using System.IO;/// 
/// 获取指定目录下的所有文件和文件夹大小/// 
/// 目录路径/// 
      
       string，返回所有文件夹名字
      protected long GetDirectorySize(string path){    long dirSize = 0;    DirectoryInfo dir = new DirectoryInfo(path);    foreach (FileInfo file in dir.GetFiles())        dirSize += file.Length;    foreach (DirectoryInfo subdir in dir.GetDirectories())        dirSize += GetDirectorySize(subdir.FullName);    return dirSize;}

 

using System.IO;/// 
/// 获取指定目录下的所有文件夹名/// 
/// 目录路径/// 
     
      string，返回所有文件夹名字
     public string GetAllFolder(string path){	string folder_Names = "";	DirectoryInfo dir = new DirectoryInfo(path);	foreach (DirectoryInfo subdir in dir.GetDirectories())		folder_Names += subdir.FullName + ",";	return folder_Names;}