C++課程設(shè)計(jì)檢測版 2

1、C+課程設(shè)計(jì)報告（2013）面向?qū)ο蟪绦蛟O(shè)計(jì)（VC+）課程設(shè)計(jì)報告題目：基于MFC的科學(xué)計(jì)算器設(shè)計(jì)與實(shí)現(xiàn)班級：軟件工程12-02 姓名：于佳輝 組長：常明鑫 成員：常明鑫 于雷鳴 于佳輝 郭大銘 時間：2013-6-27 地點(diǎn)：實(shí)驗(yàn)1#101 1計(jì)算器的設(shè)計(jì)與實(shí)現(xiàn)1課程設(shè)計(jì)內(nèi)容課題名稱：計(jì)算器的實(shí)現(xiàn)說明：實(shí)現(xiàn)一個計(jì)算器。要求： 1）用“計(jì)算器”的標(biāo)準(zhǔn)視圖執(zhí)行簡單的計(jì)算。2）用其科學(xué)型視圖執(zhí)行簡易的科學(xué)計(jì)算。2 系統(tǒng)需求分析2.1 系統(tǒng)目標(biāo)我們在學(xué)習(xí)生活中，常會遇到一些繁雜的數(shù)值運(yùn)算，這時候我們就必須用到科學(xué)計(jì)算器，所以便著手開發(fā)了這個計(jì)算器程序，以便用于自己的學(xué)習(xí)工作。要計(jì)算功能有以下幾個方面

2、：加法，減法，乘法，除法。2.2 主體功能1. 十進(jìn)制數(shù)的加、減、乘、除等簡單計(jì)算。2. 界面設(shè)有清空按鈕，方便使用。2.3 開發(fā)環(huán)境VC+ 6.03 系統(tǒng)概要設(shè)計(jì)3.1 系統(tǒng)功能劃分表3-1 系統(tǒng)功能表序號文件名主要功能備注1+加法求和兩個操作數(shù)2-減法求差兩個操作數(shù)3*乘法求積兩個操作數(shù)4/除法求商兩個操作數(shù) 假設(shè)執(zhí)行操作“+”，先輸入一個數(shù)，再輸入“+”，再輸入另一個數(shù)，最后輸入“+”。整個功能“+”就執(zhí)行完畢。附錄1 源程序清單/ 計(jì)算器Dlg.cpp : implementation file/#include stdafx.h#include 計(jì)算器.h#include 計(jì)算器Dl

3、g.h#include#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DATA(CAboutDlg)enum IDD = IDD_ABOUTBOX ;/AFX_DATA/ ClassWizard generated virtual function overri

4、des/AFX_VIRTUAL(CAboutDlg)protected:virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:/AFX_MSG(CAboutDlg)/AFX_MSGDECLARE_MESSAGE_MAP();CAboutDlg:CAboutDlg() : CDialog(CAboutDlg:IDD)/AFX_DATA_INIT(CAboutDlg)/AFX_DATA_INITvoid CAboutDlg:DoDataExcha

5、nge(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CAboutDlg)/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CAboutDlg, CDialog)/AFX_MSG_MAP(CAboutDlg)/ No message handlers/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMyDlg dialogCMyDlg:CMyDlg(CWnd* pParent /*=NULL*/): CDialog(CMyDlg:IDD, pParent)/AFX_DATA_INIT(CMyD

6、lg)m_number1 = 0.0;m_number2 = 0.0;m_result = 0.0;/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);void CMyDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CMyDlg)DDX_Control(pDX, IDC_EDI

7、T3, m_CResult);DDX_Text(pDX, IDC_EDIT1, m_number1);DDX_Text(pDX, IDC_EDIT2, m_number2);DDX_Text(pDX, IDC_EDIT3, m_result);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CMyDlg, CDialog)/AFX_MSG_MAP(CMyDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)ON_EN_CHANGE(IDC_EDIT

8、2, OnChangeEdit2)ON_EN_CHANGE(IDC_EDIT3, OnChangeEdit3)ON_BN_CLICKED(IDC_BUTTON9, OnButton9)ON_BN_CLICKED(IDC_BUTTON8, OnButton8)ON_BN_CLICKED(IDC_BUTTON7, OnButton7)ON_BN_CLICKED(IDC_BUTTON6, OnButton6)ON_BN_CLICKED(IDC_BUTTON5, OnButton5)ON_BN_CLICKED(IDC_BUTTON4, OnButton4)ON_BN_CLICKED(IDC_BUTTO

9、N3, OnButton3)ON_BN_CLICKED(IDC_BUTTON2, OnButton2)ON_BN_CLICKED(IDC_BUTTON1, OnButton1)ON_BN_CLICKED(IDC_BUTTON0, OnButton0)ON_BN_CLICKED(IDC_BUTTONjia, OnBUTTONjia)ON_BN_CLICKED(IDC_BUTTONjian, OnBUTTONjian)ON_BN_CLICKED(IDC_BUTTONcheng, OnBUTTONcheng)ON_BN_CLICKED(IDC_BUTTONchu, OnBUTTONchu)ON_EN

