C#-文件目录-文件目录操作

找子目录可以这样做：

using   System;using   System.IO;class   Test  {        public   static   void   Main()          {                try                  {                        //   Only   get   subdirectories   that   begin   with   the   letter   "p. "                        string[]   dirs   =   Directory.GetDirectories(@ "c:\ ",   "p* ");                        Console.WriteLine( "The   number   of   directories   starting   with   p   is   {0}. ",   dirs.Length);                        foreach   (string   dir   in   dirs)                          {                                Console.WriteLine(dir);                        }                }                  catch   (Exception   e)                  {                        Console.WriteLine( "The   process   failed:   {0} ",   e.ToString());                }        }} 

取本地目录内的文件名 

private   void   showDirFiles(string   strPath){try{if   (!Directory.Exists(strPath)){//目录不存在，创建目录Directory.CreateDirectory(strPath);}DirectoryInfo   mydir=new   DirectoryInfo(strPath);FileInfo   []   files=mydir.GetFiles();this.listBoxC.Items.Clear();//清楚listbox中现有项目for(int   i=0;i <files.Length;i++){this.listBoxC.Items.Add(files[i].ToString());}}catch(Exception   ex){MessageBox.Show(ex.Message);}}

递归实现查找目录下的所有子目录和文件 

public   void   FindFile(string   dir)                           //参数为指定的目录{    //在指定目录及子目录下查找文件,在listBox1中列出子目录及文件DirectoryInfo   Dir=new   DirectoryInfo(dir);try{      foreach(DirectoryInfo   d   in   Dir.GetDirectories())     //查找子目录  {FindFile(Dir+d.ToString()+ "\\ ");listBox1.Items.Add(Dir+d.ToString()+ "\\ ");       //listBox1中填加目录名}      foreach(FileInfo   f   in   Dir.GetFiles( "*.* "))             //查找文件{listBox1.Items.Add(Dir+f.ToString());     //listBox1中填加文件名}}catch(Exception   e){MessageBox.Show(e.Message);}}调用private   void   button1_Click(object   sender,   System.EventArgs   e){string   currentdir= "F:\\myprogram\\C#\\FileSearch ";     //搜索的目录if(currentdir[currentdir.Length-1]!= '\\ ')   //非根目录currentdir+= "\\ ";  FindFile(currentdir);     //调用查找文件函数}加上   using   System.IO; 

引用：http://topic.csdn.net/t/20050630/18/4115459.html