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📄 gradedlg.cpp

📁 单科课程成绩管理系统
💻 CPP
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// gradeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "grade.h"
#include "gradeDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CGradeDlg dialog

CGradeDlg::CGradeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGradeDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGradeDlg)
	m_Code = _T("");
	m_EGrade = _T("");
	m_MGrade = _T("");
	m_Name = _T("");
	m_UGrade1 = _T("");
	m_UGrade2 = _T("");
	m_UGrade3 = _T("");
	m_UGrade4 = _T("");
	m_FGrade = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGradeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGradeDlg)
	DDX_Control(pDX, IDC_LIST1, m_List_Name);
	DDX_Text(pDX, IDC_Code, m_Code);
	DDX_Text(pDX, IDC_EGrade, m_EGrade);
	DDX_Text(pDX, IDC_MGrade, m_MGrade);
	DDX_Text(pDX, IDC_Name, m_Name);
	DDX_Text(pDX, IDC_UGrade1, m_UGrade1);
	DDX_Text(pDX, IDC_UGrade2, m_UGrade2);
	DDX_Text(pDX, IDC_UGrade3, m_UGrade3);
	DDX_Text(pDX, IDC_UGrade4, m_UGrade4);
	DDX_Text(pDX, IDC_FGrade, m_FGrade);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGradeDlg, CDialog)
	//{{AFX_MSG_MAP(CGradeDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_Insert, OnInsert)
	ON_BN_CLICKED(IDC_Showlist, OnShowlist)
	ON_LBN_DBLCLK(IDC_LIST1, OnDblclkList1)
	ON_BN_CLICKED(IDC_Del, OnDel)
	ON_BN_CLICKED(IDC_Find, OnFind)
	ON_BN_CLICKED(IDC_Load, OnLoad)
	ON_BN_CLICKED(IDC_Modify, OnModify)
	ON_BN_CLICKED(IDC_QueList, OnQueList)
	ON_BN_CLICKED(IDC_Stat, OnStat)
	ON_BN_CLICKED(IDC_Save, OnSave)
	ON_BN_CLICKED(IDC_DelAll, OnDelAll)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGradeDlg message handlers

BOOL CGradeDlg::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
	link_No = 0;//节点个数
	list_No = -1;//节点序列号
	Grade.InitList();
	char* pFileName = "c:/grade.txt";
	PbText.Open(pFileName,CFile::modeCreate | CFile::modeReadWrite);
	PbText.Close();
   	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

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

void CGradeDlg::OnInsert() 
{
	Head = Grade.GetHead();
	UpdateData(TRUE);
	CString ftostr;
	Name = m_Name;
	Code = m_Code;
	MGrade = m_MGrade;
	EGrade=m_EGrade;
	UGrade1=m_UGrade1;
	UGrade2=m_UGrade2;
	UGrade3=m_UGrade3;
	UGrade4=m_UGrade4;
	FGrade=m_FGrade;
	Grade.Insert(Head,Code,Name,MGrade,EGrade,UGrade1,UGrade2,UGrade3,UGrade4,FGrade,link_No);
	
	 if(Grade.Inok)
	   {
	   link_No = link_No+1;
	   }
	
	OnShowlist();	
}

void CGradeDlg::OnShowlist() 
{
	Head=Grade.GetHead();
	Grade.QueList(Head,link_No);
	Link Pr=Head->Next;
	m_List_Name.ResetContent();
	while(Pr!=NULL)
	{
	   CString rlt;
	   CString vol;
		vol = "，";
	   CString Item;
		Item=Pr->Code+vol+Pr->Name+vol+Pr->MidGrade+vol+Pr->EndGrade+vol+Pr->UGrade1+vol+Pr->UGrade2+vol+Pr->UGrade3+vol+Pr->UGrade4+vol+Pr->FGrade;
	   m_List_Name.AddString(Item);
	   Pr=Pr->Next;
	}
	
	SetDlgItemText(IDC_Name,"");
	SetDlgItemText(IDC_Code,"");
 	SetDlgItemText(IDC_MGrade,"");
 	SetDlgItemText(IDC_EGrade,"");
	SetDlgItemText(IDC_UGrade1,"");
	SetDlgItemText(IDC_UGrade2,"");
 	SetDlgItemText(IDC_UGrade3,"");
 	SetDlgItemText(IDC_UGrade4,"");
	SetDlgItemText(IDC_FGrade,"");

}

void CGradeDlg::OnCancel() 
{
	// TODO: Add extra cleanup here
	
	CDialog::OnCancel();
}

void CGradeDlg::OnDblclkList1() 
{
	Link Pr;
	list_No = m_List_Name.GetCurSel() ;
	Pr = Grade.GetList(Head,list_No);
	