10、_SETFOCUS(IDC_EDIT1, OnSetfocusEdit1)ON_EN_SETFOCUS(IDC_EDIT2, OnSetfocusEdit2)ON_BN_CLICKED(IDC_BUTTONresult, OnBUTTONresult)ON_BN_CLICKED(IDC_BUTTON10, OnButton10)/AFX_MSG_MAPEND_MESSAGE_MAP()BOOL CMyDlg:OnInitDialog()CDialog:OnInitDialog();/ Add About. menu item to system menu./ IDM_ABOUTBOX must

11、 be in the system command range.ASSERT(IDM_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX AppendMenu(MF_SEPARATOR);pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the applications main window is not a dial

12、ogSetIcon(m_hIcon, true);/ Set big iconSetIcon(m_hIcon, false);/ Set small icon/ TODO: Add extra initialization herereturn true; / return true unless you set the focus to a controlint nEditFlag=0;void CMyDlg:OnLButtonDown(UINT nFlags, CPoint point)this-SetFocus();nEditFlag=0;CDialog:OnLButtonDown(nF

13、lags,point);void CMyDlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0) = IDM_ABOUTBOX)CAboutDlg dlgAbout;dlgAbout.DoModal();elseCDialog: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 docu

14、ment/view model,/ this is automatically done for you by the framework.void CMyDlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);/ Center icon in client rectangleint cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon =

15、 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);elseCRect rc;GetClientRect( &rc );CPaintDC dc(this);dc.FillSolidRect(&rc, RGB(255,235,205); CDialog:OnPaint(); / The

16、 system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CMyDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;void CMyDlg:OnChangeEdit1() /nEditFlag=1;/ TODO: If this is a RICHEDIT control, the control will not/ send this notification unless you override the

17、CDialog:OnInitDialog()/ function and call CRichEditCtrl().SetEventMask()/ with the ENM_CHANGE flag ORed into the mask./ TODO: Add your control notification handler code herevoid CMyDlg:OnChangeEdit2() / TODO: If this is a RICHEDIT control, the control will not/ send this notification unless you over

18、ride the CDialog:OnInitDialog()/ function and call CRichEditCtrl().SetEventMask()/ with the ENM_CHANGE flag ORed into the mask./ TODO: Add your control notification handler code here/nEditFlag=2;void CMyDlg:OnChangeEdit3() / TODO: If this is a RICHEDIT control, the control will not/ send this notifi

19、cation unless you override the CDialog:OnInitDialog()/ function and call CRichEditCtrl().SetEventMask()/ with the ENM_CHANGE flag ORed into the mask./ TODO: Add your control notification handler code here數(shù)字按鈕：void CMyDlg:OnButton1() UpdateData(true);/將關(guān)聯(lián)變量的值更新到控件顯示if (nEditFlag=1)if (point_num=1) te

20、mp1=m_number1;m_number1=(1/pow(float)10,pointnum); m_number1=temp1+m_number1; pointnum=pointnum+1;elsem_number1=m_number1*10+1;else if(nEditFlag=2)if (point_num=1) temp1=m_number2;m_number2=(1/pow(float)10,p_pointnum); m_number2=temp1+m_number2; p_pointnum=p_pointnum+1;else m_number2=m_number2*10+1;

21、UpdateData(false);/ TODO: Add your control notification handler code here加法：void CMyDlg:OnBUTTONjia() UpdateData();double n_result;n_result=m_number1+m_number2;m_result=n_result;char sz20;sprintf(sz,%f,n_result);m_CResult.SetWindowText(sz);/SetWindowText是一個Windows API函數(shù)。該函數(shù)改變指定窗口的標(biāo)題欄的文本內(nèi)容/ TODO: Add

22、 your control notification handler code here減法：void CMyDlg:OnBUTTONjian() UpdateData();double n_result;n_result=m_number1-m_number2;m_result=n_result;char sz20;sprintf(sz,%f,n_result);m_CResult.SetWindowText(sz);/ TODO: Add your control notification handler code here乘法：void CMyDlg:OnBUTTONcheng() Up

23、dateData();double n_result;n_result=m_number1*m_number2;m_result=n_result;char sz20;sprintf(sz,%f,n_result);m_CResult.SetWindowText(sz);/ TODO: Add your control notification handler code here除法：void CMyDlg:OnBUTTONchu() UpdateData();double n_result;n_result=m_number1/m_number2;m_result=n_result;char sz20;sprintf(sz,%f,n_result);m_CResult.SetWindowText(sz);/ TODO: Add your control notification handler code here第一個輸入框：void CMyDlg:OnSetfocusEdit1() nEditFla