简单计算器代码(MFC).docx

/ changjiangDlg.cpp : implementation file/#include stdafx.h#include changjiang.h#include changjiangDlg.h#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 overrides/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:DoDataExchange(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()/ CChangjiangDlg dialogCChangjiangDlg:CChangjiangDlg(CWnd* pParent /*=NULL*/): CDialog(CChangjiangDlg:IDD, pParent)/AFX_DATA_INIT(CChangjiangDlg)xianshi = _T();/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);void CChangjiangDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CChangjiangDlg)DDX_Text(pDX, IDC_EDIT1, xianshi);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CChangjiangDlg, CDialog)/AFX_MSG_MAP(CChangjiangDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()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_BUTTON7, OnButton7)ON_BN_CLICKED(IDC_BUTTON12, OnButton12)ON_BN_CLICKED(IDC_BUTTON5, OnButton5)ON_BN_CLICKED(IDC_BUTTON8, OnButton8)ON_BN_CLICKED(IDC_BUTTON14, OnButton14)ON_BN_CLICKED(IDC_BUTTON6, OnButton6)ON_BN_CLICKED(IDC_BUTTON9, OnButton9)ON_BN_CLICKED(IDC_BUTTON16, OnButton16)ON_BN_CLICKED(IDC_BUTTON10, OnButton10)ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)ON_BN_CLICKED(IDC_BUTTON17, OnButton17)ON_BN_CLICKED(IDC_BUTTON15, OnButton15)ON_BN_CLICKED(IDC_BUTTON13, OnButton13)ON_BN_CLICKED(IDC_BUTTON18, OnButton18)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CChangjiangDlg message handlersBOOL CChangjiangDlg:OnInitDialog()CDialog: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 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 dialogSetIcon(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 controlvoid CChangjiangDlg: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 document/view model,/ this is automatically done for you by the framework.void CChangjiangDlg: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 = 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();/ The system calls this to obtain the cursor to display while the user drags/ the minimized window.CChangjiangDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;double data_x = 0,data_y = 0;int flag = 0;void CChangjiangDlg:OnButton1() xianshi += 7;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton2() xianshi += 8;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton3() xianshi += 9;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton4() xianshi += 4;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton7() xianshi += 5;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton12() xianshi += 6;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton5() xianshi += 1;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton8() xianshi += 2;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton14() xianshi += 3;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton6() xianshi += 0;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton9() xianshi += .;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton16() char str30;strcpy(str,(LPSTR)(LPCTSTR)xianshi);data_x = atof(str);flag = 1;xianshi = ;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnButton10() char str30;strcpy(str,(LPSTR)(LPCTSTR)xianshi);data_y = atof(str);double ans = 0;switch(flag)case 1: ans = data_x + data_y;break;case 2:ans = data_x - data_y;break;case 3:ans = data_x * data_y;break;case 4:if(data_y != 0)ans = data_x / data_y;break;char S20;gcvt(ans,15,S);xianshi = S;UpdateData(FALSE);/ TODO: Add your control notification handler code herevoid CChangjiangDlg:OnChangeEdit1() UpdateData(TRUE);/ TODO: If this is a RICHEDIT control, the control will not/ send this notification 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 herevoid CChangjiangDlg:OnButton17() char str30;strc