c#-安全-角色

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;
using System.Security;
using System.Security.Principal;//安全.主事人
using System.Security.Permissions;//安全.许可

// c#-安全-角色
namespace ConsoleApp26
{
    class JiaoSe
    {
        static void Main(string[] args)
        {
            AppDomain.CurrentDomain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);
            try
            {
                ShowMessage();
            }
            catch (SecurityException exception)
            {
                Console.WriteLine("Security exception caught {0}", exception.Message);
                Console.WriteLine("the current principal must be in the local Users group");
            }
            Console.ReadLine();
        }
        [PrincipalPermission(SecurityAction.Demand, Role = "BUILTIN\\Users")]
        static void ShowMessage()
        {
            Console.WriteLine("the current principal is logged in locally");
            Console.WriteLine("(member of the local Users group)");
        }
    }
}