读一个文件提示对文件的访问被拒绝

Question

vc++.net中的程序实现读一个文件提示对文件的访问被拒绝，文件本身的属性不是只读的，怎么解决？
void CzDlg::OnBnClickedButton1()
{
// TODO: 在此添加控件通知处理程序代码
      CString  FilePathName;
      CFileDialog dlg(TRUE,NULL,NULL,0,"文本文件(*.txt||*.txt||");               if(dlg.DoModal()==IDOK)
          FilePathName=dlg.GetPathName();   
     char buffer[1025];
     CFile file1;
     file1.Open(FilePathName,CFile::modeRead||CFile::typeText||CFile::typeBinary);
     file1.Read(buffer,file1.GetLength());
     file1.Close();
     
     CFile file2;
     file2.Open("E:\\456.txt",CFile::modeWrite||CFile::modeCreate);
     file2.Write(buffer,file1.GetLength());
     file2.Flush(); 
     file2.Close();

Answer 1

CFile::modeRead||CFile::typeText||CFile::typeBinary
=>
CFile::modeRead|CFile::typeText;//||=>|,是位或，不是逻辑或，不可以即是文本文件又是二进制文件CFile::modeWrite||CFile::modeCreate
=>
CFile::modeWrite|CFile::modeCreate

Answer 2

我改成了这样，还是提示对文件的访问被拒绝，
CString  FilePathName;
      CFileDialog dlg(TRUE,NULL,NULL,0,"文本文件(*.txt)|*.txt||");
      if(dlg.DoModal()==IDOK)
      FilePathName=dlg.GetPathName(); char buffer[1025];
         CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
         file1.Read(buffer,file1.GetLength());
         file1.Close();

         CFile file2;
file2.Open("E:\\456.txt",CFile::modeWrite|CFile::modeCreate);
         file2.Write(buffer,file1.GetLength());
file2.Flush(); 
         file2.Close();

Answer 3

CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
还没改啊.是位或!

Answer 4

CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
这样不行吗？只是以二进制打开文件，没有加其他格式。我改成
    CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
提示没有找到一个未明名的文件改成CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
提示还是对文件的访问被拒绝。
怎么解决

Answer 5

CFile::modeRead||CFile::typeBinary
||返回一个0或1的值，是一个逻辑运算。
改成CFile::modeRead|CFile::typeBinary试试
这样是一个位运算

Answer 6

file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
==========>file1.Open(FilePathName,CFile::modeRead|CFile::typeBinary);

Answer 7

我改成
    CFile file1;
file1.Open(FilePathName,CFile::modeRead|CFile::typeBinary);
提示没有找到一个未明名的文件改成CFile file1;
file1.Open(FilePathName,CFile::modeRead||CFile::typeBinary);
提示还是对文件的访问被拒绝。
怎么解决

Answer 8

file1.Close();
...
file2.Write(buffer,file1.GetLength());你已经file1.Close()了,但后面又用到file1.GetLength(),可能不妥吧!
应该把file1.Close()放在后面!