大神帮帮忙啊，错误好多，很简单，都不会，初学者

[QTQ888QTQ]

// LCBoxDlg.cpp : implementation file
//

#include "stdafx.h"
#include "LCBox.h"
#include "LCBoxDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CLCBoxDlg dialog

CLCBoxDlg::CLCBoxDlg(CWnd* pParent /*=NULL*/)
: CDialog(CLCBoxDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CLCBoxDlg)
// 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 CLCBoxDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CLCBoxDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CLCBoxDlg, CDialog)
//{{AFX_MSG_MAP(CLCBoxDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_ADD, OnAdd)
ON_BN_CLICKED(IDC_DELETE, OnDelete)
ON_NOTIFY(NM_CLICK, IDC_LIST, OnClickList)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CLCBoxDlg message handlers

BOOL CLCBoxDlg::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 CLCBoxDlg::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 CLCBoxDlg::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 CLCBoxDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void CLCBoxDlg::OnAdd()
{
// TODO: Add your control notification handler code here



//添加
UpdateData(true);
if (m_name,IsEmpty())
{
MessageBox("姓名不为空");
return;
}
m_name,TrimLeft();
m_name,TrimRight();
m_class,TrimLeft();
m_class,TrimRight();
m_sex,TrimLeft();
m_sex,TrimRight();

if ((m_list,FindStringExact(-1,m_name))!=LB_ERR)
{
MessageBox("姓名有了");
return;
}
int nIndex=m_list,AddString(m_name);
student stu;
stu.name=m_name;
stu.number=m_number;
stu.sex=m_sex;
stu.age=m_age;
stu.classno=m_class;
m_list,SetItemDataPtr(nIndex,new student(stu));

}

void CLCBoxDlg::OnDelete()
{
// TODO: Add your control notification handler code here
//删除
int nIndex=m_list,GetCurSel();
if (nIndex!=LB_ERR)
{
delete(student*)m_list,GetItemDataPtr(nIndex);
m_list,DeleteString(nIndex);
m_name=m_class=m_sex="";
m_number=m_age=0;
UpdateData(false);
}
else
MessageBox("没有选择列表");
}

void CLCBoxDlg::OnClickList(NMHDR* pNMHDR, LRESULT* pResult)
{
// TODO: Add your control notification handler code here
//list
int nIndex=m_list,GetCurSel();
if (nIndex!=LB_ERR)
{
student*pst=(student*)m_list,GetItemDataPtr(nIndex);
m_name=pst->name;
m_number=pst->number;
m_sex=pst->sex;
m_age=pst->age;
m_class=pst->classno;
UpdateData(false);
}
*pResult = 0;
}