C#對檔案的操作

標籤：

一、實驗目的：

1. 熟悉.NET架構下路徑及檔案資訊的擷取方法。

2. 熟悉文字檔、二進位流式檔案的讀取和儲存方法。

二、實驗內容及要求：

1、實現選擇一個路徑，並顯示該路徑下的所有目錄及檔案。

2、編程實現顯示選中檔案的屬性資訊（大小、最後訪問時間、最後修改時間等資訊）

 

3、建立應用程式，實現在表單關閉後，下次開啟時能自動儲存表單的大小和位置（用文字檔儲存）。

4、繼續完善資料庫操作類，實現：將資料庫連接資訊（伺服器IP地址、資料庫名）用文字檔配置，在資料庫操作類中提供方法從設定檔中讀入伺服器IP地址、資料庫名，實現連接字串的動態產生。

 

5、編程實現，將教師資訊：教師號（Int16），教師名（string），性別（bool），基本工資（double），寫入二進位檔案儲存。同時實現從二進位檔案中讀出寫入內容。

 

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.IO;namespace CJ11103060203{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void button1_Click(object sender, EventArgs e)        {            listBox1.Items.Clear();            string curDir = "";            string subDir = "";            string curFile = "";            try            {                FolderBrowserDialog fbd = new FolderBrowserDialog();                if (fbd.ShowDialog() == DialogResult.OK)                {                    curDir = fbd.SelectedPath;                    string[] surDirs = Directory.GetDirectories(curDir);                    string[] Files = Directory.GetFiles(curDir);                    for (int i = 0; i < subDir.Length; i++)                    {                        subDir = surDirs[i];                        subDir = subDir.Substring(subDir.LastIndexOf("\\") + 1);                        listBox1.Items.Add(subDir);                    }                    for (int k = 0; k < Files.Length; k++)                    {                        curFile = Files[k];                        curFile = curFile.Substring(curFile.LastIndexOf("\\") + 1);                        listBox2.Items.Add(curFile);                    }                }            }            finally            {      }        }        private void button2_Click(object sender, EventArgs e)        {            OpenFileDialog ofd = new OpenFileDialog();            if (ofd.ShowDialog() == DialogResult.OK)            {                FileInfo file = new FileInfo(ofd.FileName);                MessageBox.Show("檔案名稱： " + file.Name + "\n" +                    "大小： " + file.Length.ToString() + "\n" +                    "最後的訪問時間： " + file.LastAccessTime.ToString() + "\n"                    + "最後的修改時間： " + file.LastWriteTime.ToString() + "\n" + "所在目錄： " + file.DirectoryName);            }        }    }}

後台對檔案的操作

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.IO;namespace _2CJ11103060203{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        private void Form1_FormClosed(object sender, FormClosedEventArgs e)        {            int x, y, w, h;            x = this.Left;            y = this.Top;            w = this.Width;            h = this.Height;            StreamWriter sw = File.CreateText(Application.StartupPath + "\\config.txt");            sw.WriteLine("x=" + x.ToString());            sw.WriteLine("y=" + y.ToString());            sw.WriteLine("w=" + w.ToString());            sw.WriteLine("h=" + h.ToString());            sw.Flush();            sw.Close();            sw.Dispose();        }        private void Form1_Load(object sender, EventArgs e)        {            int x, y, w, h;            string ss = "";            StreamReader sr = File.OpenText(Application.StartupPath + "\\config.txt");            ss = sr.ReadLine();            x = Convert.ToInt16(ss.Substring(2));            ss = sr.ReadLine();            y = Convert.ToInt16(ss.Substring(2));            ss = sr.ReadLine();            w = Convert.ToInt16(ss.Substring(2));            ss = sr.ReadLine();            h = Convert.ToInt16(ss.Substring(2));            ss = sr.ReadLine();            this.Left = x;            this.Top = y;            this.Width = w;            this.Height = h;            sr.Close();            sr.Dispose();        }    }}

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.IO;namespace _3CJ11103060203{    public partial class Form1 : Form    {        public Form1()        {            InitializeComponent();        }        struct teacher        {            public Int16 jsh;            public string jsm;            public bool xb;            public double gz;        }        private void button1_Click(object sender, EventArgs e)        {            teacher t;            t.jsh = Convert.ToInt16(textBox1.Text);            t.jsm = textBox2.Text;            if (radioButton1.Checked)                t.xb = true;            else                t.xb = false;            t.gz = Convert.ToDouble(textBox3.Text);            SaveFileDialog sf = new SaveFileDialog();            if (sf.ShowDialog() == DialogResult.OK)            {                FileStream fs = new FileStream(sf.FileName, FileMode.Create);                BinaryWriter bw = new BinaryWriter(fs);                bw.Write((Int16)t.jsh);                bw.Write((string)t.jsm);                bw.Write((bool)t.xb);                bw.Write((double)t.gz);                bw.Flush();                fs.Close();            }        }        private void button2_Click(object sender, EventArgs e)        {            teacher t;            OpenFileDialog od = new OpenFileDialog();            if (od.ShowDialog() == DialogResult.OK)            {                FileStream fs = new FileStream(od.FileName, FileMode.Open);                BinaryReader br = new BinaryReader(fs);                t.jsh = br.ReadInt16();                t.jsm = br.ReadString();                t.xb = br.ReadBoolean();                t.gz = br.ReadDouble();                textBox1.Text = t.jsh.ToString();                textBox2.Text = t.jsm;                if (t.xb)                    radioButton1.Checked = true;                else                    radioButton2.Checked = true;                textBox3.Text = t.gz.ToString();                fs.Close();            }        }    }}

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C#對檔案的操作