對目錄操作例子:

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

namespace DirectoryandDirectoryInfo
{
    class Program
    {
        static void Main(string[] args)
        {
            string dirPath = "
 
d:\\dir2";
            string filePath = string.Format("{0}\\{1}", dirPath, "test.txt");
            //判斷當前目錄是否存在
            if (!Directory.Exists(dirPath))
            {
                //創建目錄
                Directory.CreateDirectory(dirPath);
                Console.WriteLine("創建一個目錄{0}", dirPath);
            }
            
 
else
            {
                Console.WriteLine("目錄{0}已存在", dirPath);
            }
            //實例化文件對象
            FileInfo file = new FileInfo(filePath);
            //判斷文件是否存在
            if (!file.Exists)
            {
                //創建文件
                file.Create();
                Console.WriteLine(
 
"創建文件{0}",filePath);
            }
            else
            {
                Console.WriteLine("文件{0}已存在", filePath);
            }
            Console.ReadKey();
        }
    }
}

C# Directory和DirectoryInfo類(文件目錄操作)