0")); //大写HH是24小时制
Console.WriteLine("—————————————————");
}
Console.WriteLine("{0,-14}\t{1,10}", "目前余额", icbcbank.GetBalanceByAccountNo(AccNo).ToString("+#.##;-#.##;0"));
Console.ReadKey();
}
public static void ChangePasswordUI(string AccNo)
{
Console.Write("输入老的密码：");
string oldpwd = Console.ReadLine();
Console.Write("输入新的密码：");
string newpwd = Console.ReadLine();
if (icbcbank.ChangePasword(AccNo, oldpwd, newpwd))
{
Console.WriteLine("成功修改");
}
else
Console.WriteLine("成功不修改");
Console.ReadKey();
}
public static void depositUI(string AccNo)
{
Console.Write("输入存款金额：");
double amount = Convert.ToDouble(Console.ReadLine());
if (!icbcbank.DepositAccount(AccNo, amount))
{
Console.WriteLine("存款不成功");
}
else
Console.WriteLine("存款成功");
Console.ReadKey();
}
public static void WithdrawUI(string AccNo)
{
Console.Write("输入取款金额：");
double amount = Convert.ToDouble(Console.ReadLine());
if (!icbcbank.WithdrawAccount(AccNo, amount))
{
Console.WriteLine("取款不成功，余额可能不足");
}
else
Console.WriteLine("取款成功!,取款{0}元,余额{1}元", amount, icbcbank.GetBalanceByAccountNo(AccNo));
Console.ReadKey();
}
public static void DisplayBalanceUI(string AccNo)
{
Console.Write("账户余额为：" + icbcbank.GetBalanceByAccountNo(AccNo));
Console.ReadKey();
}
public static void ATMOpenAccountUI()
{
Console.Clear();
Console.WriteLine("开户");
Console.WriteLine("--------------");
Console.Write("你要的账号：");
string accNo = Console.ReadLine();
Console.Write("你设的密码：");
string pwd = Console.ReadLine();
if (accNo == "" || pwd == "")
{
Console.WriteLine("用户名密码不能为空，开户失败！");
Console.ReadKey();
return;
}
if (!icbcbank.OpenAccount(accNo, pwd))
{
Console.WriteLine("可能已经存在，开户错误!");
Console.ReadKey();
return;
}
Console.WriteLine("开户成功!");
Console.ReadKey();
ShowMenuUI(accNo);
}
static void LoadIcbcBankInfo()
{
///1、文件存在不
///2、读文件
///3、二进制
///4、反序列读到当前静态银行bank
if (File.Exists("bank.dat"))
{
FileStream fs = new FileStream("bank.dat", FileMode.Open, FileAccess.Read);
BinaryFormatter bf = new BinaryFormatter();
icbcbank = bf.Deserialize(fs) as Bank;
fs.Close();
}
}
static void SaveIcbcBankInfo()
{
///1、建立bank
///2、二进制化
///3、序列化
FileStream fs = new FileStream("bank.dat", FileMode.Create, FileAccess.Write);
BinaryFormatter bf = new BinaryFormatter();
bf.Serialize(fs, icbcbank);
fs.Close();
}
}
class Bank
{
public string bankName; //存放银行对象名称变量
public ArrayList accounts; //用ArrayList类型，存放银行所有账户对象变量
public double rateinterest;
public Bank(string bankname)
{
this.bankName = bankname;
accounts = new ArrayList();
rateinterest = 0.005;
}
public bool OpenAccount(string id, string pwd)
{
foreach (Account acc in accounts)
{
if (acc.accountNo == id)
{
return false;
}
}
Account account = new Account(id, pwd);
accounts.Add(account);
return true;
}
public ArrayList GetAllAccounts()
{
return accounts;
}
public Account Find(string AccNo)
{
foreach (Account item in accounts)
{
if (item.accountNo == AccNo)
return item;
}
return null;
}
internal bool LoginAccount(string AccNo, string pwd)
{
Account account = Find(AccNo);
if (account != null && account.Login(AccNo, pwd)) //如果账号null。所以加account!=null
return true;
else
return false;
}
public double GetBalanceByAccountNo(string AccountNo)
{
Account account = Find(AccountNo);
return account.GetBalance();
}
internal bool WithdrawAccount(string AccNo, double amount)
{
Account account = Find(AccNo);
return account.Withdraw(amount);
}
internal bool DepositAccount(string AccNo, double amount)
{
Account account = Find(AccNo);
return account.Deposit(amount);
}
internal bool ChangePasword(string accNo, string oldpwd, string newpwd)
{
Account account = Find(accNo);
return account.ChangePasword(oldpwd, newpwd);
}
internal Dictionary<DateTime, double> GetAccountRecords(string accNo)
{
Account account = Find(accNo);
return account.GetRecords();
}
internal bool DelAccountById(string AccNo)
{
Account account = Find(AccNo);
if (account.GetBalance() == 0)
{
accounts.Remove(account);
return true;
}
return false;
}
}
class Account
{
public string accountNo;
public string password;
public double balance;
public DateTime createdTime;
public Dictionary<DateTime, double> dicRecords; //存放账户所有交易记录字段：交易（存或取）一次记一次
public Account(string no, string pwd)
{
accountNo = no;
password = pwd;
balance = 0;
createdTime = DateTime.Now;
dicRecords = new Dictionary<DateTime, double>();
dicRecords[createdTime] = balance;//下面也可以 dicRecords.Add(createdTime,balance);//开户
}
public bool Withdraw(double amount)
{
if (amount > balance || amount <= 0)
{
return false;
}
balance -= amount;
dicRecords.Add(DateTime.Now, -amount);
return true;
}
public bool Deposit(double amount)
{
if (amount < 0)
return false;
else
{
balance += amount;
dicRecords.Add(DateTime.Now, +amount);
return true;
}
}
public double GetBalance()
{
return balance;
}
public bool Login(string no, string pwd)
{
if (this.accountNo == no && this.password == pwd)
return true;
else
return false;
}
public bool ChangePasword(string oldPwd, string newPwd)
{
if (oldPwd != password)
{
return false;
}
password = newPwd;
return true;
}
public Dictionary<DateTime, double> GetRecords()
{
return dicRecords;
}
}
}
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