【Coding】C# 操作文件(一)

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

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("输入已存目录");
            string sBaseDir = Console.ReadLine();
            FileAndFileInfo.ListFile(sBaseDir);
            Console.Read();
            Console.WriteLine("输入创建目录");
            string sNewFile = Console.ReadLine();

            FileAndFileInfo.CreateFile(sNewFile);
            Console.ReadLine();
            FileAndFileInfo.ReadFile(sNewFile);
            Console.ReadLine();
            FileAndFileInfo.DeleteFile(sNewFile);
            Console.WriteLine();
        }

    }

    class FileAndFileInfo
    {
        public static void ListFile(string sDir)
        {
            if (Directory.Exists(sDir))
            {
                DirectoryInfo di = new DirectoryInfo(sDir);
                Console.WriteLine("文件创建时间\t\t文件名\t\t\t文件大小");
                foreach (FileInfo file in di.GetFiles())
                {
                    Console.WriteLine(string.Format("{0}\t{1}\t{2}", file.CreationTime, file.Name, file.Length));
                }
            }
            else
            {
                Console.WriteLine("文件{0}不存在",sDir);
            }

       
        }

        public static void CreateFile(string sFile)
        {
            FileStream fs = File.Create(sFile);
            StreamWriter sw = new StreamWriter(fs);
            Console.WriteLine("输入文本内容:");
            string str = Console.ReadLine();
            sw.WriteLine(str);
            sw.Close();
            fs.Close();
            Console.WriteLine(string.Format("创建文本文件{0}",sFile));
        }

        public static void ReadFile(string sFile)
        {
            string str = "";
            StreamReader sr = new StreamReader(sFile);
            str = sr.ReadToEnd();
            sr.Close();
            Console.WriteLine(string.Format("读取文本文件{0}",str));
        }
        public static void DeleteFile(string sFile)
        {
            File.Delete(sFile);
            Console.WriteLine(string.Format("删除文件{0}", sFile));
        }

    }
}