重写类的Equals

    public enum Week
    {
        Monday = 1,
        Tuesday = 2,
        Wednesday = 3,
        Thursday = 4,
        Friday = 5,
        Saturday = 6,
        Sunday = 0
    }

    public class TestEquals
    {
        public Week Day { get; set; }

        public string Name { get; set; }

        public int Age { get; set; }

        public TestEquals(Week day, string name, int age)
        {
            this.Day = day;
            this.Name = name;
            this.Age = age;
        }

        public override bool Equals(object obj)
        {
            if (obj == null) 
                return false;
            if (obj.GetType() != this.GetType())
                return false;

            TestEquals p = obj as TestEquals;
            return this.GetHashCode() == p.GetHashCode();
        }

        public override int GetHashCode()
        {
            return Day.GetHashCode() ^ Name.GetHashCode() ^ Age.GetHashCode();
        }
    }

        static void Main(string[] args)
        {
            TestEqual();
        }

        private static void TestEqual()
        {
            TestEquals t1 = new TestEquals(Week.Monday, "杨彬", 29);
            TestEquals t2 = new TestEquals(Week.Monday, "杨彬", 29);

            Console.WriteLine(t1.Equals(t2));
            Console.ReadLine();
        }