show.cpp

数据结构大作业

// show.cpp : implementation file
//

#include "stdafx.h"
#include "salsary.h"
#include "show.h"

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

/////////////////////////////////////////////////////////////////////////////
// show dialog


show::show(CWnd* pParent /*=NULL*/)
	: CDialog(show::IDD, pParent)
{
	//{{AFX_DATA_INIT(show)
	m_get = _T("");
	//}}AFX_DATA_INIT
}


void show::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(show)
	DDX_Control(pDX, IDC_LIST1, m_list);
	DDX_Text(pDX, IDC_STATIC1, m_get);
	DDV_MaxChars(pDX, m_get, 10);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(show, CDialog)
	//{{AFX_MSG_MAP(show)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	ON_NOTIFY(NM_CLICK, IDC_LIST1, OnClickList1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// show message handlers
#include"wh.h"
BOOL show::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("用户数量");
	((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("最大年龄");
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("最小年龄");
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("平均年龄");
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("最高工资");
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("最低工资");
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("平均工资");
	((CComboBox*)GetDlgItem(IDC_COMBO2))->SetCurSel(0);
    m_list.SetExtendedStyle(LVS_EX_FULLROWSELECT|LVS_EX_GRIDLINES|LVS_EX_HEADERDRAGDROP|
	LVS_EX_ONECLICKACTIVATE|LVS_EX_FLATSB);
	m_list.InsertColumn(0,"用户名",LVCFMT_LEFT,65);
    m_list.InsertColumn(1,"姓名",LVCFMT_LEFT,65);
    m_list.InsertColumn(2,"年龄",LVCFMT_LEFT,65);
    m_list.InsertColumn(3,"工资",LVCFMT_LEFT,65);
//初始化列表框
	    fstream iof("C:\\user.dat",ios::binary|ios::in|ios::out);
    if(!iof)
	{cerr<<"文件不能打开"<<endl;
    return FALSE;
	}
    user_data user;
    CString User,Name,Age,Salary;
    iof.seekp(0,ios::end);
    long posEnd=iof.tellp();
    int i=0;//i用来确定输入数据的位置
    m_list.DeleteAllItems();
    iof.seekp(0,ios::beg);
    	do
    {iof.read((char*)&user,sizeof(user_data));
    User=user.user;Name=user.name;Age.Format("%d",user.age);
	Salary.Format("%d",user.salary);
    {m_list.InsertItem(i,User,1);
	m_list.SetItemText(i,1,Name);
	m_list.SetItemText(i,2,Age);
	m_list.SetItemText(i,3,Salary);
	}
    if(i==0)
    i++;
    }while(iof.tellp()!=posEnd);

	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
    #include"wh.h"
    void show::OnButton1() 
	{
    int index;	// TODO: Add your control notification handler code here
	index=((CComboBox*)GetDlgItem(IDC_COMBO2))->GetCurSel();
    ((CComboBox*)GetDlgItem(IDC_COMBO2))->GetLBText(index,m_choose);
    //进行数据统计
    int number=0;int oldAge=0;int youngAge;double aveAge=0;int highSal=0;
	int lowSal;double aveSal=0;
    fstream iof("C:\\user.dat",ios::binary|ios::in|ios::out);
    if(!iof)
	{cerr<<"文件不能打开"<<endl;
    return ;
	}
    iof.seekp(0,ios::end);
    long posEnd=iof.tellp();    
    user_data user;
    iof.seekp(0,ios::beg);
    do{iof.read((char*)&user,sizeof(user_data));
    if(user.age>oldAge){oldAge=user.age;}
    if(user.age<youngAge||number==0){youngAge=user.age;}
	aveAge+=user.age;
    if(user.salary>highSal){highSal=user.salary;}
    if(user.salary<lowSal||number==0){lowSal=user.salary;}
    aveSal+=user.salary;
	number++;
	}while(iof.tellp()!=posEnd);
    aveSal/=number;
	aveAge/=number;
	CString cNumber,cOldAge,cYoungAge,cAveAge,cHighSal,cLowSal,cAveSal;
    cNumber.Format("%d",number);    
    cOldAge.Format("%d",oldAge);
    cYoungAge.Format("%d",youngAge);
    cAveAge.Format("%f",aveAge);
    cHighSal.Format("%d",highSal);
    cLowSal.Format("%d",lowSal);
    cAveSal.Format("%f",aveSal);
    switch(index)
    {case 0:m_get=cNumber;break;
    case 1:m_get=cOldAge;break;    
    case 2:m_get=cYoungAge;break;
    case 3:m_get=cAveAge;break;
    case 4:m_get=cHighSal;break;
    case 5:m_get=cLowSal;break;
    case 6:m_get=cAveSal;break;}
    UpdateData(FALSE);
	}

void show::OnButton2() 
{
EndDialog(1);	// TODO: Add your control notification handler code here
	
}

void show::OnClickList1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	
	*pResult = 0;
}