static public void AddDirectorySecurity(string FileName, string Account, string UserRights) { FileSystemRights Rights = new FileSystemRights(); if (UserRights.IndexOf("R") >= 0) { Rights = Rights | FileSystemRights.Read; } if (UserRights.IndexOf("C") >= 0) { Rights = Rights | FileSystemRights.ChangePermissions; } if (UserRights.IndexOf("F") >= 0) { Rights = Rights | FileSystemRights.FullControl; } if (UserRights.IndexOf("W") >= 0) { Rights = Rights | FileSystemRights.Write; } bool ok; DirectoryInfo dInfo = new DirectoryInfo(FileName); DirectorySecurity dSecurity = dInfo.GetAccessControl(); InheritanceFlags iFlags = new InheritanceFlags(); iFlags = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit; FileSystemAccessRule AccessRule2 = new FileSystemAccessRule(Account, Rights, iFlags, PropagationFlags.None, AccessControlType.Allow); dSecurity.ModifyAccessRule(AccessControlModification.Add, AccessRule2, out ok); dInfo.SetAccessControl(dSecurity); //列出目标目录所具有的权限 DirectorySecurity sec = Directory.GetAccessControl(FileName, AccessControlSections.All); foreach (FileSystemAccessRule rule in sec.GetAccessRules(true, true, typeof(System.Security.Principal.NTAccount))) { Console.WriteLine("----------------------------------"); Console.WriteLine(rule.IdentityReference.Value); if ((rule.FileSystemRights & FileSystemRights.Read) != 0) Console.WriteLine(rule.FileSystemRights.ToString()); } Console.Read(); }