C# Directory和DirectoryInfo类(文件目录操作)

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");
            //判断当前目录是否存在
            if (!Directory.Exists(dirPath))
            {
                //创建目录
                Directory.CreateDirectory(dirPath);
                Console.WriteLine("创建一个目录{0}", dirPath);
            }
            else
            {
                Console.WriteLine("目录{0}已存在", dirPath);
            }
            //实例化文件对象
            FileInfo file = new FileInfo(filePath);
            //判断文件是否存在
            if (!file.Exists)
            {
                //创建文件
                file.Create();
                Console.WriteLine("创建文件{0}",filePath);
            }
            else
            {
                Console.WriteLine("文件{0}已存在", filePath);
            }
            Console.ReadKey();
        }
    }
}