1、軟件基礎課程設計報告 一、需求分析系統目標：設計的計算器至少能夠進行簡單的四則運算和求倒數求反以及開方運算。主體功能：程序能實現：加，減，乘，除，開方，倒數等運算功能；還要實現數據的輸入，輸出，計算，顯示及程序退出等功能。另外還可以實現多種科學計算的功能，如：三角函數的計算，弧度與角度間的轉換，對數指數的計算等。開發環境：操作系統：Windows XP編程環境：MicrosoftVisualC+6.0 二、功能說明(1)包含的功能有：加、減、乘、除運算，開方、求倒數、三角函數、弧度與角度間的轉換、對數指數的計算等功能。(2)計算器上數字09為一個控件數組，加、減、乘、除為一個控件數組，其余為單

2、一的控件。(3)給對話框添加菜單。(4)計算功能基本上是用系統內部函數。(5)程序可以能自動判斷輸入數據的正確性，保證不出現多于一個小數點、以0開頭等不正常現象。(6)“CE”按鈕可以清除所有已輸入的數據從頭計算，“Back”按鈕可以實現退位功能。（7）能夠顯示時間、日期。三、詳細設計（1）流程圖創建工程（創建一個對話框應用程序）設計對話框界面設置各控件屬性為編輯框連接成員變量為類添加數據成員，初始化構造函數。為所有按鈕添加事件對類添加成員函數（更新編輯框）并進行實現實現對各按鈕事件的實現（2）編輯資源（3）效果圖四、程序附錄計算器Dlg.cpp :#include "stdafx.

3、h"#include "計算器.h"#include "計算器Dlg.h"#include "math.h"#include"FirstDlg.h"#include <windows.h> #define PI 3.14;#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDl

4、g : 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(

5、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)/

6、 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 require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRA

7、ME);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)/AFX_MSG_MAP(CMyDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICK

8、ED(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_CLICKED(IDC_NUM7, OnNum7)ON_BN_CLICKED(IDC_NUM8, OnNum8)ON_BN_CLICKED(IDC_NUM9, OnNum9)O

9、N_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_BN_CLICKED(IDC_daoshu, Ondaoshu)ON_BN_CLICKED(IDC_zhengfu, Onzhengfu)ON_BN_CLICKED(ID

10、C_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, Onsin)ON_BN_CLICKED(IDC_cos, Oncos)ON_BN_CLICKED(IDC_tan, Ontan)ON_BN_CLICKED(IDC_pingfang, Onp

11、ingfang)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, OnTime)ON_COMMAND(ID_DATE, OnDate)ON_COMMAND(ID_EXIT, OnExit)ON_COMMAND(ID_HELP, OnHelp)/AFX_MSG_MAPEND_MES

12、SAGE_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_ABOUTBOX & 0xFFF0) = IDM_ABOUTBOX);ASSERT(IDM_ABOUTBOX < 0xF000);CMenu* pSysMenu = GetSystemMenu(

13、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 appli

14、cation's main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/ TODO: Add extra initialization hereCheckRadioButton(IDC_RADIO1,IDC_RADIO2,IDC_RADIO1);UpdateData(FALSE); quan2=1; dotflag=0; numflag=0; return TRUE; / return TRUE unless you set the

15、 focus to a controlvoid CMyDlg: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 usi

16、ng the document/view model,/ this is automatically done for you by the framework.void 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);i

17、nt 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/ t

18、he minimized window.HCURSOR CMyDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;void CMyDlg:OnNum0() 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_re

19、sult+=1/(double)quan2;elseif(numflag)m_result=m_result*10+1;else m_result=1; numflag=1;UpdateData(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

20、();if(dotflag)quan2*=10;m_result+=3/(double)quan2;elseif(numflag)m_result=m_result*10+3;else m_result=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);voi

21、d CMyDlg:OnNum5() UpdateData();if(dotflag)quan2*=10;m_result+=5/(double)quan2;elseif(numflag)m_result=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; num

22、flag=1;UpdateData(FALSE);void CMyDlg:OnNum7() UpdateData();if(dotflag)quan2*=10;m_result+=7/(double)quan2;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_resu

23、lt*10+8;else m_result=8; numflag=1;UpdateData(FALSE);void CMyDlg:OnNum9() UpdateData();if(dotflag)quan2*=10;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 CMy

24、Dlg:OnCe() UpdateData();m_EDIT.SetSel(0,-1);m_EDIT.ReplaceSel("");m_result=0;num1=0;num2=0;numflag=0;dotflag=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='-'

25、numflag=0;dotflag=0;quan2=1;void CMyDlg:Oncheng() UpdateData();num1=m_result;cal='*'numflag=0;dotflag=0;quan2=1;void CMyDlg:Onchu() UpdateData();num1=m_result;cal='/'numflag=0;dotflag=0;quan2=1;void CMyDlg:Ondengyu() UpdateData();num2=m_result;switch(cal)case'+':m_result=num1

26、+num2;break;case'-':m_result=num1-num2;break;case'*':m_result=num1*num2;break;case'/':m_result=num1/num2;break;case'x':m_result=pow(num1,num2);break;numflag=0;dotflag=0;quan2=1;UpdateData(FALSE);void CMyDlg:Ondaoshu() UpdateData();m_result=1/m_result;numflag=0;dotflag

27、=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&&numflag)if(dotquan>=10)temp=(long)(m_result*dotquan);m_result=(double)(temp/10);dotquan/=10;m_resul

28、t=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);void CMyDlg:Onlog() UpdateData();m_result=log(m_result)/log(10);numflag=0;dotflag=0;quan

29、2=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_result<0)MessageBox("輸入無效！");return;m_result = sqrt(m_result);UpdateData(FALSE);void CMyDlg:Onsin() m_result=sin(m_result*i);UpdateData(FALSE);void CMyDlg:Oncos() m_result=cos(m_result*i);UpdateData(FALSE);void CMyDlg:Ontan() m_result=tan(m_result*i);UpdateData(FALSE);void CMyDlg:Onpingfang() UpdateData();m