b06040403_a_1dlg.cpp

题目：分数统计 要求：（1）输入某班级学生的姓名、分数； （2）对（1）的分数进行降幂排列并输出； （3）具有输入输出界面。

// B06040403_a_1Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "B06040403_a_1.h"
#include "B06040403_a_1Dlg.h"
#include "Student.h"
#include "string.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()

/////////////////////////////////////////////////////////////////////////////
// CB06040403_a_1Dlg dialog

CB06040403_a_1Dlg::CB06040403_a_1Dlg(CWnd* pParent /*=NULL*/)
	: CDialog(CB06040403_a_1Dlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CB06040403_a_1Dlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CB06040403_a_1Dlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CB06040403_a_1Dlg)
	DDX_Control(pDX, IDC_LIST1, m_MyList);
	DDX_Control(pDX, IDC_EDIT3, m_Grade);
	DDX_Control(pDX, IDC_EDIT2, m_Name);
	DDX_Control(pDX, IDC_EDIT1, m_Number);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CB06040403_a_1Dlg, CDialog)
	//{{AFX_MSG_MAP(CB06040403_a_1Dlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnAdd)
	ON_BN_CLICKED(IDC_BUTTON2, OnOpen)
	ON_BN_CLICKED(IDC_BUTTON3, OnSave)
	ON_BN_CLICKED(IDC_BUTTON4, OnDel)
	ON_BN_CLICKED(IDC_BUTTON5, OnDelAll)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CB06040403_a_1Dlg message handlers

BOOL CB06040403_a_1Dlg::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

	m_MyList.SetExtendedStyle(LVS_EX_FULLROWSELECT);
	CRect rt;
	m_MyList.GetClientRect(&rt);
	m_MyList.InsertColumn(0,"学号",LVCFMT_LEFT,rt.right/3,0);
	m_MyList.InsertColumn(1,"姓名",LVCFMT_LEFT,rt.right/3,0);
	m_MyList.InsertColumn(2,"成绩",LVCFMT_LEFT,rt.right/3,0);
	num=0;
	

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

void CB06040403_a_1Dlg::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 CB06040403_a_1Dlg::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 CB06040403_a_1Dlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CB06040403_a_1Dlg::OnAdd() 
{
	// TODO: Add your control notification handler code here
	char Number[10],Name[10],Grade[4];
	for(int i=0;i<10;i++)
	{
		Number[i]=NULL;
		Name[i]=NULL;
		Grade[i]=NULL;
	}                               //初始化
	
	m_Number.GetWindowText(Number,10);
	m_Name.GetWindowText(Name,10);
	m_Grade.GetWindowText(Grade,4);         //以字符串形式获取学号、姓名、成绩
	if(strlen(Number)==0 | strlen(Name)==0 | strlen(Grade)==0)  //如果有一样没输全
	{
		MessageBox("信息没有填写完整!");
	}
	int flag=0,flag1=0,flag2=0;
	for(int m=0;m<4;m++)
	{
		if(Grade[m]=='.')
		{
			flag=1;
			break;
		}
	}
	for(m=0;Grade[m]!='\0';m++)
	{
		if(Grade[m]<'0'||Grade[m]>'9')
		{
			flag2=1;
			break;
		}
	}
	for(i=0;i<num;i++)
	{
		if(strcmp(s[num].Number,Number)==0)
		{
			flag1=1;
			break;
		}

	}
	if(flag==1)
	{
		MessageBox("成绩不能为小数!请重新输入");  //设定输入分数为整数
	}
	else if(flag1==1)
	{
        MessageBox("学号不能重复!请重新输入"); 
	}
	else if(flag2==1)
	{
		MessageBox("成绩无效!请重新输入"); 
	}
	
	else
	{
		num++;
		int t;
		t=atoi(Grade);                       //把成绩转成整形
		if(t<=100&&t>=0)
		{
			strcpy(s[num].Number,Number);
			strcpy(s[num].Name,Name);
			strcpy(s[num].Grade,Grade);           //把数据存到对象中
			for(i=0;i<(strlen(Grade));i++)
			{
				s[num].grade=s[num].grade+(Grade[i]-'0')*10;
			}
			for(i=0;i<num;i++){
				char temp[4];
				for(int j=0;j<4;j++)
				{
					temp[j]=NULL;
				}
				strcpy(temp,m_MyList.GetItemText(i,2));
				int n;
				n=atoi(temp);
				if(n<=t)
				{
					m_MyList.InsertItem(i,Number);
					m_MyList.SetItemText(i,1,Name);
					m_MyList.SetItemText(i,2,Grade);
					break;
				}
			}
		}
		else
			MessageBox("分数输入错误!应为0~100,请重新输入!");
		UpdateData(true);
	}

