practice/ConsoleCore/RobotFiler.cs

using ClassLib000.Walker;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleCore
{
    class RobotFiler
    {
        internal static void SaveFile(string sFileName, Appartment app)
        {
            File.WriteAllText(sFileName, app.GetContent(), Encoding.UTF8);
            // byte[] bt = Encoding.UTF8.GetBytes(app.GetContent());
            // File.WriteAllBytes(sFileName, bt);
        }

        internal static void WriteLargeStream(string sFileName, int gb)
        {
            byte[] bt = new byte[] { 67, 67, 67 };
            using (Stream file = File.Create(sFileName, 1024 * 64, FileOptions.DeleteOnClose))
            {
                DateTime dtFrom = DateTime.Now;
                Console.WriteLine($"{dtFrom:HHmmss}");
                long ll = ((long)1024) * 1024 * 1024 * gb;
                for (long ii = 0; ii < ll; ii++)
                {
                    file.Write(bt);
                    // file.WriteByte(67);
                }
                DateTime dtTo = DateTime.Now;
                TimeSpan ts = dtTo - dtFrom;
                Console.WriteLine($"{sFileName}: {ts.TotalSeconds} sec");
                Console.ReadKey();
            }
        }

        internal static void WriteLargeText(string sFileName, long rowCount)
        {
            byte[] bt = new byte[] { 67, 67, 67 };
            using (Stream file = File.Create(sFileName, 1024 * 64, FileOptions.DeleteOnClose))
            {
                DateTime dtFrom = DateTime.Now;
                Console.WriteLine($"{dtFrom:HHmmss}");
                using (StreamWriter writer = new StreamWriter(file, Encoding.UTF8))
                {
                    for (long ii = 0; ii < rowCount; ii++)
                    {
                        writer.WriteLine($"{dtFrom:HHmmss}");
                    }
                }
                DateTime dtTo = DateTime.Now;
                TimeSpan ts = dtTo - dtFrom;
                Console.WriteLine($"{sFileName}: {ts.TotalSeconds} sec");
                Console.ReadKey();
            }
        }
    }
}