c語言程序知識教學(xué)設(shè)計書(編輯修改稿)
2025-07-23 11:47 本頁面
【文章內(nèi)容簡介】 Rectrect。m_pMarkGetWindowRect(rect)。rcStandard=rcSentific。=+5。m_bIsExpand=0。m_sentific=1。OnStandard()。m_result=0.。m_isDegree=1。UpdateData(FALSE)。returnTRUE。//returnTRUEunlessyousetthefocustoacontrol}voidCCalculatorDlg::OnSysCommand(UINTnID,LPARAMlParam){if((nIDamp。0xFFF0)==IDM_ABOUTBOX){CAboutDlgdlgAbout。()。}else{CDialog::OnSysCommand(nID,lParam)。}}//Ifyouaddaminimizebuttontoyourdialog,youwillneed thecodebelow//todrawtheMFCapplicationsusingthedocument/vi//thisisautomaticallydoneforyoubytheframework.voidCCalculatorDlg::OnPaint(){if(IsIconic()){CPaintDCdc(this)。//devicecontextforpaintingSendMessage(WM_ICONERASEBKGND,(WPARAM)(),0)。//CentericoninclientrectangleintcxIcon=GetSystemMetrics(SM_CXICON)。int cyIcon=GetSystemMetrics(SM_CYICON)。CRectrect。GetClientRect(amp。rect)。int x=(()cxIcon+1)/2。inty=(()cyIcon+1)/2。//Draw the icon (x,y,m_hIcon)。}else{CDialog::OnPaint()。}}//Thesystemcallsthistoobtainthecursortodisplaywhiletheuserdrags//theminimizedwindow.HCURSORCCalculatorDlg::OnQueryDragIcon(){return(HCURSOR)m_hIcon}voidCCalculatorDlg::OnOperandInput(UINTnID){ASSERT(nID=IDC_0amp。amp。nID=IDC_9)。if(m_errorState!=ErrNone)return。if(m_func!=FuncNone){m_func=FuncNone。Calculate()。}if(!m_bOperandAvail)m_operand=0。if(!m_bCoff)m_operand=m_operand*10+(nIDIDC_0)。else{m_operand=m_operand+(nIDIDC_0)*m_coff。m_coff*=。}m_bOperandAvail=TRUE。UpdateDisplay()。}voidCCalculatorDlg::Calculate(){if(m_errorState!=ErrNone)return。if(m_bOperandAvail){if(m_operator==OpNone)m_accum=m_operand。elseif(m_operator==OpMultiply)m_accum*=m_operand。elseif(m_operator==OpDivide){if(m_operand==0)m_errorState=ErrDivideByZero。elsem_accum/=m_operand。}elseif(m_operator==OpAdd)m_accum+=m_operand。elseif(m_operator==OpSubtract) m_accum=m_operand。}m_bOperandAvail=FALSE。m_bCoff=0。m_coff=。UpdateDisplay()。}voidCCalculatorDlg::UpdateDisplay(){if(GetSafeHwnd()==NULL)return。if(m_errorState!=ErrNone)m_result=余數(shù)不能為0。else{floatlVal=(m_bOperandAvail)?m_operand:m_accum。(_T(%f),lVal)。inti=()。while((i1)==39。039。){(i1,1)。i=1。}}UpdateData(FALSE)。}BOOLCCalculatorDlg::Keyboard(LPCTSTRszButton){switch(szButton[0]){case 39。c39。:case39。C39。:OnClear()。break。case39。/39。:OnDivid()。break。case39。+39。:OnAdd()。break。case39。39。:OnMinus()。break。case39。*39。:OnMultiply()。break。case39。=39。:OnEqual()。break。default:if(szButton[0]=39。039。amp。amp。szBut
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