VC++课程设计实验报告

《VC++课程设计》题目一：计算器学院：XXXXXXX班级：XXXXXXX学号：XXXXXXX姓名：XXXXXXX设计时间：XXXXXXX目录：需求分析---------------------------------------------1课题设计内容---------------------------------------1(1)课程设计基本流程------------------------------------------1(2)详细设计说明------------------------------------------------2(3)设计流程图---------------------------------------------------13(4)主要程序------------------------------------------------------14(5)运行结果截图-----------------------------------------------3.得意之处---------------------------------------------144.设计实践过程中的收获与体会------------------145.设计目前存在的问题--------------------------156.主要参考文献--------------------------------------需求分析本课程主要是完成一个简单计算器的设计，要求用户在使用时可以准确显示整数及小数，并准确进行加、减、乘、除、幂运算，最后实现清零和退出。课程设计内容课程设计基本流程：首先是进行MFC基本对话框的创建，然后设计界面，界面上包括数字按钮、等号按钮、小数点按钮、运算按钮、退出按钮、清零按钮和编辑框。并对各个按钮和编辑框的地址、标题进行更改，绑定变量。最后，建立函数，完成代码的编写，实现程序。详细设计说明：完成MFC基本对话框的创建后，进行界面设计。在界面的左上方设置编辑框，在其属性里将地址改为result，绑定变量名称为m_result，类型为String型。界面左面为数字键盘，右面为运算符号。然后对两部分分别进行组框。对各个按钮地址进行名称、地址更改。再建立类向导，在MessageMaps的Messages中选中BN_CLICKED，点击确定，完成绑定变量。双击各个按钮，建立函数，添加代码，实现数字按钮的执行与运算符按钮的执行。以下是对应控件：ID对应控件IDC_11IDC_22IDC_33IDC_44IDC_55IDC_66IDC_77IDC_88IDC_99IDC_00IDC_dengyudengyuIDC_diandianIDC_jiajiaIDC_jianjianIDC_chengchengIDC_chuchuIDC_mifangmifangIDC_qinglingqinglingIDC_tuichutuichuIDC_resultresult设计流程图：变量变量编辑框按钮编辑框按钮运算数字运算数字绑定变量绑定变量主要程序：//计算器Dlg.cpp:implementationfile//#include"stdafx.h"#include"计算器.h"#include"计算器Dlg.h"#ifdef_DEBUG#definenewDEBUG_NEW#undefTHIS_FILEstaticcharTHIS_FILE[]=__FILE__;#endifdoublei;//代表不同于m_result的变量，主要用于运算intj;//定义整型变量j，并在输入运算符时赋值///////////////////////////////////////////////////////////////////////////////CAboutDlgdialogusedforAppAboutclassCAboutDlg:publicCDialog{public: CAboutDlg();//DialogData //{{AFX_DATA(CAboutDlg) enum{IDD=IDD_ABOUTBOX}; //}}AFX_DATA //ClassWizardgeneratedvirtualfunctionoverrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtualvoidDoDataExchange(CDataExchange*pDX);//DDX/DDVsupport //}}AFX_VIRTUAL//Implementationprotected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP()};CAboutDlg::CAboutDlg():CDialog(CAboutDlg::IDD){ //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT}voidCAboutDlg::DoDataExchange(CDataExchange*pDX){ CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CAboutDlg,CDialog) //{{AFX_MSG_MAP(CAboutDlg) //Nomessagehandlers //}}AFX_MSG_MAPEND_MESSAGE_MAP()///////////////////////////////////////////////////////////////////////////////CMyDlgdialogCMyDlg::CMyDlg(CWnd*pParent/*=NULL*/) :CDialog(CMyDlg::IDD,pParent){ //{{AFX_DATA_INIT(CMyDlg) m_result=_T(""); //}}AFX_DATA_INIT //NotethatLoadIcondoesnotrequireasubsequentDestroyIconinWin32 m_hIcon=AfxGetApp()->LoadIcon(IDR_MAINFRAME);}voidCMyDlg::DoDataExchange(CDataExchange*pDX){ CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CMyDlg) DDX_Text(pDX,IDC_result,m_result); //}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CMyDlg,CDialog) //{{AFX_MSG_MAP(CMyDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_1,On1) ON_BN_CLICKED(IDC_2,On2) ON_BN_CLICKED(IDC_3,On3) ON_BN_CLICKED(IDC_4,On4) ON_BN_CLICKED(IDC_5,On5) ON_BN_CLICKED(IDC_6,On6) ON_BN_CLICKED(IDC_7,On7) ON_BN_CLICKED(IDC_8,On8) ON_BN_CLICKED(IDC_9,On9) ON_BN_CLICKED(IDC_0,On0) ON_BN_CLICKED(IDC_dengyu,Ondengyu) ON_BN_CLICKED(IDC_dian,Ondian) 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_mifang,Onmifang) ON_BN_CLICKED(IDC_qingling,Onqingling) ON_BN_CLICKED(IDC_tuichu,Ontuichu) ON_EN_CHANGE(IDC_result,Onresult) //}}AFX_MSG_MAPEND_MESSAGE_MAP()///////////////////////////////////////////////////////////////////////////////CMyDlgmessagehandlersBOOLCMyDlg::OnInitDialog(){ CDialog::OnInitDialog(); //Add"About..."menuitemtosystemmenu. //IDM_ABOUTBOXmustbeinthesystemcommandrange. ASSERT((IDM_ABOUTBOX&0xFFF0)==IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX<0xF000); CMenu*pSysMenu=GetSystemMenu(FALSE); if(pSysMenu!=NULL) { CStringstrAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if(!