C#中基于FileStream的文本文件读写操作

 1 using System;
 2 using System.Collections.Generic;
 3 using System.IO;
 4 using System.Linq;
 5 using System.Text;
 6 using System.Threading.Tasks;
 7 
 8 namespace ConsoleApp
 9 {
10     class Program
11     {
12         static void Main(string[] args)
13         {
14             FileStreamRead();
15 
16             //FileStreamWrite();
17 
18 
19             Console.ReadKey();
20         }
21 
22         private static void FileStreamWrite()
23         {
24             FileStream fs = new FileStream(@".\res\test2.txt", FileMode.Create, FileAccess.Write);
25             byte[] bs = Encoding.UTF8.GetBytes(@"你好");
26             fs.Write(bs, 0, bs.Length);
27             fs.Close();
28             fs.Dispose();
29             Console.WriteLine("<" + Encoding.UTF8.GetString(bs, 0, bs.Length) + ">" + "已被写入文件！");
30         }
31         private static void FileStreamRead()
32         {
33             FileStream fs = new FileStream(@".\res\test.txt", FileMode.Open, FileAccess.Read);
34             byte[] buff = new byte[1024];
35             int len = fs.Read(buff, 0, 1024);
36             while (len > 0)
37             {
38                 string s = Encoding.UTF8.GetString(buff, 0, len);
39                 Console.WriteLine(s);
40                 len = fs.Read(buff, 0, 1024);
41             }
42         }
43     }
44 }