	SetDlgItemText(IDC_Code,Pr->Code);
	SetDlgItemText(IDC_Name,Pr->Name);
	
	SetDlgItemText(IDC_MGrade,Pr->MidGrade);
	SetDlgItemText(IDC_EGrade,Pr->EndGrade);
	SetDlgItemText(IDC_UGrade1,Pr->UGrade1);
	SetDlgItemText(IDC_UGrade2,Pr->UGrade2);
 	SetDlgItemText(IDC_UGrade3,Pr->UGrade3);
 	SetDlgItemText(IDC_UGrade4,Pr->UGrade4);
	SetDlgItemText(IDC_FGrade,Pr->FGrade);

}

void CGradeDlg::OnDel() 
{
	Grade.Delete(Head,list_No);
	if(Grade.Delok)
	{
	   link_No = link_No-1;
	}
	OnShowlist(); 
}

void CGradeDlg::OnFind() 
{
	Link Tag;
	CString name;
	UpdateData(TRUE);
	name= m_Name;
	Head = Grade.GetHead();
	Tag = Grade.Find(Head,name);
	if(Tag != NULL )
	{
	    SetDlgItemText(IDC_Code,Tag->Code);
		SetDlgItemText(IDC_Name,Tag->Name);
	    SetDlgItemText(IDC_MGrade,Tag->MidGrade);
	    SetDlgItemText(IDC_EGrade,Tag->EndGrade);
		SetDlgItemText(IDC_EGrade,Tag->EndGrade);
		SetDlgItemText(IDC_UGrade1,Tag->UGrade1);
		SetDlgItemText(IDC_UGrade2,Tag->UGrade2);
 		SetDlgItemText(IDC_UGrade3,Tag->UGrade3);
 		SetDlgItemText(IDC_UGrade4,Tag->UGrade4);
		
	}
	else
	{
		MessageBox("没有找到该学生");
		SetDlgItemText(IDC_Code,"");

		SetDlgItemText(IDC_Name,"");
	    SetDlgItemText(IDC_MGrade,"");
	    SetDlgItemText(IDC_EGrade,"");
		SetDlgItemText(IDC_UGrade1,"");
		SetDlgItemText(IDC_UGrade2,"");
 		SetDlgItemText(IDC_UGrade3,"");
 		SetDlgItemText(IDC_UGrade4,"");


	}	
	
}

void CGradeDlg::OnLoad() 
{
	CString Filter;
	CString str;
	Filter = "文本文件(*.txt)|*.txt||";
	CFileDialog FileDlg (TRUE, NULL, NULL, OFN_HIDEREADONLY, Filter);
	//////以上为选择打开文件固定操作

	if (FileDlg.DoModal () == IDOK)
	{
		Grade.InitList();
		Head = Grade.GetHead();
		LONG p,q,length,len;   //p记录前一","位置，q记录后一","位置
		CString Date;
		CString code,name,mgrade,egrade,ugrade1,ugrade2,ugrade3,ugrade4,fgrade;
		
		char *temp,*temp1;
		CString filename=FileDlg.GetPathName();
		CFile f;
		f.Open(filename,CFile::modeReadWrite);
		p=q=-1;
		link_No = 0;
		length=f.GetLength();
		temp=new char [length];
		f.Seek(0,CFile::begin);//定位于文件开头
		f.Read(temp,length);//读取文件
		Date = temp;
		while(q<length-1)
		{
			
			q=Date.Find(",",q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1= new char [len];
 			f.Read(temp1,len);
			code = temp1;
			code = code.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(",",q+1);
            f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			name = temp1;
			name = name.Mid(0,len);
			p=q;

			q=Date.Find(",",q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			mgrade = temp1;
			mgrade = mgrade.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			egrade = temp1;
			egrade = egrade.Mid(0,len);
			delete temp1;
			p=q;
			
			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			ugrade1 = temp1;
			ugrade1 = ugrade1.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			ugrade2 = temp1;
			ugrade2 = ugrade2.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			ugrade3 = temp1;
			ugrade3 = ugrade3.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			ugrade4 = temp1;
			ugrade4 = ugrade4.Mid(0,len);
			delete temp1;
			p=q;

			q=Date.Find(',',q+1);
 			f.Seek(p+1,CFile::begin);
			len = q-p-1;
			temp1=new char [len];
 			f.Read(temp1,len);
			fgrade = temp1;
			fgrade = fgrade.Mid(0,len);
			delete temp1;
			p=q;

