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1、简易计算器实验详细过程硬件环境:软件环境:WinXP+VC+6.0一、实验目的：构造一个类似Windows自带的计算器一样的简易计算器，能够连续进行加、 减、乘、除四则整数运算，并能随时清除计算结果进行下一次计算。二、具体实验步骤：1、添加编辑框对应的变量 m_Display2、添加运算符类型变量char CompuType; /用于存储运算符类型CString FirstInput; /用于保存运算符前面的输入值3、添加各种按钮的单击事件处理方法的函数控件名称列表： 主对话框标识： IDD_CALC_DIALOG 关于对话框标识： IDD_ABOUTBOX 编辑框： IDC_EDIT 运算符
2、按钮标识：加：IDC_BUTTONADD减：IDC_BUTTONSUBTRACT乘：IDC_BUTTONMULTIPLY除：IDC_BUTTONDIVIDEAjV -r.等于： IDC_BUTTONEQUER09 数字符按钮标识：7： IDC_BUTTONSEVEN8：DC_BUTTONEIGHT9： IDC_BUTTONNINE 4：IDC_BUTTONFOUR 5：IDC_BUTTONFIVE 6：IDC_BUTTONSIX 1：C_BUTTONONE 2：IDC_BUTTONTWO 3：IDC_BUTTONTHREE 0：IDC_BUTTONZERO清除按钮标识：IDC_BUTTONCL
3、EAR 关于按钮标识： IDC_BUTTONABOUT类的成员变量：class CCalcDlg : public CDialog/ Construction public:char CompuType; /用于存储运算符类型 CCalcDlg(CWnd* pParent = NULL); / standard constructor / (省略)protected:CString FirstInput;/用于保存运算符前面的输入值/ (省略);按钮单击的事件对应方法程序列表： void CCalcDlg:OnButtonone()/ TODO: Add your control notifi
4、cation handler code here m_Display = m_Display+_T(1);UpdateData(FALSE);void CCalcDlg:OnButtontwo()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(2);UpdateData(FALSE);void CCalcDlg:OnButtonthree()/ TODO: Add your control notification handler code here m_Display = m_D
5、isplay+_T(3);UpdateData(FALSE);void CCalcDlg:OnButtonfour()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(4);UpdateData(FALSE);void CCalcDlg:OnButtonfive()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(5);UpdateData(FALSE);void CCal
6、cDlg:OnButtonsix()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(6);UpdateData(FALSE);void CCalcDlg:OnButtonseven()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(7);UpdateData(FALSE);void CCalcDlg:OnButtoneight()/ TODO: Add your con
7、trol notification handler code here m_Display = m_Display+_T(8);UpdateData(FALSE);void CCalcDlg:OnButtonnine()/ TODO: Add your control notification handler code here m_Display = m_Display+_T(9);UpdateData(FALSE);void CCalcDlg:OnButtonzero()/ TODO: Add your control notification handler code here m_Di
8、splay = m_Display+_T(0);UpdateData(FALSE);void CCalcDlg:OnButtonadd()/ TODO: Add your control notification handler code here FirstInput = m_Display;m_Display = _T();UpdateData(FALSE);CompuType=+;void CCalcDlg:OnButtonsubtract()/ TODO: Add your control notification handler code here FirstInput = m_Di
9、splay;m_Display = _T();UpdateData(FALSE);CompuType=-;void CCalcDlg:OnButtondivide()/ TODO: Add your control notification handler code here FirstInput = m_Display;m_Display = _T();UpdateData(FALSE);CompuType=/;void CCalcDlg:OnButtonmultiply()/ TODO: Add your control notification handler code hereFirs
10、tInput = m_Display; m_Display = _T();UpdateData(FALSE);CompuType=*;void CCalcDlg:OnButtonequer()/ TODO: Add your control notification handler code hereint TempResult; /定义存储结果的临时变量int FirstInputValue,NewInputValue; /定义进行运算的临时变量FirstInputValue=atoi(FirstInput.GetBuffer(24); /将字符串变量转换成整型值 FirstInput.Re
11、leaseBuffer(-1);NewInputValue=atoi(m_Display.GetBuffer(24); /将字符串变量转换成整型值 m_Display.ReleaseBuffer(-1);switch(CompuType) /开关语句判断运算符类型case +:TempResult = FirstInputValue + NewInputValue; /将加法运算结果传给出临 时变量 TempResultbreak;case -:TempResult = FirstInputValue - NewInputValue; /将减法运算结果传给出临时 变量 TempResultbr
12、eak;case *:TempResult = FirstInputValue * NewInputValue; /将乘法运算结果传给出临 时变量 TempResultbreak;case /:TempResult = FirstInputValue / NewInputValue; /将除法运算结果传给出临时 变量 TempResultbreak;sprintf(m_Display.GetBuffer(24),%d,TempResult); /将运算结果变量值传递给出编辑 控件变量m_Displaym_Display.ReleaseBuffer(-1);UpdateData(FALSE); /刷新编辑控件变量,并在编辑框中显示运算结果void CCalcDlg:OnButtonclear()/ TODO: Add your control notification handler code here m_Display.Empty(); /清空存储在变量m_Display中的数据 UpdateData(FALSE);void CCalcDlg:OnButtonabout()/ TODO: Add your control notification handler code here CAboutDlg DlgAbout;DlgAbout.DoModal();
