MFC 写计算器代码

// CalculatorDlg.cpp : 实现文件//#include "stdafx.h"#include "Calculator.h"#include "CalculatorDlg.h"#include "afxdialogex.h"#ifdef _DEBUG#define new DEBUG_NEW#endif// CCalculatorDlg 对话框CCalculatorDlg::CCalculatorDlg(CWnd* pParent /*=NULL*/): CDialogEx(CCalculatorDlg::IDD, pParent), m_res(_T("")), m_iSign(0), m_fNumber1(0), m_fNumber2(0){m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void CCalculatorDlg::DoDataExchange(CDataExchange* pDX){CDialogEx::DoDataExchange(pDX);}BEGIN_MESSAGE_MAP(CCalculatorDlg, CDialogEx)ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDOK, &CCalculatorDlg::OnBnClickedOk)ON_BN_CLICKED(IDCANCEL, &CCalculatorDlg::OnBnClickedCancel)ON_BN_CLICKED(IDC_BTN0, &CCalculatorDlg::OnBnClickedBtn0)ON_BN_CLICKED(IDC_BTN1, &CCalculatorDlg::OnBnClickedBtn1)ON_BN_CLICKED(IDC_BTN2, &CCalculatorDlg::OnBnClickedBtn2)ON_BN_CLICKED(IDC_BTN3, &CCalculatorDlg::OnBnClickedBtn3)ON_BN_CLICKED(IDC_BTN4, &CCalculatorDlg::OnBnClickedBtn4)ON_BN_CLICKED(IDC_BTN5, &CCalculatorDlg::OnBnClickedBtn5)ON_BN_CLICKED(IDC_BTN6, &CCalculatorDlg::OnBnClickedBtn6)ON_BN_CLICKED(IDC_BTN7, &CCalculatorDlg::OnBnClickedBtn7)ON_BN_CLICKED(IDC_BTN8, &CCalculatorDlg::OnBnClickedBtn8)ON_BN_CLICKED(IDC_BTN9, &CCalculatorDlg::OnBnClickedBtn9)ON_BN_CLICKED(IDC_BTNPOINT, &CCalculatorDlg::OnBnClickedBtnpoint)ON_BN_CLICKED(IDC_BTNPLUS, &CCalculatorDlg::OnBnClickedBtnplus)ON_BN_CLICKED(IDC_BTNEQUIT, &CCalculatorDlg::OnBnClickedBtnequit)ON_BN_CLICKED(IDC_BTNJIAN, &CCalculatorDlg::OnBnClickedBtnjian)ON_BN_CLICKED(IDC_BTNCHEN, &CCalculatorDlg::OnBnClickedBtnchen)ON_BN_CLICKED(IDC_BTNDIV, &CCalculatorDlg::OnBnClickedBtndiv)ON_BN_CLICKED(IDC_BTNRESET, &CCalculatorDlg::OnBnClickedBtnreset)ON_BN_CLICKED(IDC_BTNDAO, &CCalculatorDlg::OnBnClickedBtndao)ON_BN_CLICKED(IDC_2X, &CCalculatorDlg::OnBnClicked2x)ON_BN_CLICKED(IDC_SQRT, &CCalculatorDlg::OnBnClickedSqrt)ON_BN_CLICKED(IDC_DELETE, &CCalculatorDlg::OnBnClickedDelete)ON_BN_CLICKED(IDC_INTTOO, &CCalculatorDlg::OnBnClickedInttoo)ON_BN_CLICKED(IDC_INTTOASCII, &CCalculatorDlg::OnBnClickedInttoascii)ON_BN_CLICKED(IDC_BTNMOD, &CCalculatorDlg::OnBnClickedBtnmod)END_MESSAGE_MAP()// CCalculatorDlg 消息处理程序BOOL CCalculatorDlg::OnInitDialog(){CDialogEx::OnInitDialog();// 设置此对话框的图标。  当应用程序主窗口不是对话框时，框架将自动//  执行此操作SetIcon(m_hIcon, TRUE);// 设置大图标SetIcon(m_hIcon, FALSE);// 设置小图标// TODO:  在此添加额外的初始化代码return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE}// 如果向对话框添加最小化按钮，则需要下面的代码//  来绘制该图标。  对于使用文档/视图模型的 MFC 应用程序，//  这将由框架自动完成。void CCalculatorDlg::OnPaint(){if (IsIconic()){CPaintDC dc(this); // 用于绘制的设备上下文SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);// 使图标在工作区矩形中居中int cxIcon = GetSystemMetrics(SM_CXICON);int cyIcon = GetSystemMetrics(SM_CYICON);CRect rect;GetClientRect(&rect);int x = (rect.Width() - cxIcon + 1) / 2;int y = (rect.Height() - cyIcon + 1) / 2;// 绘制图标dc.DrawIcon(x, y, m_hIcon);}else{CDialogEx::OnPaint();}}//当用户拖动最小化窗口时系统调用此函数取得光标//显示。HCURSOR CCalculatorDlg::OnQueryDragIcon(){return static_cast<HCURSOR>(m_hIcon);}void CCalculatorDlg::OnBnClickedOk(){// TODO:  在此添加控件通知处理程序代码if (GetDlgItem(IDOK) == GetFocus()){CDialogEx::OnOK();}}void CCalculatorDlg::OnBnClickedCancel(){// TODO:  在此添加控件通知处理程序代码/*CDialogEx::OnCancel();*/EndDialog(IDCANCEL);}void CCalculatorDlg::OnBnClickedBtn0(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "0";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn1(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "1";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn2(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "2";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn3(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "3";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn4(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "4";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn5(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "5";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn6(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "6";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn7(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "7";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn8(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "8";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtn9(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += "9";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtnpoint(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_res += ".";play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtnplus(){// TODO:  在此添加控件通知处理程序代码SaveValue();m_iSign = 0;}void CCalculatorDlg::SaveValue(){UpdateData(TRUE);m_fNumber1 = atof(csTocc(m_res));m_res = _T("");play(m_res);UpdateData(FALSE);}const char * CCalculatorDlg::csTocc(CString str){const size_t strsize = (str.GetLength() + 1) * 2;char * pstr = new char[strsize];size_t sz = 0;wcstombs_s(&sz, pstr, strsize, str, _TRUNCATE);return (const char*)pstr;}void CCalculatorDlg::OnBnClickedBtnequit(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_fNumber2 = atof(csTocc(m_res));double f = 0.0f;switch (m_iSign){case 0:f = m_fNumber1 + m_fNumber2;break;case 1:f = m_fNumber1 - m_fNumber2;break;case 2:f = m_fNumber1 * m_fNumber2;break;case 3:if (m_fNumber2 == 0.0f){f = m_fNumber1;}else{f = m_fNumber1 / m_fNumber2;}break;case 4:if ((m_fNumber2 - int(m_fNumber2)) != 0.0f){AfxMessageBox(_T("次方必须是整数"));return;}f = m_fNumber1;for (int i = 0; i < int(m_fNumber2)-1;i++){f = f * m_fNumber1;}break;default:break;}if (f - int(f) < 1e-5){m_res.Format(_T("%d"),int(f));}else{m_res.Format(_T("%f"), f);}play(m_res);UpdateData(FALSE);m_fNumber1 = f;m_fNumber2 = 0.0f;}void CCalculatorDlg::OnBnClickedBtnjian(){// TODO:  在此添加控件通知处理程序代码SaveValue();m_iSign = 1;}void CCalculatorDlg::OnBnClickedBtnchen(){// TODO:  在此添加控件通知处理程序代码SaveValue();m_iSign = 2;}void CCalculatorDlg::OnBnClickedBtndiv(){// TODO:  在此添加控件通知处理程序代码SaveValue();m_iSign = 3;}void CCalculatorDlg::play(CString str){SetDlgItemText(IDC_RESULT, str);}void CCalculatorDlg::OnBnClickedBtnreset(){// TODO:  在此添加控件通知处理程序代码m_res = _T("");play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtndao(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_fNumber1 = atof(csTocc(m_res));if (m_fNumber1 == 0.0f){AfxMessageBox(_T("sorry,0不能做分母！"));}double f = 1 / m_fNumber1;if (f - int(f) < 1e-5){m_res.Format(_T("%d"), int(f));}else{m_res.Format(_T("%f"), f);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClicked2x(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_fNumber1 = atof(csTocc(m_res));double f = m_fNumber1 * m_fNumber1;if (f - int(f) < 1e-5){m_res.Format(_T("%d"), int(f));}else{m_res.Format(_T("%f"), f);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedSqrt(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);m_fNumber1 = atof(csTocc(m_res));double f = sqrt(m_fNumber1);if (f - int(f) < 1e-5){m_res.Format(_T("%d"), int(f));}else{m_res.Format(_T("%f"), f);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedDelete(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);if (!m_res.IsEmpty()){m_res = m_res.Left(m_res.GetLength() - 1);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedInttoo(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);if (m_res.GetLength() != 3){AfxMessageBox(_T("八进制必须是3位"));}else{CString a = m_res.Mid(0, 1);CString b = m_res.Mid(1, 1);CString c = m_res.Mid(2, 1);int aa = atoi(csTocc(a)) * 64;int bb = atoi(csTocc(b)) * 8;int cc = atoi(csTocc(c)) * 1;int res = aa + bb + cc;m_res.Format(_T("%d"),res);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedInttoascii(){// TODO:  在此添加控件通知处理程序代码UpdateData(TRUE);if (m_res.GetLength() != 3){AfxMessageBox(_T("八进制必须是3位"));}else{CString a = m_res.Mid(0, 1);CString b = m_res.Mid(1, 1);CString c = m_res.Mid(2, 1);int aa = atoi(csTocc(a)) * 64;int bb = atoi(csTocc(b)) * 8;int cc = atoi(csTocc(c)) * 1;int res = aa + bb + cc;m_res.Format(_T("%c"), res);}play(m_res);UpdateData(FALSE);}void CCalculatorDlg::OnBnClickedBtnmod(){// TODO:  在此添加控件通知处理程序代码SaveValue();m_iSign = 4;}