MFC模拟自动取款机

框架：MFC
语言：C++

##（二）模拟自动取款机

1.问题描述

模拟银行的自动取款机ATM使用过程中的界面和用户交互过程。

2.基本要求

(1)模拟自动取款机的流程,实现查询银行卡余额、取款、修改密码、退出系统等功能。
(2)卡号和密码错误时最多输入3次，否则直接退出系统。
(4)系统通过必要的提示信息，提示用户完成相应的操作。
(5)取款金额受到信用卡余额、ATM机单笔最大取款金额和ATM当前剩余余额的限制。

3.实现提示

(1)设计ATM机类,具有核对密码,取款、修改密码、查询信息、退出系统、锁机吞卡等功能。
(2)银行卡具有身份验证、查询余额、修改密码、交易成功更改余额等工作。

源码预览

数据结构

#include <vector>
#include "pch.h"class ATMCore {
public:ATMCore() : m_amount(0), m_max(5000) {}public:void load(const CString& filename) {CFile file;if (file.Open(filename, CFile::modeRead | CFile::typeBinary)) {CArchive ar(&file, CArchive::load);int count;ar >> count;ar >> m_amount;ar >> m_max;m_customers.clear();for (int index = 0; index < count; ++index) {Customer customer;customer.load(ar);m_customers.push_back(customer);}}}void save(const CString& filename) const {CFile file;if (file.Open(filename, CFile::modeCreate | CFile::modeWrite | CFile::typeBinary)) {CArchive ar(&file, CArchive::store);int count = (int)m_customers.size();ar << count;ar << m_amount;ar << m_max;for (vector<Customer>::const_iterator iter = m_customers.begin(); iter != m_customers.end(); ++iter) {iter->save(ar);}}}Customer* login(const CString& id, const CString& password) {Customer* customer = find(id);if (customer) {if (customer->m_password == password) {return customer;}}return NULL;}bool deposit(const CString& id, double money) {Customer* customer = find(id);if (customer && money > 0) {customer->m_amount += money;m_amount += money;return true;}return false;}bool withdrawal(const CString& id, double money) {Customer* customer = find(id);if (customer && money > 0 && money <= customer->m_amount && money <= m_amount && money <= m_max) {customer->m_amount -= money;m_amount -= money;return true;}return false;}double getAmount() const {return m_amount;}void setAmount(double amount) {m_amount = amount;}double getMax() const {return m_max;}void setMax(double max) {m_max = max;}bool add(const CString& id, const CString& name, const CString& password) {if (find(id)) return false;Customer customer(id, name, password);m_customers.push_back(customer);return true;}Customer* find(const CString& id) {for (vector<Customer>::iterator iter = m_customers.begin(); iter != m_customers.end(); ++iter) {if (iter->m_id == id) {return &*iter;}}return NULL;}private:double m_amount;double m_max;vector<Customer> m_customers;
};

