软件基础课程设计报告-C语言(MFC)计算器设计

1、软件基础课程设计报告一、需求分析系统目标 ：设计的计算器至少能够进行简单的四则运算和求倒数 求反以及开方运算。主体功能 ：程序能实现：加，减，乘，除，开方，倒数等运算功 能；还要实现数据的输入，输出，计算，显示及程序退出等功能。另 外还可以实现多种科学计算的功能，如：三角函数的计算，弧度与角 度间的转换，对数指数的计算等。开发环境 ：操作系统： Windows XP编程环境 ：MicrosoftVisual C+ 6.0二、功能说明(1) 包含的功能有：加、减、乘、除运算，开方、求倒数、三角 函数、弧度与角度间的转换、对数指数的计算等功能。(2) 计算器上数字 0 9 为一个控件数组，加、减、

2、乘、除为一个 控件数组，其余为单一的控件。(3) 给对话框添加菜单。(4) 计算功能基本上是用系统内部函数。(5) 程序可以能自动判断输入数据的正确性，保证不出现多于一 个小数点、以 0 开头等不正常现象。(6) “ CE”按钮可以清除所有已输入的数据从头计算，“Back”按钮可以实现退位功能。(7) 能够显示时间、日期。三、详细设计(1)流程图创建工程(创建一 个对话框应用程序)J1r设计对话框界面T设置各控件属性1.Jr为编辑框连接成员变量J为类添加数据成员, 初始化构造函数。(2)编辑资源置计算器classes-*3 CAboutDlg CAboutDlg ()胸 DoDataExcha

3、nge(CDataExchange *pDX) s *CFirstDlg CFirstDlgOnd pParent = XLLL)爸 DoDataExchange(CDataExchange *pDX) b- CMyAppQ CMyApp ()Q InitInstance ()-CMyDlgCMyDlg(CWnd Apparent = NULL)诉 DoDataExchange(CDataExchange *pDX) 附 OnlOdemi ()询 OnBackspace()耸 OnCe ()诉 Oncheng ()诉 Onchu () 谿 Oncos ()On d且()耸 OnDate ()附

4、 Ondengvu ()附 OnDot ()OnExit ()附 OnExp ()OnHelpO险OnlnitDialog()% Onjia ()OnjianO附 Onjiecheng()附 Onlifang ()% OnLn ()卸 Onlog ()附 Onmi ()OnNumO ()陥 OnXuml ()诉 0nXum2 ()% 0nXum3 ()附 0nNum4 ()附 OnXumS ()附 0nNum6 ()附 0nNum7 ()% 0nNum8 ()恥 0nXum9 ()OnPaint ()%Onpingfang()OnQuervDraglcon ()险 OnRadiol ()附 0

5、nRadio2 ()恥 Onsin ()% Onsqrt ()OnSvsCommand(UIXT nID, LPARAI IParam)% On tan ()% OnT ime ()附 Onzhengfu()Q caloDATE0 dotflag0 i0 m_EDIT% m_hlcon0 m_IsDegree0 m_result| 匕 2 numl| i 0 num2* numflag quan2叮 TIMEhi ra nta-CshizhongIi Cshizhong (CWnd *pParent = NULL)附 DoDataExchange(CDataExchange pDX)说OnCr

6、eate (LPCREATESTRLCT IpCreateStruct) 询 OnTimer(UIXT nIDEvent)白3 Globals theApp(3)效果图* DEGREE r RADIANsinSirtl 10x四、程序附录计算器 Dlg.cpp :#include stdafx.h#include 计算器 .h#include 计算器 Dlg.h#include math.h#includeFirstDlg.h#include #define PI 3.14;#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic cha

7、r 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:/ DDX/DDVvirtual void DoDataExc

8、hange(CDataExchange* pDX); support/AFX_VIRTUAL/ Implementation protected:/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(C

9、AboutDlg) /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(CMyDlg)m_result = 0.0;/AFX_DATA_INIT/ Note that LoadIcon does not req

