程式設計講義----PGM10-1B.cpp

[Kenad (..大拇指腫歪歪..)]

#include <fstream.h>
#include <stdlib.h>

const int MAXLENGTH = 21;   // maximum file name length

char file1[MAXLENGTH];

int main()
{
  ifstream in_file;

  cout << "Please enter the name of the file you wish to open: ";
  cin  >> file1;

  in_file.open(file1);  // open the file

  if (in_file.fail())  // check for successful open
  {
    cout << "\nThe file named " << file1 << " was not successfully opened"
         << "\n Please check that the file currently exists." << endl;
    exit(1);
  }

  cout << "\nThe file has been successfully opened for reading.\n";

  return 0;
}

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