IO FileStream的使用

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;namespace IO{    class Program    {        static void Main(string[] args)        {            FileStream f=new FileStream("/Net/IO/IO/Log/test.txt",FileMode.OpenOrCreate,FileAccess.ReadWrite);            for (int i = 0; i < f.Length; i++)            {                byte[] b=new byte[1024];                UTF8Encoding temp=new UTF8Encoding(true);                while (f.Read(b,0,b.Length)>0)                {                    Console.WriteLine(temp.GetString(b));                }            }            Console.ReadKey();        }    }}