asp.net 得到一个文件夹下的所有文件夹及子文件夹名，得到所有文件名，文件大小，文件夹大小

    
    using System.IO;
/// <summary>
/// 获取指定目录下的所有文件夹名
/// </summary>
/// <param name="path">目录路径</param>
/// <returns>string，返回所有文件夹名字</returns>
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;
}
    
    
    using System.IO;
/// <summary>
/// 获取指定目录下的所有文件和文件夹大小
/// </summary>
/// <param name="path">目录路径</param>
/// <returns>string，返回所有文件夹名字</returns>
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;
}