转自：http://www.cnblogs.com/lixiaolun/archive/2012/12/24/2831375.html
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 FileReadWriteDemo { public partial class Form1 : Form { public Form1() { InitializeComponent(); }
//遍历文件 - 浏览按钮 private void buttonBrowse_Click(object sender, EventArgs e) { OpenFileDialog ofd = new OpenFileDialog(); ofd.Filter = "(*.*)|*.*"; //过滤文件类型 ofd.RestoreDirectory = true; //记忆上次浏览路径 if(ofd.ShowDialog() == DialogResult.OK) { DirectoryInfo dir = Directory.GetParent(ofd.FileName); //获取文件所在的父目录 textBox1.Text = dir.ToString()+"\\"; } } //遍历文件 - 遍历按钮 private void buttonTransform_Click(object sender, EventArgs e) { listBox1.Items.Clear(); TransformFiles(textBox1.Text.Trim()); }
public void TransformFiles(string path) { try { DirectoryInfo dir = new DirectoryInfo(path); DirectoryInfo[] dirs = dir.GetDirectories(); //获取子目录 FileInfo[] files = dir.GetFiles("*.*"); //获取文件名 foreach (DirectoryInfo d in dirs) { TransformFiles(dir+d.ToString()+"\\"); //递归调用 } foreach(FileInfo f in files) { listBox1.Items.Add(dir+f.ToString()); } } catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); } }
//打开保存 - 打开按钮 private void buttonOpen_Click(object sender, EventArgs e) { textBox3.Text = ""; OpenFileDialog ofd = new OpenFileDialog(); ofd.Filter = "(*.txt)|*.txt|(*.*)|*.*"; ofd.RestoreDirectory = true; if(ofd.ShowDialog() == DialogResult.OK) { textBox2.Text = ofd.FileName; FileStream fs = new FileStream(ofd.FileName, FileMode.Open, FileAccess.Read); StreamReader sr = new StreamReader(fs); try { ofd.OpenFile(); //打开文件 string line = sr.ReadLine(); //读取文本行 while (line != null) { textBox3.Text += line + "\n"; //换行后继续读取直至line==null line = sr.ReadLine(); } } catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); } finally { sr.Close(); fs.Close(); } }
}
//打开保存 - 保存按钮 private void buttonSave_Click(object sender, EventArgs e) { SaveFileDialog sfd = new SaveFileDialog(); sfd.Filter = "(*.txt)|*.txt|(*.*)|*.*"; sfd.AddExtension = true; sfd.RestoreDirectory = true; if(sfd.ShowDialog() == DialogResult.OK) { textBox2.Text = sfd.FileName; FileStream fs = new FileStream(sfd.FileName,FileMode.Create); StreamWriter sw = new StreamWriter(fs); try { sw.Write(textBox3.Text); sw.Flush(); } catch(Exception ex) { MessageBox.Show(ex.Message.ToString()); } finally { sw.Close(); fs.Close(); } } }
//读写文本 - 写入数据按钮 private void buttonWrite_Click(object sender, EventArgs e) { if (!(Directory.Exists(@"D:\temp"))) { Directory.CreateDirectory(@"D:\temp"); } string filePath = @"D:\temp\qq.doc"; if(File.Exists(filePath)) { labelResult.ForeColor = Color.Red; labelResult.Text = "当前文件已经存在！"; return; }
FileStream fs = new FileStream(filePath,FileMode.Create); StreamWriter sw = new StreamWriter(fs); try { sw.Write(textBox4.Text); sw.Flush(); labelResult.ForeColor = Color.Green; labelResult.Text = "写入数据完成！"; } catch (Exception ex) { MessageBox.Show(ex.Message.ToString()); } finally { sw.Close(); fs.Close(); } }
//读写文本 - 读取数据按钮 private void buttonRead_Click(object sender, EventArgs e) { textBox5.Text = ""; string filePath = @"D:\temp\qq.doc"; if(!(File.Exists(filePath))) { labelResult.ForeColor = Color.Red; labelResult.Text = filePath+"文件不存在！"; return; } FileStream fs = new FileStream (filePath,FileMode.Open,FileAccess.Read); StreamReader sr = new StreamReader(fs); try { string line = sr.ReadLine(); while(line != null) { textBox5.Text += line + "\n"; line = sr.ReadLine(); } labelResult.ForeColor = Color.Green; labelResult.Text = "读取数据成功！"; } catch(Exception ex) { MessageBox.Show(ex.Message.ToString()); } finally { sr.Close(); fs.Close(); } }
//读写二进制文件 - 写入数据按钮 private void buttonWrite2_Click(object sender, EventArgs e) { string filePath = @"D:\temp\test.data"; if (!(Directory.Exists(@"D:\temp"))) { Directory.CreateDirectory(@"D:\temp"); } if(File.Exists(filePath)) { labelResult2.ForeColor = Color.Red; labelResult2.Text = "文件已经存在！"; return; } FileStream fs = new FileStream(filePath,FileMode.Create); BinaryWriter bw = new BinaryWriter(fs);
for (int i = 0; i < 200; i++) { bw.Write((int)i); } bw.Flush(); labelResult2.ForeColor = Color.Green; labelResult2.Text = "写入数据成功！"; bw.Close(); fs.Close(); }
//读写二进制文件 - 读取数据按钮 private void buttonRead2_Click(object sender, EventArgs e) { textBox6.Text = ""; string filePath = @"D:\temp\test.data"; if(!(File.Exists(filePath))) { labelResult2.ForeColor = Color.Red; labelResult2.Text = filePath+"文件不存在！"; return; } FileStream fs = new FileStream(filePath,FileMode.Open,FileAccess.Read); BinaryReader br = new BinaryReader(fs); for (int i = 0; i < 200; i++) { Int32 intTmp = br.ReadInt32(); textBox6.Text += "->" + intTmp.ToString(); } labelResult2.ForeColor = Color.Green; labelResult2.Text = "读取数据成功！"; br.Close(); fs.Close(); }
} }
