// Operazioni di base dei file
#include <iostream> 
#include <fstream> // Libreria per i file
using namespace std;
 
int main () {
	ofstream outfile; // variabile per il file di scrittura
	// Indica dove andare a scrivere i file su disco
	outfile.open ("esempio.txt"); 
	// Scrivo i file
	outfile << "Prima riga del file.\n"; // Equivalente di cout << "...";
	outfile << "Seconda riga del file.\n";
	// Quando ho finito di utilizzare il file lo chiudo. 
	// Come chiudere il file di word dopo avere finito di scrivere
	outfile.close(); 
	// Ora guarda nella cartella in cui c'è questo file cpp, troverai esempio.txt
 
	// Uso una variabile temporanea per leggere dal file
	char s[100];
	ifstream infile; // variabile per il file di lettura
	// Indico in quale file voglio andare a leggere i dati
	infile.open ("esempio.txt"); 
	// Leggo una riga dal file e metto il contenuto in s
	infile.getline(s, 100); // Equivalente di cin.getline(...);
	// Stampo la riga
	cout << "1: "<< s << "\n";
	// Come sopra, leggo la seconda riga e poi la terza
	infile.getline(s, 100);
	cout << "2: "<< s << "\n";
	infile.getline(s, 100);
	cout << "3: "<< s << "\n"; // Cosa stampa la terza?
	// Quando ho finito di utilizzare in lettura lo chiudo.
	infile.close();
 
 
	return 0;
}
 

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