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING,IDM_ABOUTBOX,strAboutMenu); } } //Settheiconforthisdialog.Theframeworkdoesthisautomatically //whentheapplication'smainwindowisnotadialog SetIcon(m_hIcon,TRUE); //Setbigicon SetIcon(m_hIcon,FALSE); //Setsmallicon //TODO:Addextrainitializationhere returnTRUE;//returnTRUEunlessyousetthefocustoacontrol}voidCMyDlg::OnSysCommand(UINTnID,LPARAMlParam){ if((nID&0xFFF0)==IDM_ABOUTBOX) { CAboutDlgdlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID,lParam); }}//Ifyouaddaminimizebuttontoyourdialog,youwillneedthecodebelow//todrawtheicon.ForMFCapplicationsusingthedocument/viewmodel,//thisisautomaticallydoneforyoubytheframework.voidCMyDlg::OnPaint(){ if(IsIconic()) { CPaintDCdc(this);//devicecontextforpainting SendMessage(WM_ICONERASEBKGND,(WPARAM)dc.GetSafeHdc(),0); //Centericoninclientrectangle intcxIcon=GetSystemMetrics(SM_CXICON); intcyIcon=GetSystemMetrics(SM_CYICON); CRectrect; GetClientRect(&rect); intx=(rect.Width()-cxIcon+1)/2; inty=(rect.Height()-cyIcon+1)/2; //Drawtheicon dc.DrawIcon(x,y,m_hIcon); } else { CDialog::OnPaint(); }}//Thesystemcallsthistoobtainthecursortodisplaywhiletheuserdrags//theminimizedwindow.HCURSORCMyDlg::OnQueryDragIcon(){ return(HCURSOR)m_hIcon;}voidCMyDlg::On1(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="1"; UpdateData(false);//数据的更新}voidCMyDlg::On2(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="2"; UpdateData(false);}voidCMyDlg::On3(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="3"; UpdateData(false);}voidCMyDlg::On4(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="4"; UpdateData(false);}voidCMyDlg::On5(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="5"; UpdateData(false);}voidCMyDlg::On6(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="6"; UpdateData(false);}voidCMyDlg::On7(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="7"; UpdateData(false);}voidCMyDlg::On8(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="8"; UpdateData(false);}voidCMyDlg::On9(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="9"; UpdateData(false);}voidCMyDlg::On0(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="0"; UpdateData(false);}voidCMyDlg::Ondengyu(){ //TODO:Addyourcontrolnotificationhandlercodehere doublek=0;switch(j) {case1:k=i+atof(m_result);break;case2:k=i-atof(m_result);break;case3:k=i*atof(m_result);break;case4:if(atof(m_result)!=0) {k=i/atof(m_result);break; }else {MessageBox("can'tusezero!"); } case7: { doublem=atof(m_result); k=1; for(m;m>=1;m--) { k=k*i; } break; } }charcRet[50];memset(cRet,0,50);sprintf(cRet,"%f",k);m_result=cRet;UpdateData(FALSE);//所有iQian与iType清0i=0;j=0;m_result="";return;}//等于号中定义了一个整形变量j，并在输入运算符的时候赋值，用switch语句选择运行的运算，编程序进行运算并在编辑框显示出来运算结果。函数则不用点等于号直接显示结果。voidCMyDlg::Ondian(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="."; UpdateData(false);}voidCMyDlg::Onjia(){ //TODO:Addyourcontrolnotificationhandlercodehere i=atof(m_result);//实现字符串到double的转换 j=1; m_result+="+"; m_result=""; UpdateData(false);}voidCMyDlg::Onjian(){ //TODO:Addyourcontrolnotificationhandlercodehere i=atof(m_result); j=2; m_result+="-"; m_result=""; UpdateData(false);}voidCMyDlg::Oncheng(){ //TODO:Addyourcontrolnotificationhandlercodehere i=atof(m_result); j=3; m_result+="*"; m_result=""; UpdateData(false);}voidCMyDlg::Onchu(){ //TODO:Addyourcontrolnotificationhandlercodehere i=atof(m_result); j=4; m_result+="/"; m_result=""; UpdateData(false);}voidCMyDlg::Onmifang(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result+="^"; i=atof(m_result); m_result=""; j=7; UpdateData(false);}voidCMyDlg::Onqingling(){ //TODO:Addyourcontrolnotificationhandlercodehere m_result=""; UpdateData(false);//编辑框的清空}voidCMyDlg::Ontuichu(){ //TODO:AddyourcontrolnotificationhandlercodehereCDialog::OnCancel();//程序的退出}voidCMyDlg::Onresult(){ //TODO:IfthisisaRICHEDITcontrol,thecontrolwillnot //sendthisnotificationunlessyouoverridetheCDialog::OnInitDialog() //functionandcallCRichEditCtrl().SetEvent