1 using System;
2 using System.Collections.Generic;
3 using System.Linq;
4 using System.Text;
5 using System.IO;
6
7 namespace iio
8 {
9 class Program
10 {
11 static void Main(string[] args)
12 {
13 // FileInfo f = new FileInfo("ir.txt");
14 //// Console.WriteLine(f.Name);
15
16 // //using (FileStream fs = f.Create())
17 // //{
18 // //}
19 // using (StreamWriter sw = f.AppendText())
20 // {
21 // sw.WriteLine("ii");
22 // }
23 // //FileStream fi = File.Create("");
24
25 //获取一个FileStream对象
26 using (FileStream fs = File.Open("one.dat", FileMode.Create))
27 {
28 //把字符串编码成字节数组
29 string msg = "Hello";
30 byte[] buffer = Encoding.Default.GetBytes(msg);
31
32 //把byte[]写入文件
33 fs.Write(buffer, 0, buffer.Length);
34
35 //重置内部流的位置
36 fs.Position = 0;
37
38 byte[] rebyte = new byte[buffer.Length];
39
40 for (int i = 0; i < buffer.Length; i++)
41 {
42 rebyte[i] = (byte)fs.ReadByte();
43 Console.WriteLine(rebyte[i]);
44
45 }
46 Console.WriteLine(Encoding.Default.GetString(rebyte));
47 }
48
49
50 using (StreamWriter sw = File.CreateText("two.txt"))
51 {
52 sw.WriteLine("1");
53 sw.WriteLine("2");
54 sw.Write("3");
55 sw.Write("3");
56 sw.Write(sw.NewLine);
57 sw.Write(9);
58 }
59
60 using (StreamReader sr = File.OpenText("two.txt"))
61 {
62 string input = null;
63 while ((input = sr.ReadLine()) != null)
64 {
65 Console.WriteLine(input);
66 }
67 }
68
69
70 using (StringWriter sr = new StringWriter())
71 {
72 //sr.GetStringBuilder();
73
74 sr.WriteLine("ioio");
75 StringBuilder bu = sr.GetStringBuilder();
76 bu.AppendLine("99");
77 // Console.WriteLine(bu);
78
79 using (StringReader s = new StringReader(sr.ToString()))
80 {
81 string input;
82 while ((input = s.ReadLine()) != null)
83 {
84 Console.WriteLine(input);
85 }
86 }
87 }
88
89
90 FileInfo info = new FileInfo("binfile.txt");
91
92 using (BinaryWriter bw = new BinaryWriter(info.OpenWrite()))
93 {
94 int num = 89090;
95 bw.Write(num);
96 bw.Write(9.8);
97 }
98
99 //从流中读取二进制数据
100 using (BinaryReader br = new BinaryReader(info.OpenRead()))
101 {
102 Console.WriteLine(br.ReadInt32());
103 }
104
105
106 //确定指向要观察的目录路径
107 FileSystemWatcher watcher = new FileSystemWatcher();
108 watcher.Path = "folder";
109
110 //设置需要"留意"的事情
111 watcher.NotifyFilter = NotifyFilters.LastAccess
112 | NotifyFilters.LastWrite
113 | NotifyFilters.FileName
114 | NotifyFilters.DirectoryName;
115
116
117 //只观察文本文件
118 watcher.Filter = "*.txt";
119 watcher.Changed += new FileSystemEventHandler(OnChanged);
120
121 //开始观察目录
122 watcher.EnableRaisingEvents = true;
123
124
125
126 Console.ReadLine();
127 }
128
129 static void OnChanged(object sender, FileSystemEventArgs e)
130 {
131 Console.WriteLine("Fil:{0} {1}", e.FullPath, e.ChangeType.ToString() == "Changed" ? "修改" : e.ChangeType.ToString());
132 }
133 }
134 }
