1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Linq; 7 using System.Text; 8 using System.Windows.Forms; 9 using System.IO;10 11 namespace WindowsFormsApplication212 {13     public partial class Form1 : Form14     {15         public Form1()16         {17             InitializeComponent();18         }19 20         public string foldPath = "";21 22        23         public static void iterDir(FileSystemInfo[] fsInfo)24         {25             foreach(FileSystemInfo fsi in fsInfo)26             {27                 if (fsi.Extension.Length <= 0)28                 {29                     FileSystemInfo[] ff = (new DirectoryInfo(fsi.FullName)).GetFileSystemInfos();30                     iterDir(ff);31                 }32                 else33                 {34                     FileStream fs = new FileStream("E:\\bb.txt",FileMode.Append);35                     StreamWriter sw = new StreamWriter(fs);36                     sw.WriteLine(fsi.FullName);37                     sw.Close();38                 }39 40             }41         }42 43       44 45         private void btnChoice_Click(object sender, EventArgs e)46         {47             FolderBrowserDialog fbd = new FolderBrowserDialog();48             fbd.Description = "请选择文件夹";49 50             if (fbd.ShowDialog() == DialogResult.OK)51             {52                 foldPath = fbd.SelectedPath;53                 MessageBox.Show("您选择的文件夹是："+ foldPath, "选择文件夹提示");54             }55 56         }57 58         private void btnIterator_Click(object sender, EventArgs e)59         {60             DialogResult result;61 62             DirectoryInfo dirInfo = new DirectoryInfo(foldPath);63             FileSystemInfo[] fsies = dirInfo.GetFileSystemInfos();64 65             iterDir(fsies);66             67             result = MessageBox.Show("文件夹"+ foldPath+"已经遍历完毕，结果保存在E:\\bb.txt，点击确定打开"," 结果提示",MessageBoxButtons.OKCancel);68 69             if (result == DialogResult.OK)70             {71                 System.Diagnostics.Process.Start(@"E:\bb.txt");72             }73 74 75         }76     }77 }