计算方法实验报告(6)

}

ASSERT(IDM_ABOUTBOX < 0xF000);

CMenu* pSysMenu = GetSystemMenu(FALSE); if (pSysMenu != NULL) { }

// Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE);

// Set big icon

SetIcon(m_hIcon, FALSE);

// Set small icon

BOOL bNameValid; CString strAboutMenu;

bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX); ASSERT(bNameValid);

if (!strAboutMenu.IsEmpty()) { }

pSysMenu->AppendMenu(MF_SEPARATOR);

pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);

// TODO: Add extra initialization here

return TRUE; // return TRUE unless you set the focus to a control

void CTwoDlg::OnSysCommand(UINT nID, LPARAM lParam) { }

// If you add a minimize button to your dialog, you will need the code below // to draw the icon. For MFC applications using the document/view model, // this is automatically done for you by the framework.

void CTwoDlg::OnPaint()

if ((nID & 0xFFF0) == IDM_ABOUTBOX) { } else { }

CDialogEx::OnSysCommand(nID, lParam); CAboutDlg dlgAbout; dlgAbout.DoModal();

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{ }

// The system calls this function to obtain the cursor to display while the user drags // the minimized window.

HCURSOR CTwoDlg::OnQueryDragIcon() { }

void CTwoDlg::OnEnChangeEdit1() { }

// TODO: Add your control notification handler code here // TODO: If this is a RICHEDIT control, the control will not

// send this notification unless you override the CDialogEx::OnInitDialog() // function and call CRichEditCtrl().SetEventMask() // with the ENM_CHANGE flag ORed into the mask. return static_cast(m_hIcon); } else { }

CDialogEx::OnPaint(); // Draw the icon

dc.DrawIcon(x, y, m_hIcon);

// Center icon in client rectangle 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;

SendMessage(WM_ICONERASEBKGND, reinterpret_cast(dc.GetSafeHdc()), 0); if (IsIconic()) {

CPaintDC dc(this); // device context for painting

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void CTwoDlg::OnBnClickedButton4() {

// TODO: 在此添加控件通知处理程序代码 CString mStr;

GetDlgItem(IDC_EDIT1)->GetWindowTextW(mStr); int n;

n = parseInt(mStr); double e = 1.0; int i = 0; while (i

double a, b, h;

a = 0, b = 6, h = b - a; double T1, T2;

T1 = h*(fun(a) + fun(b)) / 2; double s, x; CDC *p = GetDC(); while (true) {

s = 0;

x = a + h / 2; while (true) {

bool flag = fun(x) >0 ? 1 : 0; for (int i = 300 - fun(x) * 100;; ) { }

//p->MoveTo(100 + 50 * x, 300);

//p->LineTo(100 + 50 * x, 300 - fun(x) * 100); s += fun(x); x += h; if (x >= b)

break;

p->MoveTo(100 + 50 * x, i); i = flag ? i + 1 : i - 1;

if ((flag&&i > 300) || (!flag&&i < 300)) { }

Sleep(10);

p->LineTo(100 + 50 * x, i);

break;

e *= 0.1; i++;

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}

}

}

T2 = T1 / 2 + h*s / 2; if (fabs(T2 - T1) < e)

break; h /= 2; T1 = T2;

CString ms;

ms.Format(_T(\), T2);

p->TextOutW(200, 50, _T(\变长分步积分算法求定积分的解为:\)); p->TextOutW(250, 70, ms); ReleaseDC(p);

void CTwoDlg::OnBnClickedButton5() { }

void CTwoDlg::OnBnClickedButton1() {

// TODO: 在此添加控件通知处理程序代码 CDC *p = GetDC();

p->SetBkColor(RGB(240, 240, 240)); //绘制X轴

p->MoveTo(50, 300); p->LineTo(450, 300); p->MoveTo(445, 295); p->LineTo(450, 300); p->MoveTo(445, 305); p->LineTo(450, 300);

p->TextOutW(102, 302, _T(\)); p->TextOutW(450, 300, _T(\轴\)); for (int i = 1; i <= 6; i++) {

CString ms;

ms.Format(_T(\), i + 0.0); p->TextOutW(100 + 50 * i, 302, ms); p->MoveTo(100 + 50 * i, 300); // TODO: 在此添加控件通知处理程序代码 CDC *pDC = GetDC(); CRect rc(5, 5, 500, 400);

pDC->FillSolidRect(&rc, RGB(240, 240, 240)); ReleaseDC(pDC);

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}a

}

p->LineTo(100 + 50 * i, 295);

//绘制Y轴

p->MoveTo(100, 350); p->LineTo(100, 100); p->MoveTo(95, 105); p->LineTo(100, 100); p->MoveTo(105, 105); p->LineTo(100, 100);

p->TextOutW(100, 80, _T(\轴\)); for (int i = 1; i <= 3; i++) { }

ReleaseDC(p);

CString ms;

ms.Format(_T(\), 1.0 / 2 * i); p->TextOutW(80, 300 - 50 * i, ms); p->MoveTo(100, 300 - 50 * i); p->LineTo(105, 300 - 50 * i);

void CTwoDlg::OnBnClickedButton2() { }

void CTwoDlg::OnBnClickedButton3() {

// TODO: 在此添加控件通知处理程序代码 CDC *p; p = GetDC(); int i = 100; while (true) { }

ReleaseDC(p);

p->MoveTo(i, 300 - 100 * fun((i - 100) / 50.0)); i++;

if (i == 400 + 1)

break; Sleep(10);

p->LineTo(i, 300 - 100 * fun((i - 100) / 50.0));

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