C# 给文件夹增加权限

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.AccessControl;
using System.Text;

namespace ERP.GCL
{
    public class GeneralSecurity
    {
        public static void AddDirectorySecurity(string DirectoryName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            DirectoryInfo dInfo = new DirectoryInfo(DirectoryName);
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            dSecurity.AddAccessRule(new FileSystemAccessRule(Account, Rights, InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit, PropagationFlags.None, ControlType));
            dInfo.SetAccessControl(dSecurity);
        }
        public static void AddDirectorySecurity2(string DirectoryName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            DirectoryInfo dInfo = new DirectoryInfo(DirectoryName);
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            dSecurity.AddAccessRule(new FileSystemAccessRule(Account, Rights, ControlType));
            dInfo.SetAccessControl(dSecurity);

        }
        public static void RemoveDirectorySecurity(string DirectoryName, string Account, FileSystemRights Rights, AccessControlType ControlType)
        {
            // Create a new DirectoryInfo object.
            DirectoryInfo dInfo = new DirectoryInfo(DirectoryName);
            // Get a DirectorySecurity object that represents the
            // current security settings.
            DirectorySecurity dSecurity = dInfo.GetAccessControl();
            // Add the FileSystemAccessRule to the security settings.
            dSecurity.RemoveAccessRule(new FileSystemAccessRule(Account, Rights, ControlType));
            // Set the new access settings.
            dInfo.SetAccessControl(dSecurity);
        }

        // Adds an ACL entry on the specified file for the specified account.
        public static void AddFileSecurity(string fileName, string account, FileSystemRights rights, AccessControlType controlType)
        {
            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = File.GetAccessControl(fileName);
            // Add the FileSystemAccessRule to the security settings.
            fSecurity.AddAccessRule(new FileSystemAccessRule(account, rights, controlType));
            // Set the new access settings.
            File.SetAccessControl(fileName, fSecurity);

        }

        // Removes an ACL entry on the specified file for the specified account.
        public static void RemoveFileSecurity(string fileName, string account, FileSystemRights rights, AccessControlType controlType)
        {
            // Get a FileSecurity object that represents the
            // current security settings.
            FileSecurity fSecurity = File.GetAccessControl(fileName);
            // Remove the FileSystemAccessRule from the security settings.
            fSecurity.RemoveAccessRule(new FileSystemAccessRule(account, rights, controlType));
            // Set the new access settings.
            File.SetAccessControl(fileName, fSecurity);

        }
    }
}