MyDir

using System;
using System.IO;
using System.Linq;
using System.Text;
using static System.Console;

namespace _1412_18
{
    class MyDir
    {
        public static void Save(FileInfo fi) {
            using (FileStream fs = fi.Open(FileMode.Create, FileAccess.Write, FileShare.None))
            {
                string str = "Несе Галина воду";
                byte[] bs = Encoding.Unicode.GetBytes(str);
                fs.Write(bs, 0, bs.Length);
                WriteLine($"File {fi.FullName} save");
            }
        }

        public static string  Load(FileInfo fi)
        {
            using (FileStream fo = fi.OpenRead())
            {
                byte[] bs = new byte[fo.Length];
                fo.Read(bs, 0, bs.Length);
                string str =Encoding.Unicode.GetString(bs);
                WriteLine($"File {fi.FullName} is read");
                return str;
            }
        }

        static void InfoDisk()
        {
            DriveInfo[] drives = DriveInfo.GetDrives();
            foreach (DriveInfo item in drives)
            {
                WriteLine($"Name {item.Name} ");
                WriteLine($"DriveType {item.DriveType} ");
                if (item.IsReady)
                {
                    WriteLine($"TotalSize {item.TotalSize} ");
                    WriteLine($"TotalFreeSpace {item.TotalFreeSpace} ");
                    WriteLine($"VolumeLabel {item.VolumeLabel} ");
                    WriteLine($"RootDirectory {item.RootDirectory} ");
                }

            }



        }

        static void DirInfo()
        {
            DirectoryInfo dir = new DirectoryInfo(@"d:\");
            if (dir.Exists)
            {
                WriteLine(dir.FullName);
                WriteLine(dir.CreationTime);
                foreach (var item in dir.GetDirectories())
                {
                    WriteLine("folder -> "+ item);
                }
                foreach (var item in dir.GetFiles("*.jpg"))
                {
                    WriteLine("file -> " + item);
                }

            }
            else
            {
                WriteLine("Not foud");
            }


        }
        public static void Run() {
            //DirInfo();
            InfoDisk();


            DirectoryInfo dir = new DirectoryInfo(@"d:\test");
            if (!dir.Exists)
                dir.Create();
            DirectoryInfo dir1 = dir.CreateSubdirectory("subdir1");
            WriteLine(dir1.FullName);
            FileInfo finfo = new FileInfo(dir1+@"\new.bin");
            Save(finfo);
            WriteLine(Load(finfo));

            //string newfolder = @"D:\test10";
            //if (Directory.Exists(newfolder) == false)
            //    dir.MoveTo(newfolder);
            try
            {
                dir1.Delete(true);
            }
            catch (Exception e) {
                WriteLine(e.Message);
            }


            string fname = "test.txt";

            FileInfo iffile = new FileInfo(fname);

            if (iffile.Exists)
            {
                WriteLine("FullName -> " + iffile.FullName);
                WriteLine("CreationTime -> " + iffile.CreationTime);
                WriteLine("Size -> " + iffile.Length);

                // string text = File.ReadAllText(iffile.FullName);
                //WriteLine(text);

                string[] arrstr = File.ReadAllLines(iffile.FullName);
                foreach (var item in arrstr)
                {
                    WriteLine(item);
                }
                iffile.Delete();
                WriteLine($"File {fname} is deleted");
            }
            else {
                string[] arrstr = { "Я", "не", "виконую", "домашню", "роботу", ", так як", "я", "ледарюга", "!!!" };
                File.WriteAllLines(fname,arrstr);
                //string tt = "Жили у бабусі два веселих гусі";
                //File.WriteAllText(iffile.FullName, tt);

                File.AppendAllText(iffile.FullName, "І ще два гусі");


                WriteLine($"File {fname} is created");

            }







        }

    }
}