			Grade.Insert(Head,code,name,mgrade,egrade,ugrade1,ugrade2,ugrade3,ugrade4,fgrade,link_No);
			link_No = link_No + 1;	
		}
		delete temp;
		m_List_Name.ResetContent();
		OnShowlist();

	}



}

void CGradeDlg::OnModify() 
{
	int p;
	p = link_No;
	link_No = list_No;
	OnInsert();
	Grade.Delete(Head,list_No+1);
	OnShowlist(); 
	link_No = p;
	
}

void CGradeDlg::OnQueList() 
{
	Head=Grade.GetHead();
	Grade.QueList(Head,link_No);
	OnShowlist();
	
}

void CGradeDlg::OnStat() 
{

	Head=Grade.GetHead();
	Link p=Head->Next;
	int i=0;
	float total=0;
	float average=0;
	int zero_six=0;
	int six_seven=0;
	int seven_eight=0;
	int eight_nine=0;
    int nine_ten=0;
	int ten=0;
	CString str;
	ofstream fout("c:\\static.txt");
	while(p!=NULL)
	{	i++;
		str.Format("%d",i);
		p->Order=str;
		fout<<"学号:"<<atoi(p->Code);//<<"姓名:"<<p->Name<<"期中成绩:"<<p->MidGrade<<"期末成绩:"<<p->EndGrade<<"平时成绩1:"<<p->UGrade1<<<<"平时成绩2:"<<p->UGrade2<<"平时成绩3:"<<p->UGrade3<<"平时成绩4:"<<p->UGrade4<<endl;
		//fout<<"姓名:"<<p->Name;
		fout<<"	期中成绩:"<<atof(p->MidGrade);
		fout<<"	期末成绩:"<<atof(p->EndGrade);
		fout<<"	平时成绩一:"<<atof(p->UGrade1);
		fout<<"	平时成绩二:"<<atof(p->UGrade2);
		fout<<"	平时成绩三:"<<atof(p->UGrade3);
		fout<<"	平时成绩四:"<<atof(p->UGrade4);
		fout<<"	总成绩"<<atof(p->FGrade);
		
		fout<<endl;
		fout<<endl;
		total=total+atof(p->FGrade);
		if((atof(p->FGrade)>=0)&&(atof(p->FGrade)<60))        ++zero_six;
			else if((atof(p->FGrade)>=60)&&(atof(p->FGrade)<70))  ++six_seven;
			else if((atof(p->FGrade)>=70)&&(atof(p->FGrade)<80))  ++seven_eight;
			else if((atof(p->FGrade)>=80)&&(atof(p->FGrade)<90))  ++eight_nine;
			else if((atof(p->FGrade)>=90)&&(atof(p->FGrade)<100)) ++nine_ten;
			else if(atof(p->FGrade)==100)						  ++ten;
			else NULL;
		p=p->Next;

	}
	average=total/i;


fout<<"0－59分的人数为:"<<zero_six;
fout<<"\n60－69分的人数为:"<<six_seven;
fout<<"\n70-79分的人数为:"<<seven_eight;	
fout<<"\n80-89分的人数为:"<<eight_nine;
fout<<"\n90-99分的人数为:"<<nine_ten;
fout<<"\n100分的人数为:"<<ten;
fout<<"\n所有人的平均分为:"<<average;
}

void CGradeDlg::OnSave() 
{
	
	CString Filter;
	Filter = "文本文件(*.txt)|*.txt||";

	CFileDialog FileDlg (FALSE, ".txt", NULL, OFN_OVERWRITEPROMPT, Filter);
	if(FileDlg.DoModal()==IDOK)
	{
		CString filename=FileDlg.GetPathName();
		PbText.Open(filename,CFile::modeCreate | CFile::modeReadWrite);
	    Link Pr;
		int DatePos;
		DatePos = 0;
		for(int i=0;i<link_No;i++)
		{
	        Pr = Grade.GetList(Head,i);
	        CString vol,rlt;
	        CString Item;
	        
	        vol = ",";
	        Item=Pr->Code+vol+Pr->Name+vol+Pr->MidGrade+vol+Pr->EndGrade+vol+Pr->UGrade1+vol+Pr->UGrade2+vol+Pr->UGrade3+vol+Pr->UGrade4+vol+Pr->FGrade+vol;
	  		PbText.Write(Item,Item.GetLength());
			DatePos = DatePos+Item.GetLength();
		}
		PbText.Close();
	}


}

void CGradeDlg::OnDelAll() 
{
	Grade.InitList();
	link_No = 0;
	OnShowlist(); 
	
}

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