MFC结构体数据文件读写实例

程序功能将结构体内数组数据写入文件和读出

2Dlg.h中代码:

typedef struct Student {int nNum[1000];float fScore;CString sss;}stu;
class CMy2Dlg : public CDialog
{
// Construction
public:CMy2Dlg(CWnd* pParent = NULL);	// standard constructorstu stu1;
...
}

2Dlg.cpp中代码:

BOOL CMy2Dlg::OnInitDialog()
{CDialog::OnInitDialog();
for(int i=0; i<=5 ; i++){stu1.nNum[i] =i;}
...
}void CMy2Dlg::OnButton1() 
{CString strFileName,m_strCurDataPath;strFileName.Format("%s%s.MBD",m_strCurDataPath,CTime::GetCurrentTime().Format("%Y%m%d%H%M%S"));CFile file;file.Open(strFileName,CFile::modeCreate|CFile::modeWrite);        file.Write(&stu1, sizeof(stu1));
}void CMy2Dlg::OnButton2() 
{CString  strFileName;CFileDialog dlg(TRUE,"",strFileName,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"数据文件(*.MBD)|*.MBD||");if(dlg.DoModal() == IDOK){		strFileName = dlg.GetPathName();CFile file;file.Open(strFileName,CFile::modeRead);file.Read(&stu1, sizeof(stu1));
for(int i=1;i<=5;i++)
{CString str1;
str1.Format("%d",stu1.nNum[i]);SetDlgItemText(IDC_STATIC1,str1);  	Sleep(1000);
}
}
}

运行程序