3-4 文件读写例子(2)

发布时间：2019-07-05 09:51:46编辑：auto阅读（1612）

//=========================第一部分：主界面功能设计============================= using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO;   namespace FileOptionApplication {     public partial class Form6 : Form     {         public Form6()         {             InitializeComponent();         }         /// <summary>         /// 读写文件操作         /// </summary>         private void button3_Click(object sender, EventArgs e)         {             int p = comboBox1.SelectedIndex;             if (p == -1)             {                 MessageBox.Show("请您选择文件写入方式", "警告信息", MessageBoxButtons.OK, MessageBoxIcon.Information);             }             else             {                 string filecontent = richTextBox1.Text.Trim();                 MyFileOption myoption = new MyFileOption();                 string filepath = @"c:\1.txt";                 bool i = myoption.WriteTextFile(filepath, filecontent, Convert.ToInt16(comboBox1.SelectedIndex));                 if (i == true)                 {                     MessageBox.Show("保存成功", "保存信息", MessageBoxButtons.OK, MessageBoxIcon.Information);                 }                 else                 {                     MessageBox.Show("写入文件时出错", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning);                 }             }         }         /// <summary>         /// 文件磁盘操作         /// </summary>         private void button4_Click(object sender, EventArgs e)         {             Int16 p = Convert.ToInt16(comboBox2.SelectedIndex);             if (p == -1)             {                 MessageBox.Show("请您选择磁盘文件操作方式", "警告信息", MessageBoxButtons.OK, MessageBoxIcon.Information);             }             else             {                 string sourcepath = "c:\\1.txt";                 string targetpath = "c:\\2.txt";                 MyFileOption myoption = new MyFileOption();                 bool i = myoption.DiskFileOption(sourcepath, targetpath, p);                 if (i == true)                 {                     MessageBox.Show("磁盘文件操作成功", "保存信息", MessageBoxButtons.OK, MessageBoxIcon.Information);                 }                 else                 {                     MessageBox.Show("磁盘文件操作时出错", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning);                 }             }         }         private void button1_Click(object sender, EventArgs e)         {             richTextBox1.Text = null;             richTextBox1.Focus();         }         /// <summary>         /// 读出文本文件内容         /// </summary>         private void button2_Click(object sender, EventArgs e)         {             MyFileOption myoption = new MyFileOption();             string filepath = @"c:\1.txt";             Int16 i = 0;             string filecontent = "";             myoption.ReadTextFile(filepath, out i, out filecontent);             if (i == 0)             {                 MessageBox.Show(filecontent, "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Information);                 richTextBox1.Text = filecontent;             }             else if (i == 1)             {                 richTextBox1.Text = filecontent;                 MessageBox.Show("读取文件成功", "成功", MessageBoxButtons.OK, MessageBoxIcon.Warning);             }             else if (i == 2)             {                 richTextBox1.Text = filecontent;                 MessageBox.Show(filecontent, "错误信息", MessageBoxButtons.OK, MessageBoxIcon.Warning);             }         }         /// <summary>         /// 文件基本属性设置         /// </summary>         private void button5_Click(object sender, EventArgs e)         {             string filepath = @"c:\1.txt";             if (checkBox1.Checked && checkBox2.Checked)             {                 File.SetAttributes(filepath, FileAttributes.ReadOnly | FileAttributes.Hidden);                 MessageBox.Show("文件已经改为只读且隐藏", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);             }             else             {                 if (!checkBox1.Checked && !checkBox2.Checked)                 {                     File.SetAttributes(filepath, FileAttributes.Archive);                     MessageBox.Show("文件已经改为正常", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);                 }                 else                 {                     if (checkBox2.Checked)                     {                         File.SetAttributes(filepath, FileAttributes.ReadOnly);                         MessageBox.Show("文件已经改为只读", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);                     }                     if (checkBox1.Checked)                     {                         File.SetAttributes(filepath, FileAttributes.Hidden);                         MessageBox.Show("文件已经改为隐藏", "提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);                     }                 }             }         }         /// <summary>         /// 文件夹操作         /// </summary>         private void button6_Click(object sender, EventArgs e)         {             Int16 p = Convert.ToInt16(comboBox3.SelectedIndex);             if (p == -1)             {                 MessageBox.Show("请您选择文件夹操作方式", "警告信息", MessageBoxButtons.OK, MessageBoxIcon.Information);             }             else             {                 string sourcepath = @"c:\1";                 string targetpath = @"c:\2";                 MyFileOption myoption = new MyFileOption();                 string[] filesname = null;                 bool i = myoption.DirectoryOption(sourcepath, targetpath, p, out filesname);                 if (i == true)                 {                     MessageBox.Show("磁盘文件夹操作成功", "保存信息", MessageBoxButtons.OK, MessageBoxIcon.Information);                     if (filesname != null)                     {                         foreach (string somestring in filesname)                         {                             richTextBox1.Text += somestring + "\r\n";                         }                     }                 }                 else                 {                     MessageBox.Show("磁盘文件夹操作时出错", "错误", MessageBoxButtons.OK, MessageBoxIcon.Warning);                 }             }         }     } }

u实验步骤（3）：

向项目中添加名为FileOption.cs的类文件，并准备填写关于文件操作的各种方法，如图3－8所示：



图3-8  建立FileOption.cs图

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