	
}

void CB06040403_a_1Dlg::OnOpen() 
{
	// TODO: Add your control notification handler code here
   //MessageBox("如果表中现在有数据，则必须先全部删除，否则出错!");
	m_MyList.DeleteAllItems();  //先清空目前列表内容

	CFileDialog filedlg(true);
	filedlg.m_ofn.lpstrTitle="我的文件打开对话框";
	filedlg.m_ofn.lpstrFilter="Text Files(*.txt)\0*.txt\0All Files(*.*)\0*.*\0\0";
	char *ch;
	DWORD FileLenght;
	if(IDOK==filedlg.DoModal())
	{
		CFile file(filedlg.GetFileName(),CFile::modeRead);
		FileLenght=file.GetLength();
		ch=new char[FileLenght+1];
		ch[FileLenght]=0;
		file.Read(ch,FileLenght);
		file.Close();
		char number[10],name[10],grade[4];
		int Num=0;
		for(int i=0;i<FileLenght;)
		{
			for(int j=0;j<10;j++)
			{
				number[j]=NULL;
				name[j]=NULL;
			}
			for(j=0;j<4;j++)
			{
				grade[j]=NULL;
			}
			j=0;
			while(*(ch+i)!='-')
			{
				number[j]=*(ch+i);
				i++;
				j++;
			};
			i++;
			j=0;
			while(*(ch+i)!='-')
			{
				name[j]=*(ch+i);
				i++;
				j++;
			};
			i++;
			j=0;
			while(*(ch+i)!='#')
			{
				grade[j]=*(ch+i);
				i++;
				j++;
			};
			i++;
			m_MyList.InsertItem(0,number);
			m_MyList.SetItemText(0,1,name);
			m_MyList.SetItemText(0,2,grade);
			Num++;
		}
		num=Num;
		delete []ch;
	}

	
}

void CB06040403_a_1Dlg::OnSave() 
{
	// TODO: Add your control notification handler code here
	CFileDialog filedlg(false);
	filedlg.m_ofn.lpstrTitle="我的文件保存对话框";
	filedlg.m_ofn.lpstrFilter="Text Files(*.txt)\0*.txt\0All Files(*.*)\0*.*\0\0";
	filedlg.m_ofn.lpstrDefExt="txt";
	if(IDOK==filedlg.DoModal())
	{
		CFile file(filedlg.GetFileName(),CFile::modeCreate | CFile::modeWrite);
		for(int i=num-1;i>=0;i--)
		{
			file.Write(m_MyList.GetItemText(i,0),strlen(m_MyList.GetItemText(i,0)));
			file.Write("-",1);
			file.Write(m_MyList.GetItemText(i,1),strlen(m_MyList.GetItemText(i,1)));
			file.Write("-",1);
			file.Write(m_MyList.GetItemText(i,2),strlen(m_MyList.GetItemText(i,2)));
			file.Write("#",1);
		}
		file.Close();
	}

	
}

void CB06040403_a_1Dlg::OnDel() 
{
	// TODO: Add your control notification handler code here
		POSITION pos=m_MyList.GetFirstSelectedItemPosition();   
	if(pos==NULL)   
        MessageBox("你没有选中任何一项!");   
	else   
	{   
		while(pos)   
        {   
			int nItem=m_MyList.GetNextSelectedItem(pos);
			m_MyList.DeleteItem(nItem);
		}
	}

	
}

void CB06040403_a_1Dlg::OnDelAll() 
{
	// TODO: Add your control notification handler code here
	m_MyList.DeleteAllItems();
	
}