怎么用LINQ查找两个list数据实体中不同的记录

using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace ConsoleApplication1{    public class wage    {        public int id { set; get; }        public string card { set; get; }        public string name { set; get; }        public decimal price { set; get; }    }    class MyComparer : IEqualityComparer<wage>    {        public bool Equals(wage x, wage y)        {            return x.card == y.card && x.name == y.name && x.price == y.price;        }        public int GetHashCode(wage obj)        {            return obj.card.GetHashCode() ^ obj.name.GetHashCode() ^ obj.price.GetHashCode();        }    }    class Program    {        static void Main(string[] args)        {            List<wage> list1 = new List<wage>()             {                new wage() { id = 1, card = "card1", name = "name1", price = 1 },                new wage() { id = 2, card = "card2", name = "name2", price = 2 },                new wage() { id = 3, card = "card3", name = "name3", price = 3 },                new wage() { id = 5, card = "card5", name = "name5", price = 5 },                new wage() { id = 6, card = "card8", name = "name8", price = 8 }            };            List<wage> list2 = new List<wage>()             {                new wage() { id = 1, card = "card1", name = "name1", price = 2 },                new wage() { id = 2, card = "card2", name = "name2", price = 2 },                new wage() { id = 3, card = "card3", name = "name4", price = 3 },                new wage() { id = 4, card = "card4", name = "name4", price = 4 },                new wage() { id = 5, card = "card8", name = "name8", price = 8 }            };            var result = list1.Union(list2, new MyComparer()).Except(list1.Intersect(list2, new MyComparer()), new MyComparer());            foreach (var item in result)            {                Console.WriteLine("id = {0}, card = {1}, name = {2}, price = {3}", item.id, item.card, item.name, item.price);            }        }    }}