对话框


// ATMDlg.cpp : implementation file
//#include "pch.h"
#include "framework.h"
#include "ATM.h"
#include "ATMDlg.h"
#include "afxdialogex.h"#ifdef _DEBUG
#define new DEBUG_NEW
#endif// CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogEx
{
public:CAboutDlg();// Dialog Data
#ifdef AFX_DESIGN_TIMEenum { IDD = IDD_ABOUTBOX };
#endifprotected:virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support// Implementation
protected:DECLARE_MESSAGE_MAP()
};CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{CDialogEx::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()// CATMDlg dialogCATMDlg::CATMDlg(CWnd* pParent /*=nullptr*/): CDialogEx(IDD_ATM_DIALOG, pParent), m_core(NULL), m_user(NULL)
{m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}void CATMDlg::DoDataExchange(CDataExchange* pDX)
{CDialogEx::DoDataExchange(pDX);
}BEGIN_MESSAGE_MAP(CATMDlg, CDialogEx)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_BUTTON_MODIFY, &CATMDlg::OnBnClickedButtonModify)ON_BN_CLICKED(IDC_BUTTON_IN, &CATMDlg::OnBnClickedButtonIn)ON_BN_CLICKED(IDC_BUTTON_OUT, &CATMDlg::OnBnClickedButtonOut)
END_MESSAGE_MAP()// CATMDlg message handlersBOOL CATMDlg::OnInitDialog()
{CDialogEx::OnInitDialog();// Add "About..." menu item to system menu.// IDM_ABOUTBOX must be in the system command range.ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX < 0xF000);CMenu* pSysMenu = GetSystemMenu(FALSE);if (pSysMenu != nullptr){BOOL bNameValid;CString strAboutMenu;bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);ASSERT(bNameValid);if (!strAboutMenu.IsEmpty()){pSysMenu->AppendMenu(MF_SEPARATOR);pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);}}// Set the icon for this dialog.  The framework does this automatically//  when the application's main window is not a dialogSetIcon(m_hIcon, TRUE);          // Set big iconSetIcon(m_hIcon, FALSE);     // Set small icon// TODO: Add extra initialization hereSetDlgItemText(IDC_EDIT_ID, m_user->m_id);SetDlgItemText(IDC_EDIT_NAME, m_user->m_name);SetDlgItemText(IDC_EDIT_PASSWORD, m_user->m_password);SetDlgItemInt(IDC_EDIT_AMOUNT, (int)m_user->m_amount);return TRUE;  // return TRUE  unless you set the focus to a control
}void CATMDlg::OnSysCommand(UINT nID, LPARAM lParam)
{if ((nID & 0xFFF0) == IDM_ABOUTBOX){CAboutDlg dlgAbout;dlgAbout.DoModal();}else{CDialogEx::OnSysCommand(nID, lParam);}
}// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.void CATMDlg::OnPaint()
{if (IsIconic()){CPaintDC dc(this); // device context for paintingSendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);// Center icon in client rectangleint cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height() - cyIcon + 1) / 2;// Draw the icondc.DrawIcon(x, y, m_hIcon);}else{CDialogEx::OnPaint();}
}// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CATMDlg::OnQueryDragIcon()
{return static_cast<HCURSOR>(m_hIcon);
}void CATMDlg::OnBnClickedButtonModify() {// TODO: Add your control notification handler code hereCString password;GetDlgItemText(IDC_EDIT_PASSWORD, password);password.Trim();if (password.GetLength() == 0) {AfxMessageBox(TEXT("密码不能为空！"));return;}if (m_user->m_password != password) {m_user->m_password = password;m_core->save(ATM_DB);AfxMessageBox(TEXT("密码修改成功！"));} else {AfxMessageBox(TEXT("请输入新密码！"));}
}void CATMDlg::OnBnClickedButtonIn() {// TODO: Add your control notification handler code hereint money;money = GetDlgItemInt(IDC_EDIT_MONEY);if (money <= 0) {AfxMessageBox(TEXT("请输入存款金额！"));return;}if (m_core->deposit(m_user->m_id, money)) {m_core->save(ATM_DB);SetDlgItemText(IDC_EDIT_MONEY, TEXT(""));SetDlgItemInt(IDC_EDIT_AMOUNT, (int)m_user->m_amount);AfxMessageBox(TEXT("存款成功！请查看余额变化。"));} else {AfxMessageBox(TEXT("存款失败！"));}
}void CATMDlg::OnBnClickedButtonOut() {// TODO: Add your control notification handler code hereint money;money = GetDlgItemInt(IDC_EDIT_MONEY);if (money <= 0) {AfxMessageBox(TEXT("请输入取款金额！"));return;}if (m_core->withdrawal(m_user->m_id, money)) {m_core->save(ATM_DB);SetDlgItemText(IDC_EDIT_MONEY, TEXT(""));SetDlgItemInt(IDC_EDIT_AMOUNT, (int)m_user->m_amount);AfxMessageBox(TEXT("取款成功！请查看余额变化。"));} else {AfxMessageBox(TEXT("取款失败！（可能原因：1 账户余额不足！ 2 ATM机余额不足！ 3 超出单笔取款最大金额！）"));}
}void CATMDlg::OnOK() {// TODO: Add your specialized code here and/or call the base class
}

源码下载

链接：源码下载链接
提取码：1111

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MFC模拟自动取款机

MFC模拟自动取款机

1.问题描述

2.基本要求

3.实现提示

源码预览

源码下载

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