MyBank（自助银行）系统

2022-07-24 12:34:01

光阴似箭，岁月如梭。

从开始学Java到现在学C#已快四个月了，我们学的东西越来越多了。但是虽说学到现在，都不知道有什么用？没地方表现啊。

那么今天我就来给大家说说说这些东西的用处吧。

就拿MyBank系统来讲解吧，望大家好好看将会得到不少的收获哦。

那么这个MyBank系统我们应该怎样来写呢？请看看下面的详细解答。

首先先看一些部分功能的效果图：

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" alt="" />

现在关键时刻到啦，那就是怎么写呢？请看看下面代码及方法。

步骤：

1.首先要创一个数组:代码如下：

Card[] cards = new Card[];

2：初始化卡类：

public void InitialData()

{ //01.准备一个卡对象 Card card1=new Card();

card1.CardNo = "025"; card1.CardOwner = "小英";

card1.CardPwd = "100"; 8 card1.Balance = 0.0;

//02.将卡对象赋值给数组第一项 cards[0] = card1; //创建第2个卡对象

Card card2=new Card(); card2.CardNo = "205"; card2.CardOwner = "小颖";

card2.CardPwd = "200"; card2.Balance = 500000000; cards[1] = card2;

3.开户

Console.WriteLine("请输入卡号：");

string cardNo = Console.ReadLine();

Console.WriteLine("请输入密码：");

string cardPwd = Console.ReadLine();

Console.WriteLine("请输入用户名：");

string cardOwner = Console.ReadLine();

Console.WriteLine("请输入开户金额：");

double balance = double.Parse(Console.ReadLine());

//先将四个零散的属性装配成一个Card对象 Card card=new Card();

card.CardNo = cardNo; card.CardPwd = cardPwd; card.CardOwner = cardOwner;

card.Balance = balance; //01.将card对象赋值给数组第一个为null的项目

for (int i = 0; i < cards.Length; i++) { if (cards[i]==null)

{ //我就将card赋值给cards[i] cards[i] = card;

Console.WriteLine("开户成功"); break; } } Console.WriteLine("===================");

Welcome(); } //输出所有账户的持卡人，以及余额 public void PrintCustomerInfo() { foreach (Card item in cards) {

//一个item就是一张卡 if (item!=null) {

Console.WriteLine("用户名{0}\t余额{1}", item.CardOwner, item.Balance);

}

4.存款

Console.WriteLine("请输入卡号:"); string cardno = Console.ReadLine();

bool flag = false; //如何判断对方卡号存在

foreach (Card item in cards) { if (item!=null)

{ if (item.CardNo.Equals(cardno))//卡号存在

{ //请输入金额 Console.WriteLine("请输入存款金额：");

int money = int.Parse(Console.ReadLine()); item.Balance += money;

Console.WriteLine("存款成功"); Console.WriteLine("余额：{0}",item.Balance); flag = true; break;

}

5.取款

bool flag = false;//默认没有该卡

       foreach (Card item in cards)

 {

       if (item!=null)

 {

 if (item.CardNo.Equals(account))//证明卡存在   003   001

 {

  //提示用户输入密码

 Console.WriteLine("请输入密码：");

  string pwd = Console.ReadLine();

     if (item.CardPwd.Equals(pwd))

   {

  //代码执行到这里，证明用户名和密码均正确

   Console.WriteLine("请输入取款金额：");

      int money = int.Parse(Console.ReadLine());

 if (money < item.Balance)

       {

    item.Balance = item.Balance - money;

               Console.WriteLine("取款成功，用户名是{0}的账户余额是{1}", item.CardOwner, item.Balance);

           }

   else          {

         Console.WriteLine("余额不足");

               }

         }

  else

 {

6.转账

 bool outCardFlag = false;//默认转入卡不存在

           int type = 0;

           foreach (Card card in cards)

           {

     if (card!=null)

               {

 if (card.CardNo.Equals(outCardNo)) //卡号一致

           {

          flag = true;

                       //判定密码是否一致

       if (card.CardPwd.Equals(outCardPwd)) //密码一致

                       {

    //用户名 密码均正确，可以执行后续内容

      Console.WriteLine("请输入转入卡卡号");

        string inCardNo = Console.ReadLine();

     #region 内层循环，转入卡

       foreach (Card card1 in cards)

  {

      if (card1 != null)

        {

    if (card1.CardNo.Equals(inCardNo)) //转入卡存在

         {

       type = 1;

           //存在，可以提示输入转账金额

          Console.WriteLine("请输入转账金额");

       int money = Convert.ToInt32(Console.ReadLine());

             if (money <= card.Balance) //合法

  {

        while (money % 100 != 0) //不是面值100的

        {

      Console.WriteLine("您输入的不合法");

           money = Convert.ToInt32(Console.ReadLine());

        }

这上面几个步骤就是写这个MyBank系统的关键。大家都得了什么收获？

本人能力有限，如果有不足之处，望大家给个建议哦，在这就先谢谢大家了。

码农公寓

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