简易计算器实验报告.doc

简易计算器实验报告实 验 题 目 简易计算器 学 生 姓 名 吴云 学 号 2013051205 所 在 学 院 计算机学院 年 级 班 级 计科5班 成都信息工程学院 计算机学院一、 题目：简易计算器 题目概述： 学习MFC的应用，做出相对精美的界面；学习面向对象的思想，即用C+，考虑到类。 模仿Windows的计算器，用图形界面实现加减乘除开根号求倒数等等基本操作。 实现括号运算。二、 开发环境Win7操作系统的电脑一台 + VC6.0编程软件三、 设计步骤（1） 界面设计：首先打开VC+6.0 建立一个MFC的基本对话框，添加所需的按钮的编辑框如下图：（2） 添加变量：点击菜单栏的：查看-建立类向导-添加成员变量：给编辑框添加一个CString类型的变量m_result。（3） 为按钮添加事件：为按钮和编辑框改了名字和ID后点击每一个按钮，为每一个按钮添加一个对应的事件，即：为每一个按钮添加算法代码。（4） 个性化程序：即修改程序一些细节的地方，如程序的图标，程序的界面颜色、图案等等。（5） 调试并运行程序：将写好的程序调试好了后运行。四、 程序的主要函数及其释义： void CCalculatorDlg:OnButton1() /按下数字键1时出现的事件/ TODO: Add your control notification handler code hereif(fff = 1)/当fff = 0时，此时刚算完上次的数据，再按数字键时自动清空上次的数据m_result = _T(); /对字符串处理需要_T()函数实现fff = 0;m_result += _T(1);UpdateData(FALSE); /将数据送到编辑窗口void CCalculatorDlg:OnButton2() /按下数字键2时出现的事件，同上/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(2);UpdateData(FALSE);void CCalculatorDlg:OnButton3() / 3/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(3);UpdateData(FALSE);void CCalculatorDlg:OnButton4() / 4 / TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(4);UpdateData(FALSE);void CCalculatorDlg:OnButton5() / 5/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(5);UpdateData(FALSE);void CCalculatorDlg:OnButton6() / 6/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(6);UpdateData(FALSE);void CCalculatorDlg:OnButton7() / 7/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(7);UpdateData(FALSE);void CCalculatorDlg:OnButton8() / 8/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(8);UpdateData(FALSE);void CCalculatorDlg:OnButton9() / 9/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(9);UpdateData(FALSE);void CCalculatorDlg:OnButton10() / 0/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(0);UpdateData(FALSE);void CCalculatorDlg:OnButton11() /按下.后出现的事件/ TODO: Add your control notification handler code hereif(fff = 1)m_result = _T();fff = 0;m_result += _T(.);UpdateData(FALSE);void CCalculatorDlg:OnBUTTONpi() / 按下PI后出现的事件/ TODO: Add your control notification handler code herefff = 0;m_result = _T(3.14159265358979);UpdateData(FALSE);void CCalculatorDlg:OnBUTTONjia() / 按下+键，后发生的事件/ TODO: Add your control notification handler code heren = 1;data = strtod(m_result,NULL); / 将之前输入的字符串转化为double型的数并保存起来m_result = _T(); /清空输入屏void CCalculatorDlg:OnBUTTONjian() /减，同理/ TODO: Add your control notification handler code heren = 2;data = strtod(m_result,NULL);m_result = _T();void CCalculatorDlg:OnBUTTONchen() /乘/ TODO: Add your control notification handler code heren = 3;data = strtod(m_result,NULL);m_result = _T();void CCalculatorDlg:OnBUTTONchu() /除/ TODO: Add your control notification handler code heren = 4;data = strtod(m_result,NULL);m_result = _T();void CCalculatorDlg:OnBUTTONcifang() /次方/ TODO: Add your control notification handler code heren = 5;data = strtod(m_result,NULL);m_result = _T();void CCalculatorDlg:OnBUTTONDel() /退格/ TODO: Add your control notification handler code herem_result = m_result.Left(m_result.GetLength() - 1);UpdateData(FALSE);void CCalculatorDlg:OnBUTTONdengyu() /等于，按下=键后发生的事件/ TODO: Add your control notification handler code hereif(n=1)/加data += strtod(m_result,NULL);/将先前保存的数据与后输入的数据相加m_result.Format(_T(%lf), data);/将数据转化为CString型并显示在屏上UpdateData(FALSE);/刷新显示数据if(n=2)/减 同上类似data -= strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);if(n=3)/乘data *= strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);if(n=4)/除if(strtod(m_result,NULL) = 0) / 如果判断出被除数为0，就在输出框中输出以下文字。GetDlgItem(IDC_EDIT1)-SetWindowText(error!除数不能为0!);elsedata /= strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);if(n=5)/当判断运算符为次方时，根据幂底数的正负性有不同的情况if(data 0)data = exp(strtod(m_result,NULL)*log(data);m_result.Format(_T(%lf),data);UpdateData(FALSE);else if(data = 0)data = 0;m_result.Format(_T(%lf),data);UpdateData(FALSE);elseif(int)strtod(m_result,NULL) - strtod(m_result,NULL) != 0) /如计算(-2)3.2时，即指数有小数，输入以下文字。GetDlgItem(IDC_EDIT1)-SetWindowText(“该计算结果无意义!”);else/ 如计算(-2)3时，即指数没小数double i = strtod(m_result,NULL), data1 = data;for(; i 1; i-)data *= data1; m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnButtonAc() /AC，即按清除键。/ TODO: Add your control notification handler code herem_result = _T();UpdateData(FALSE);void CCalculatorDlg:OnBUTTONsin() /sin/ TODO: Add your control notification handler code heredata = sin(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONcos() /cos/ TODO: Add your control notification handler code heredata = cos(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONtan() /tan/ TODO: Add your control notification handler code heredata = tan(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONsqrt() /sqrt，即取平方根/ TODO: Add your control notification handler code hereif(strtod(m_result,NULL) SetWindowText(根号下不能负数哦);elsedata = sqrt(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONjiecheng() /阶乘/ TODO: Add your control notification handler code heredata = strtod(m_result,NULL);double i =data-1;for(;i 0; i-)data *= i;m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONlog() /lg/ TODO: Add your control notification handler code heredata = log10(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONln() /ln/ TODO: Add your control notification handler code heredata = log(strtod(m_result,NULL);m_result.Format(_T(%lf),data);UpdateData(FALSE);fff = 1;void CCalculatorDlg:OnBUTTONzhengfu() /正负取反/ TODO: Add your control notification handler code heredata = -strtod(m_result,NULL);m_result.Format(_T(%lf),data