遍历文件夹里的文件名

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

class Program
    {
        static int File_Quantity = 0;
        static void Main(string[] args)
        {
            DirectoryInfo TheFolder = new DirectoryInfo(@"123\");//新建一个DirectoryInfo对象
            foreach (FileInfo NextFile in TheFolder.GetFiles("*.*"))//要读取的文件的格式
            {
                Console.WriteLine(NextFile.Name.Replace(".txt", ""));//把文件名的后序清空，并打印
                File_Quantity += 1;
            }
            Console.WriteLine("一共有{0}个文件",File_Quantity);
            File_Quantity = 0;
            Console.ReadLine();
        }
   }