C# 当日の日付のフォルダを作成

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

using System.IO;
using System.Diagnostics;

namespace 当日フォルダ作成
{
    class Program
    {
        static void Main(string[] args)
        {
            string dir_path = @"D:\Dropbox\My Cloud Work\Text\Project\" + DateTime.Now.ToString("yyyyMMdd");
            if(Directory.Exists(dir_path))
            {
                Process.Start(dir_path);
            }
            else
            {
                Console.WriteLine("フォルダが存在しません。作成しますか？");
                string yn = Console.ReadLine();
                if (yn == "y")
                {
                    Directory.CreateDirectory(dir_path);
                    File.Create(dir_path + "\\" + DateTime.Now.ToString("yyyyMMdd") + ".txt");
                    Process.Start(dir_path);
                }
            }

        }
    }
}

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.IO;

using System.Diagnostics;

namespace 当日フォルダ作成

{

class Program

{

static void Main(string[] args)

{

string dir_path = @"D:\Dropbox\My Cloud Work\Text\Project\" + DateTime.Now.ToString("yyyyMMdd");

if(Directory.Exists(dir_path))

{

Process.Start(dir_path);

}

else

{

Console.WriteLine("フォルダが存在しません。作成しますか？");

string yn = Console.ReadLine();

if (yn == "y")

{

Directory.CreateDirectory(dir_path);

File.Create(dir_path + "\\" + DateTime.Now.ToString("yyyyMMdd") + ".txt");

Process.Start(dir_path);

}