10、uire a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);void CMyDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CMyDlg)DDX_Control(pDX, IDC_EDIT1, m_EDIT);DDX_Text(pDX, IDC_EDIT1, m_result); /AFX_DATA_MAPBEGIN_MESSAGE_MAP(CMyDlg, CDialog)/

11、AFX_MSG_MAP(CMyDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_NUM0, OnNum0)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_CLICKE

12、D(IDC_NUM7, OnNum7)ON_BN_CLICKED(IDC_NUM8, OnNum8)ON_BN_CLICKED(IDC_NUM9, OnNum9)ON_BN_CLICKED(IDC_DOT, OnDot)ON_BN_CLICKED(IDC_CE, OnCe)ON_BN_CLICKED(IDC_jia, Onjia)ON_BN_CLICKED(IDC_jian, Onjian) ON_BN_CLICKED(IDC_cheng, Oncheng) ON_BN_CLICKED(IDC_chu, Onchu) ON_BN_CLICKED(IDC_dengyu, Ondengyu) ON

13、_BN_CLICKED(IDC_daoshu, Ondaoshu) ON_BN_CLICKED(IDC_zhengfu, Onzhengfu) ON_BN_CLICKED(IDC_BACKSPACE, OnBackspace) ON_BN_CLICKED(IDC_Ln, OnLn) ON_BN_CLICKED(IDC_log, Onlog) ON_BN_CLICKED(IDC_RADIO2, OnRadio2) ON_BN_CLICKED(IDC_RADIO1, OnRadio1) ON_BN_CLICKED(IDC_sqrt, Onsqrt) ON_BN_CLICKED(IDC_sin, O

14、nsin) ON_BN_CLICKED(IDC_cos, Oncos) ON_BN_CLICKED(IDC_tan, Ontan) ON_BN_CLICKED(IDC_pingfang, Onpingfang) ON_BN_CLICKED(IDC_lifang, Onlifang) ON_BN_CLICKED(IDC_mi, Onmi) ON_BN_CLICKED(IDC_Exp, OnExp) ON_BN_CLICKED(IDC_10demi, On10demi) ON_BN_CLICKED(IDC_jiecheng, Onjiecheng) ON_COMMAND(ID_TIME, OnTi

15、me) ON_COMMAND(ID_DATE, OnDate) ON_COMMAND(ID_EXIT, OnExit) ON_COMMAND(ID_HELP, OnHelp) /AFX_MSG_MAPEND_MESSAGE_MAP() / CMyDlg message handlersBOOL CMyDlg:OnInitDialog()CDialog:OnInitDialog();/ Add About. menu item to system menu./ IDM_ABOUTBOX must be in the system command range. ASSERT(IDM_ABOUTBO

16、X & 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 dialog SetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m

17、_hIcon, FALSE); / Set small icon/ TODO: Add extra initialization here CheckRadioButton(IDC_RADIO1,IDC_RADIO2,IDC_RADIO1); UpdateData(FALSE);quan2=1; dotflag=0;numflag=0;return TRUE; / return TRUE unless you set the focus to a control void CMyDlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0)

18、 = 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

19、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 = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.W

20、idth() - 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.HCURSOR CMyDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;void CMyDlg:On

21、Num0()UpdateData();if(dotflag)quan2*=10;m_result+=0/(double)quan2; elseif(numflag)m_result=m_result*10+0;else m_result=0;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum1()UpdateData();if(dotflag)quan2*=10;m_result+=1/(double)quan2;elseif(numflag)m_result=m_result*10+1;else m_result=1;numflag=1;UpdateD

22、ata(FALSE);void CMyDlg:OnNum2()UpdateData();if(dotflag)quan2*=10;m_result+=2/(double)quan2;elseif(numflag)m_result=m_result*10+2;else m_result=2;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum3()UpdateData();if(dotflag)quan2*=10;m_result+=3/(double)quan2;elseif(numflag)m_result=m_result*10+3;else m_re

