c#的第一个程序，读出D:下面的所有文件

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

namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {            Console.WriteLine("This program lists all the files in the directory:");

            System.IO.DirectoryInfo dir = new System.IO.DirectoryInfo(@"D:/");

            foreach (System.IO.FileInfo file in dir.GetFiles("*.*"))            {                Console.WriteLine("{0}, {1}", file.Name, file.Length);            }            Console.ReadLine();

        }    }}