vc中用MFC編寫計(jì)算器代碼

1、/ CKcalculateDlg.cpp : implementation file/#include "stdafx.h"#include "math.h"#include "CKcalculate.h"#include "CKcalculateDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/double m_first;/存儲一次運(yùn)算的第一個(gè)操作數(shù)及一次運(yùn)算的結(jié)果/ dou

2、ble m_second; /存儲一次運(yùn)算的第二個(gè)操作數(shù)/CString m_operator;/存儲運(yùn)算符/double m_coff;/存儲小數(shù)點(diǎn)的系數(shù)權(quán)值/ CAboutDlg dialog used for App About/class CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DATA(CAboutDlg)enum IDD = IDD_ABOUTBOX ;/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(C

3、AboutDlg)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:DoDataExchange(CDataExchange

4、* 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()/ CCKcalculateDlg dialogCCKcalculateDlg:CCKcalculateDlg(CWnd* pParent /*=NULL*/): CDialog(CCKcalculateDlg:IDD, pParent)

5、/void UpdateDisplay(double);/void Calculate(void);/AFX_DATA_INIT(CCKcalculateDlg)/isXdeY=false;m_display = _T("");m_first=0.0;m_second=0.0;m_operator=_T("+");m_coff=0;m_display=_T("0.0");/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win

6、32m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);void CCKcalculateDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CCKcalculateDlg)DDX_Text(pDX, IDC_DISPLAY, m_display);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CCKcalculateDlg, CDialog)/AFX_MSG_MAP(CCKcalculateDlg)ON_WM_SYSCOM

7、MAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_BUTTON0, OnButton0)ON_BN_CLICKED(IDC_BUTTON1, OnButton1)ON_BN_CLICKED(IDC_BUTTON2, OnButton2)ON_BN_CLICKED(IDC_BUTTON3, OnButton3)ON_BN_CLICKED(IDC_BUTTON4, OnButton4)ON_BN_CLICKED(IDC_BUTTON5, OnButton5)ON_BN_CLICKED(IDC_BUTTON6, OnButton6)O

8、N_BN_CLICKED(IDC_BUTTON7, OnButton7)ON_BN_CLICKED(IDC_BUTTON8, OnButton8)ON_BN_CLICKED(IDC_BUTTON9, OnButton9)ON_BN_CLICKED(IDC_BUTTON_ADD, OnButtonAdd)ON_BN_CLICKED(IDC_BUTTON_MINUS, OnButtonMinus)ON_BN_CLICKED(IDC_BUTTON_MUTIPLY, OnButtonMutiply)ON_BN_CLICKED(IDC_BUTTON_DIV, OnButtonDiv)ON_BN_CLIC

9、KED(IDC_BUTTON_SIGH, OnButtonSigh)ON_BN_CLICKED(IDC_BUTTON_POINT, OnButtonPoint)ON_BN_CLICKED(IDC_BUTTON_CLEAR, OnButtonClear)ON_BN_CLICKED(IDC_BUTTON_SQRT, OnButtonSqrt)ON_BN_CLICKED(IDC_BUTTON_RECI, OnButtonReci)ON_BN_CLICKED(IDC_BUTTON_EQUAL, OnButtonEqual)ON_BN_CLICKED(IDC_BUTTON_SIN, OnButtonSi

10、n)ON_BN_CLICKED(IDC_BUTTON_COS, OnButtonCos)ON_BN_CLICKED(IDC_BUTTON_LOG, OnButtonLog)ON_BN_CLICKED(IDC_BUTTON_XDEY, OnButtonXdeY)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CCKcalculateDlg message handlers/BOOL CCKcalculateDlg:OnInitDialog()CDialog:OnInitDialog();/ Add "About." menu item to system men

11、u./ 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 != NULL)CString strAboutMenu;strAboutMenu.LoadString(IDS_ABOUTBOX);if (!strAboutMenu.IsEmpty()pSysMenu->Appen

12、dMenu(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 SetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/ TODO: Add extra ini

13、tialization herereturn TRUE; / return TRUE unless you set the focus to a controlvoid CCKcalculateDlg: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, yo

14、u 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 CCKcalculateDlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(),

15、 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);elseCDialog:OnPaint();

16、/ The system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CCKcalculateDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;/按鍵代碼/void CCKcalculateDlg:OnButton0() / TODO: Add your control notification handler code hereonButtonN(0);void CCKcalculateDlg:OnButto

17、n1() / TODO: Add your control notification handler code hereonButtonN(1);void CCKcalculateDlg:OnButton2() / TODO: Add your control notification handler code hereonButtonN(2);void CCKcalculateDlg:OnButton3() / TODO: Add your control notification handler code hereonButtonN(3);void CCKcalculateDlg:OnBu

18、tton4() / TODO: Add your control notification handler code hereonButtonN(4);void CCKcalculateDlg:OnButton5() / TODO: Add your control notification handler code hereonButtonN(5);void CCKcalculateDlg:OnButton6() / TODO: Add your control notification handler code hereonButtonN(6);void CCKcalculateDlg:O

19、nButton7() / TODO: Add your control notification handler code hereonButtonN(7);void CCKcalculateDlg:OnButton8() / TODO: Add your control notification handler code hereonButtonN(8);void CCKcalculateDlg:OnButton9() / TODO: Add your control notification handler code hereonButtonN(9);/計(jì)算按鍵代碼/void CCKcal

