实现了在vc中可视化的计算器工功能.对于实时输出显示等做了优化.代码简洁..

// calcDlg.cpp : implementation file // #include "stdafx.h" #include "calc.h" #include "calcDlg.h" #include "MYECHO.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: 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 // Implementation protected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CCalcDlg dialog CCalcDlg::CCalcDlg(CWnd* pParent /*=NULL*/) : CDialog(CCalcDlg::IDD, pParent) { //{{AFX_DATA_INIT(CCalcDlg) m_echo = _T(""); fuhao=0; dnum=0.0; dnum2=0.0; m_echo=""; stemp=""; stempjisuan=""; pointlabel=true; golabel=true; //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CCalcDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CCalcDlg) DDX_Control(pDX, IDC_ECHO, m_myecho); DDX_Text(pDX, IDC_ECHO, m_echo); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CCalcDlg, CDialog) //{{AFX_MSG_MAP(CCalcDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_NUM1, OnNum1) ON_BN_CLICKED(IDC_NUM2, OnNum2) ON_BN_CLICKED(IDC_NUM3, OnNum3) ON_BN_CLICKED(IDC_NUM4, OnNum4) ON_BN_CLICKED(IDC_NUM5, OnNum5) ON_BN_CLICKED(IDC_NUM6, OnNum6) ON_BN_CLICKED(IDC_NUM7, OnNum7) ON_BN_CLICKED(IDC_NUM8, OnNum8) ON_BN_CLICKED(IDC_NUM9, OnNum9) ON_BN_CLICKED(IDC_NUM0, OnNum0) ON_BN_CLICKED(IDC_CTPOINT, OnCtpoint) ON_BN_CLICKED(IDC_CTJIA, OnCtjia) ON_BN_CLICKED(IDC_CTJIAN, OnCtjian) ON_BN_CLICKED(IDC_CTCHEN, OnCtchen) ON_BN_CLICKED(IDC_CTCHU, OnCtchu) ON_BN_CLICKED(IDC_CTCLEAN, OnCtclean) ON_BN_CLICKED(IDC_CTGO, OnCtgo) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CCalcDlg message handlers BOOL CCalcDlg::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 < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); 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 dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // TODO: Add extra initialization here return TRUE; // return TRUE unless you set the focus to a control } void CCalcDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::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 CCalcDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int 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 icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. HCURSOR CCalcDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CCalcDlg::OnNum1() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="1"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="1"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum2() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="2"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="2"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum3() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="3"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="3"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum4() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="4"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="4"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum5() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="5"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="5"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum6() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="6"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="6"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum7() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="7"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="7"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum8() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="8"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="8"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum9() { // TODO: Add your control notification handler code here if (true==golabel) { stemp="9"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } else { OnCtclean(); stemp="9"; m_echo=m_echo+stemp; m_myecho.setstr(m_echo); UpdateData(false); } } void CCalcDlg::OnNum0() { // TODO: Add your control notification handler code here UpdateData(); if (""==m_echo) { stemp="0."; m_echo=m_echo+stemp; m_myecho.setstr(