程式設計講義----PGM10-04.cpp

[Kenad (..大拇指腫歪歪..)]

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

const int MAXLENGTH = 21;  // maximum file name length
const int MAXCHARS = 80;   // maximum line length

char file1[MAXLENGTH] = "prices.dat";

int main()
{
  int ch;
  char line[MAXCHARS];
  ifstream in_file;

  in_file.open(file1);

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

  cout << endl;   // start on a new line

    // now read the file
  while( (ch = in_file.peek()) != EOF )
  {
    in_file.getline(line,MAXCHARS,'\n');
    cout << line << endl;
  }

  in_file.close();

  return 0;
}

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