23、sult=3;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum4()UpdateData();if(dotflag)quan2*=10;m_result+=4/(double)quan2;elseif(numflag)m_result=m_result*10+4;else m_result=4;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum5()UpdateData();if(dotflag)quan2*=10;m_result+=5/(double)quan2; elseif(numflag)m_resul

24、t=m_result*10+5;else m_result=5;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum6()UpdateData();if(dotflag)quan2*=10;m_result+=6/(double)quan2;elseif(numflag)m_result=m_result*10+6;else m_result=6;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum7()UpdateData();if(dotflag)quan2*=10;m_result+=7/(double)quan

25、2;elseif(numflag)m_result=m_result*10+7;else m_result=7;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum8()UpdateData();if(dotflag)quan2*=10;m_result+=8/(double)quan2;elseif(numflag)m_result=m_result*10+8;else m_result=8;numflag=1;UpdateData(FALSE);void CMyDlg:OnNum9()UpdateData(); if(dotflag) quan2*=1

26、0; m_result+=9/(double)quan2;elseif(numflag) m_result=m_result*10+9;else m_result=9;numflag=1;UpdateData(FALSE);void CMyDlg:OnDot() UpdateData(); dotflag=1;m_result+=0.0; UpdateData(FALSE);void CMyDlg:OnCe()UpdateData(); m_EDIT.SetSel(0,-1); m_EDIT.ReplaceSel();m_result=0;num1=0;num2=0; numflag=0;do

27、tflag=0;quan2=1;UpdateData(FALSE); void CMyDlg:Onjia() UpdateData(); num1=m_result; cal=+;numflag=0;dotflag=0;quan2=1;void CMyDlg:Onjian() UpdateData();num1=m_result; cal=-;numflag=0;dotflag=0;quan2=1;void CMyDlg:Oncheng() UpdateData(); num1=m_result;cal=*;numflag=0;dotflag=0;quan2=1;void CMyDlg:Onc

28、hu() UpdateData(); num1=m_result; cal=/;numflag=0;dotflag=0;quan2=1;void CMyDlg:Ondengyu()UpdateData();num2=m_result;switch(cal)case+:m_result=num1+num2;break; case-:m_result=num1-num2;break; case*:m_result=num1*num2;break; case/:m_result=num1/num2;break; casex:m_result=pow(num1,num2);break;numflag=

29、0;dotflag=0;quan2=1;UpdateData(FALSE);void CMyDlg:Ondaoshu() UpdateData();m_result=1/m_result;numflag=0;dotflag=0;quan2=1;UpdateData(FALSE);void CMyDlg:Onzhengfu()UpdateData();m_result=0-m_result;UpdateData(FALSE);void CMyDlg:OnBackspace() UpdateData();static int dotquan=quan2; long temp; if(dotflag

30、&numflag) if(dotquan=10)temp=(long)(m_result*dotquan);m_result=(double)(temp/10);dotquan/=10;m_result=m_result/dotquan;else/UpdateData();if(numflag&m_result)m_result=(long)m_result/10;UpdateData(FALSE);void CMyDlg:OnLn()UpdateData();m_result=log(m_result);numflag=0;dotflag=0;quan2=1;UpdateData(FALSE

31、);void CMyDlg:Onlog()UpdateData();m_result=log(m_result)/log(10);numflag=0;dotflag=0;quan2=1;UpdateData(FALSE);void CMyDlg:OnRadio2()m_IsDegree=1;i=1;UpdateData(TRUE);void CMyDlg:OnRadio1()m_IsDegree=0;i=(2*3.1415926)/360;UpdateData(FALSE);void CMyDlg:Onsqrt()UpdateData();if(m_result0)MessageBox (输入无效！);return;m_result = sqrt(m_result);UpdateData(FALSE);void CMyDlg:Onsin()m_result=sin(