MFC设计简单的计算器.doc

石家庄经济学院实 验 报 告学 院: 专 业: 计算机 信息工程学院计算机实验中心制Windows程序设计实验报告姓名学号 日期实验室计算机软件技术实验 指导教师设备编号实验题目实验9 对话框一、实验目的1. 掌握对话框类的定义及使用2. 掌握对话框的数据交换和检验2、 实验内容1. 编写一个基于对话框的程序，当用户点击对话框上的按钮时弹出一个模态对话框，显示的对话框中央显示出当前时间。程序界面如下图所示：2. 试着编写一个可以完成计算器的基于对话框的应用程序，该应用程序具有“加”、“减”、“乘”、“除”的功能三、源代码及实验结果1 显示时间核心代码：class CMydialog : public CDialog/ Constructionpublic:CMydialog(CWnd* pParent = NULL); / standard constructor/ Dialog Data/AFX_DATA(CMydialog)enum IDD = IDD_DIALOG1 ;CStringm_time;/AFX_DATA/ Overrides/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CMydialog)protected:virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:/ Generated message map functions/AFX_MSG(CMydialog)afx_msg void On_OK();afx_msg void On_Cancel();/AFX_MSGDECLARE_MESSAGE_MAP();CMydialog:CMydialog(CWnd* pParent /*=NULL*/): CDialog(CMydialog:IDD, pParent)/AFX_DATA_INIT(CMydialog)m_time = _T();/AFX_DATA_INITvoid CMydialog:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CMydialog)DDX_Text(pDX, IDC_STATIC1, m_time);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CMydialog, CDialog)/AFX_MSG_MAP(CMydialog)ON_BN_CLICKED(IDC_BUTTON1, On_OK)ON_BN_CLICKED(IDC_BUTTON2, On_Cancel)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CMydialog message handlersvoid CMydialog:On_OK() / TODO: Add your control notification handler code hereCDialog:OnOK();void CMydialog:On_Cancel() / TODO: Add your control notification handler code hereCDialog:OnCancel();void CTest10_1Dlg:OnButton1() / TODO: Add your control notification handler code hereCTime time = CTime:GetCurrentTime();CMydialog dlg;dlg.m_time = time.Format(%Y-%m-%d %H:%M:%S);UpdateData(FALSE);dlg.DoModal();结果：图一2 计算器核心代码：CTest10_2Dlg:CTest10_2Dlg(CWnd* pParent /*=NULL*/): CDialog(CTest10_2Dlg:IDD, pParent)num1 = 0;num2 = 0;/AFX_DATA_INIT(CTest10_2Dlg)/m_result = _T();m_result.Format(%g,num1);/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDI_ICON1);e = 0;operate = N;_Flag = FALSE;DotFlag = FALSE;void CTest10_2Dlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CTest10_2Dlg)DDX_Text(pDX, IDC_EDIT1, m_result);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CTest10_2Dlg, CDialog)/AFX_MSG_MAP(CTest10_2Dlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_BUTTON0, OnButton0)ON_BN_CLICKED(IDC_BUTTON1, OnButton1)ON_BN_CLICKED(IDC_BUTTON2, OnButton2)ON_BN_CLICKED(IDC_BUTTON3, OnButton3)ON_BN_CLICKED(IDC_BUTTON4, OnButton4)ON_BN_CLICKED(IDC_BUTTON5, OnButton5)ON_BN_CLICKED(IDC_BUTTON6, OnButton6)ON_BN_CLICKED(IDC_BUTTON7, OnButton7)ON_BN_CLICKED(IDC_BUTTON8, OnButton8)ON_BN_CLICKED(IDC_BUTTON9, OnButton9)ON_BN_CLICKED(IDC_BUTTON00, OnButton00)ON_BN_CLICKED(IDC_DOT, OnDot)ON_BN_CLICKED(IDC_BUTTON_, OnButton)ON_BN_CLICKED(IDC_ADD, OnAdd)ON_BN_CLICKED(IDC_MINUS, OnMinus)ON_BN_CLICKED(IDC_MUL, OnMul)ON_BN_CLICKED(IDC_DIV, OnDiv)ON_BN_CLICKED(IDC_COUNT, OnCount)/AFX_MSG_MAPEND_MESSAGE_MAP()void CTest10_2Dlg:OnButton0() / TODO: Add your control notification handler code herePress(0);void CTest10_2Dlg:OnButton1() / TODO: Add your control notification handler code herePress(1);void CTest10_2Dlg:OnButton2() / TODO: Add your control notification handler code herePress(2);void CTest10_2Dlg:OnButton3() / TODO: Add your control notification handler code herePress(3);void CTest10_2Dlg:OnButton4() / TODO: Add your control notification handler code herePress(4);void CTest10_2Dlg:OnButton5() / TODO: Add your control notification handler code herePress(5);void CTest10_2Dlg:OnButton6() / TODO: Add your control notification handler code herePress(6);void CTest10_2Dlg:OnButton7() / TODO: Add your control notification handler code herePress(7);void CTest10_2Dlg:OnButton8() / TODO: Add your control notification handler code herePress(8);void CTest10_2Dlg:OnButton9() / TODO: Add your control notification handler code herePress(9);void CTest10_2Dlg:OnButton00() / TODO: Add your control notification handler code here/Flag00 = TRUE;Press(0);Press(0);void CTest10_2Dlg:OnDot() / TODO: Add your control notification handler code hereDotFlag = TRUE;void CTest10_2Dlg:OnButton() / TODO: Add your control notification handler code here/operate = n;m_result = -;UpdateData(FALSE);_Flag = TRUE;void CTest10_2Dlg:OnAdd() / TODO: Add your control notification handler code hereoperate = +;DotFlag = FALSE;_Flag = FALSE;void CTest10_2Dlg:OnMinus() / TODO: Add your control notification handler code hereoperate = -;DotFlag = FALSE;_Flag = FALSE;void CTest10_2Dlg:OnMul() / TODO: Add your control notification handler code hereoperate = *;DotFlag = FALSE;_Flag = FALSE;void CTest10_2Dlg:OnDiv() / TODO: Add your control notification handler code hereoperate = /;DotFlag = FALSE;_Flag = FALSE;void CTest10_2Dlg:OnCount() / TODO: Add your control notification handler code hereswitch(operate)case +:num1 += num2;break;case -:num1 -= num2;break;case *:num1 *= num2;break;case /:if(num2 = 0)MessageBox(除数不可以是0!);return;num1 /= num2;break;case n:num1 = 0 - num2;break;case N:break;m_result.Format(%g,num1);UpdateData(FALSE);DotFlag = FALSE;_Flag = FALSE;num1 = 0;num2 = 0;e = 0;operate = N;void CTest10_2Dlg:Press(int n)if(DotFlag) if(operate = N) if(n) if(_Flag)num1 -= n*pow(0.1,e);else num1 += n*pow(0.1,e);m_result.Format(%g,num1); elseUpdateData(TRUE);m_result += 0; else if(_Flag)num2 -= n*pow(0.1,e); num2 += n*pow(0.1,e);m_result.Format(%g,num2); else if(operate = N) num1 *= 10;if(_Flag)num1 -= n;elsenum1 += n;m_result.Format(