以下代码首先检查指定的文件夹是否存在，若存在则删除之，否则创建之。接下来移动文件夹，在其中创建文件并统计文件夹中文件数目。
using System;
using System.IO;
class Test
{
public static void Main()
{
// Specify the directories you want to manipulate.
string path = @"c:\MyDir";
string target = @"c:\TestDir";
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());
}
finally {}
}
}
