关于几个C#语言操作Windows系统的问题，请各位进来看看！！！

Question

1. 取得系统帐号列表
2. 取得某个文件夹的所有帐号的权限列表，就是一个文件夹有N个帐号可以访问，取每个帐号的权限列表本人对系统操作不是很熟悉，希望得到各位的指点

Answer 1

关于第二点:using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Security.AccessControl;
using System.Security.Principal;namespace DirectoryInfoTest
{
    class Program
    {
        static void Main(string[] args)
        {            #region 变量定义
            string strFolderPath = "";
            DirectoryInfo dirInfo = null;
            DirectorySecurity dirSec = null;
            int i = 0;
            #endregion            try
            {                dirInfo = new DirectoryInfo(@"D:\CodeSmith");
                dirSec = dirInfo.GetAccessControl();                // 获取ACL里的ACEs
                i = 0;
                foreach (FileSystemAccessRule rule in dirSec.GetAccessRules(true, true, typeof(NTAccount)))
                {
                    Console.WriteLine("[{0}] - Rule {1} {2} access to {3}",
                    i++,
                    rule.AccessControlType == AccessControlType.Allow ? "grants" : "denies",
                    rule.FileSystemRights,
                    rule.IdentityReference.ToString());
                }
            }
            catch (Exception ex)
            {
                Console.Write("EXCEPTION: ");
                Console.WriteLine(ex.Message);
            }
            Console.WriteLine("\n<>");
            Console.Read();
        }
    }
}