first1dlg.cpp

来自「读取TXT文件中的数据」· C++ 代码 · 共 229 行

// first1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "first1.h"
#include "first1Dlg.h"
#include "fstream.h"
#include "afxdlgs.h"
#include "afx.h"
#include "stdio.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFirst1Dlg dialog

CFirst1Dlg::CFirst1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CFirst1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CFirst1Dlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CFirst1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CFirst1Dlg)
	DDX_Control(pDX, IDC_EDIT1, m_Result);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CFirst1Dlg, CDialog)
	//{{AFX_MSG_MAP(CFirst1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CFirst1Dlg message handlers

BOOL CFirst1Dlg::OnInitDialog()
{
	CDialog::OnInitDialog();
	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 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
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CFirst1Dlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, 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 CFirst1Dlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// 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;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CFirst1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CFirst1Dlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	//读取文件
	CString strfilename;
	CString m_strnum;
	int i=0;
	CFileDialog dlg(TRUE, ".txt",NULL, OFN_HIDEREADONLY,"Text Files(*.txt)|*.txt",this);
	dlg.DoModal();
	strfilename=dlg.GetPathName();
	CStdioFile file;
	file.Open(strfilename,CFile::modeRead);
	while(!file.ReadString(m_strnum)==NULL)
	{
		grade[i]=atof(m_strnum);
		i++;
	}
	file.Close();
    //数据处理
	for(int q=0;q<=33;q++)
	for(int f=q+1;f<=34;f++)
	{
		float temp;
		if(grade[q]>=grade[f])
		{
			temp=grade[q];
			grade[q]=grade[f];
			grade[f]=temp;
		}
	}
	float sum;
	sum=0;
	for(int n=0;n<=34;n++)
		sum=sum+grade[n];
	min=grade[0];
	max=grade[34];
	avg=sum/35;
	for(int m=0;m<=34;m++)
		error=(grade[m]-avg)*(grade[m]-avg);

	//输出文件
	CStdioFile file1;
	CString min1,max1,avg1,error1;
	min1.Format("%f",min);
	max1.Format("%f",max);
	avg1.Format("%f",avg);
	error1.Format("%f",error);
	file1.Open("数据输出.txt",CFile::modeReadWrite|CFile::typeText|CFile::modeCreate);
	CString outstr="最小值："+min1+"\n"+"最大值："+max1+"\n"+
		"平均值："+avg1+"\n"+"平差值："+error1+"\n";
	file1.WriteString(outstr);
	file1.Close();
	MessageBox("成功输出数据！",NULL,MB_OK);
}