C++ dasturlash tilida ma’lumotlarning faylli toifasi

1- misol. uqish.txt fayldan ikkita sonni o’qib, ularni yig’indisini yozish.txt fayliga yozish dasturini ko’rib chiqamiz.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace ConsoleApplication1 {

class Program {

static void Main(string[] args) {

StreamWriter yozish = new StreamWriter("d:\\yozish.txt");

StreamReader uqish = new StreamReader("d:\\uqish.txt");

yozish.WriteLine(int.Parse(uqish.ReadLine()) +

int.Parse(uqish.ReadLine()));

yozish.Close();

uqish.Close();

} }

Dastur natijasi: dasturni ishlatishdan oldin uqish.txt faylda 2 ta son kiritish kerak, so’ng dastur ikkita sonni o’qib, ularni yig’indisini yozish.txt fayliga yozadi. Natijani ko’rish uchun yozish.txt faylni ochib ko’rish kerak

2-misol. fayl davomidan ma’lumotlarni yozish.

class Program {

static void Main(string[] args){

/*textFile.txt faylining yangi satridan "yangi satr" so'zini qo'shadi

agar bu fayl bo'lmasa o'zi yaratib "yangi satr" so'zini qo'shadi*/

StreamWriter a;

a = File.AppendText("d:\\textFile.txt");

a.WriteLine("yangi satr");

a.Close();

} }