/// <summary>        /// 设置文件夹的ACL        /// </summary>        /// <param name="folderPath">文件夹路径</param>        /// <param name="userName">用户</param>        /// <param name="rights">权限</param>        /// <param name="allowOrDeny">拒绝访问</param>        /// <returns></returns>        public static bool SetFolderACL(            string folderPath,             string userName,             FileSystemRights rights,             AccessControlType allowOrDeny)        {            //设定文件ACL继承            InheritanceFlags inherits = InheritanceFlags.ContainerInherit | InheritanceFlags.ObjectInherit;            return SetFolderACL(folderPath, userName, rights, allowOrDeny, inherits, PropagationFlags.None, AccessControlModification.Add);        }        /// <summary>        /// 设置文件夹的ACL        /// </summary>        /// <param name="folderPath">文件夹路径</param>        /// <param name="userName">用户</param>        /// <param name="rights">权限</param>        /// <param name="allowOrDeny">拒绝访问</param>        /// <param name="inherits">ACL继承</param>        /// <param name="propagateToChildren">应用于子文件夹及子文件</param>        /// <param name="addResetOrRemove">修改类型</param>        /// <returns></returns>        public static bool SetFolderACL(            string folderPath,             string userName,             FileSystemRights rights,             AccessControlType allowOrDeny,             InheritanceFlags inherits,             PropagationFlags propagateToChildren,             AccessControlModification addResetOrRemove)        {            bool result;            //获取目录信息            var folder = new DirectoryInfo(folderPath);            //获取当前文件夹ACL            var dSecurity = folder.GetAccessControl(AccessControlSections.All);            //设置新的ACL规则            var accRule = new FileSystemAccessRule(userName, rights, inherits, propagateToChildren, allowOrDeny);             //修改文件夹ACL            dSecurity.ModifyAccessRule(addResetOrRemove, accRule, out result);            //应用新的ACL规则到文件夹            folder.SetAccessControl(dSecurity);            //返回结果            return result;        }

        var folderPath = System.AppDomain.CurrentDomain.BaseDirectory;        var userName = "Users";        SetFolderACL(folderPath, userName, FileSystemRights.FullControl, AccessControlType.Allow);