C# 文件有关操作

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO; namespace CreateFile{    class Program    {        static void Main(string[] args)        {            string path = @"f:\MyDir\test\test";            string target = @"f:\TestDir";            Directory.CreateDirectory(path);            try            {                // Determine whether the directory exists.                if (!Directory.Exists(path))                {                    // Create the directory it does not exist.                    Directory.CreateDirectory(path);                }                 if (Directory.Exists(target))                {                    // Delete the target to ensure it is not there.                    Directory.Delete(target, true);                }                 // Move the directory.                Directory.Move(path, target);                 // Create a file in the directory.                File.CreateText(target + @"\myfile.txt");                 // Count the files in the target directory.                Console.WriteLine("The number of files in {0} is {1}",                    target, Directory.GetFiles(target).Length);            }            catch (Exception e)            {                Console.WriteLine("The process failed: {0}", e.ToString());            }             Console.ReadKey();        }    }}