Reflection Get Const

using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;

namespace ReflectionGetConst
{
    class Program
    {
        static void Main(string[] args)
        {
            var list = GetConstants< ClassTarget>();
            foreach (var a in list)
            {
                Console.WriteLine("{0} {1} {2} {3}", a.Attributes.ToString(), a.FieldType.FullName, a.Name, a.GetValue(null).ToString());
            }
            Console.ReadLine();
        }
        public static List<FieldInfo> GetConstants<T>()
        {
            var type = typeof (T);
            FieldInfo[] fieldInfos = type.GetFields(BindingFlags.Public| BindingFlags.NonPublic| BindingFlags.Static | BindingFlags.FlattenHierarchy);

            return fieldInfos.Where(fi => fi.IsLiteral).ToList();
        }
    }

    public class ClassTarget
    {
        public const int a = 0;
        public const int b = -10;
        public const int c = 20;
        public const int d = 3;
        private const int e = 10;
        private readonly int f = 4;
        private int g = 12;
    }
}