VC:文件复制(CFile类、文件对话框、edit控件)

1、打开一个文件内的内容复制到另一个文件中：

2、打开要复制的文件：

       CFileDialog dlg(TRUE,"*","",OFN_ALLOWMULTISELECT,NULL);

       if(IDOK==dlg.DoModal())

       {

              CString str=dlg.GetPathName();

              SetDlgItemText(IDC_EDIT1,str);

       }

3、实施：

void CCopyFileDlg::OnCopyfile()

{

       // TODO: Add your control notification handler code here

       CString filename1="";

       CString filename2="";

       GetDlgItemText(IDC_EDIT1,filename1);

       CFileDialog dlg(false,"","",OFN_ALLOWMULTISELECT,NULL);

       if(IDOK==dlg.DoModal())

       {

              filename2=dlg.GetFileName();

              CFile file1;

              CFile file2;

              file1.Open(filename1,CFile::modeReadWrite);

              file2.Open(filename2,CFile::modeCreate|CFile::modeReadWrite);

              char * c;

              c=new char[file1.GetLength()];

              file1.Read(c,file1.GetLength());

              file2.Write(c,file1.GetLength());

              file1.Close();

              file2.Close();

              //delete c;

              AfxMessageBox("文件复制成功");

       }

}