20、culateDlg:OnButtonAdd() / TODO: Add your control notification handler code hereCalculate();m_operator="+"void CCKcalculateDlg:OnButtonMinus() / TODO: Add your control notification handler code hereCalculate();m_operator="-"void CCKcalculateDlg:OnButtonMutiply() / TODO: Add your c

21、ontrol notification handler code hereCalculate();m_operator="*"void CCKcalculateDlg:OnButtonDiv() / TODO: Add your control notification handler code hereCalculate();m_operator="/"void CCKcalculateDlg:OnButtonSigh() / TODO: Add your control notification handler code herem_second=-

22、m_second; UpdateDisplay(m_second);void CCKcalculateDlg:OnButtonPoint() / TODO: Add your control notification handler code herem_coff =0.1;void CCKcalculateDlg:OnButtonClear() / TODO: Add your control notification handler code herem_first=0.0;m_second=0.0;m_operator="+"m_coff = 1.0;UpdateDi

23、splay(0.0);void CCKcalculateDlg:OnButtonSqrt() / TODO: Add your control notification handler code hereif( m_second=0 )m_first=sqrt(m_first);UpdateDisplay(m_first);else m_second=sqrt(m_second);UpdateDisplay(m_second); void CCKcalculateDlg:OnButtonReci() / TODO: Add your control notification handler c

24、ode hereif( fabs(m_second ) < 0.000001 && fabs( m_first )<0.000001)m_display="除數(shù)不能為零"UpdateDisplay(false);return;if( fabs(m_second ) < 0.000001)m_first=1.0/m_first;UpdateDisplay(m_first);elsem_second=1.0/m_second;UpdateDisplay(m_second);void CCKcalculateDlg:OnButtonEqual()

25、 / TODO: Add your control notification handler code hereXdeY();Calculate();void CCKcalculateDlg:UpdateDisplay(double ck)m_display.Format(_T("%f"),ck);int i=m_display.GetLength();/格式化輸出,將輸出結(jié)果后的零截去while(m_display.GetAt(i-1)='0') m_display.Delete(i-1,1);i-;/更新編輯框變量m_displayUpdateData(

26、false); void CCKcalculateDlg:Calculate(void)/將前一次數(shù)據(jù)與當(dāng)前數(shù)據(jù)進(jìn)行運(yùn)算，作為下次的第一操作數(shù)，并在編輯框顯示switch(m_operator.GetAt(0)case '+': m_first+=m_second;break;case '-': m_first-=m_second;break;case '*': m_first*=m_second;break;case '/':if( fabs(m_second ) <= 0.000001)m_display="除

27、數(shù)不能為0"UpdateData(false);return;m_first/=m_second;break;m_second=0.0;m_coff=1.0;m_operator=_T("+");/更新編輯框顯示內(nèi)容UpdateDisplay(m_first);void CCKcalculateDlg:onButtonN(int n)if(m_coff=1.0)/作為整數(shù)輸入數(shù)字時(shí)m_second=m_second*10+n;else/作為小數(shù)輸入數(shù)字m_second=m_second+n*m_coff;m_coff*=0.1; /更新編輯框的數(shù)字顯示Update

28、Display(m_second);void CCKcalculateDlg:OnButtonSin() / TODO: Add your control notification handler code herem_second=m_second*m_PI/180;m_second=sin(m_second);UpdateDisplay(m_second);void CCKcalculateDlg:OnButtonCos() / TODO: Add your control notification handler code herem_second=m_second*m_PI/180;m

29、_second=cos(m_second);UpdateDisplay(m_second);void CCKcalculateDlg:OnButtonLog() / TODO: Add your control notification handler code herem_second=log10(m_second);UpdateDisplay(m_second);void CCKcalculateDlg:OnButtonXdeY() / TODO: Add your control notification handler code heretemp=m_second;m_second=0

30、.0; UpdateDisplay(m_second); isXdeY=true;void CCKcalculateDlg:XdeY()if(isXdeY)m_second=m_second;m_second=pow(temp,m_second);/以下是CKcalculateDlg.h代碼/ /CKcalculateDlg.h : header file/#if !defined(AFX_CKCALCULATEDLG_H_8DEB211E_CFCF_44C8_895C_BEF4E77EBE6C_INCLUDED_)#define AFX_CKCALCULATEDLG_H_8DEB211E_C

31、FCF_44C8_895C_BEF4E77EBE6C_INCLUDED_#if _MSC_VER > 1000#pragma once#endif / _MSC_VER > 1000/ CCKcalculateDlg dialogclass CCKcalculateDlg : public CDialog / Constructionpublic:void XdeY(void);bool isXdeY;double temp;double m_PI;void onButtonN(int n);void UpdateDisplay(double ck);void Calculate(

32、);CCKcalculateDlg(CWnd* pParent = NULL);/ standard constructor/ Dialog Data/AFX_DATA(CCKcalculateDlg)enum IDD = IDD_CKCALCULATE_DIALOG ;CStringm_display;/AFX_DATAdouble m_first;/存儲一次運(yùn)算的第一個(gè)操作數(shù)及一次運(yùn)算的結(jié)果double m_second;/存儲一次運(yùn)算的第二個(gè)操作數(shù)CString m_operator;/存儲運(yùn)算符double m_coff;/存儲小數(shù)點(diǎn)的系數(shù)權(quán)值/ ClassWizard generated virtual function overrides/ AFX_VIRTUAL(CCKcalculateDlg)protected:virtual void DoDataExchange(CDataExchange* pDX);/ DDX/DDV support/AFX_VIRTUAL/ Implementationprotecte