xUnitStudy/xUnitStudy.Model/xUnitStudy/Person.cs

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

namespace xUnitStudy.Model
{
    public class Person:IPerson,IEqualityComparer<Person>,IComparer<Person>
    {
        public int Id { get; set; }

        public string FirstName { get; set; }

        public string LastName { get; set; }

        public string GetFullName()
        {
            return FirstName + "_" + LastName;
        }
        public bool Equals(Person x, Person y)
        {
            return x.Id == y.Id;
        }

        public int GetHashCode(Person obj)
        {
           return  obj.Id;
        }

        /// <summary>
        /// IComparer接口实现
        /// </summary>
        /// <param name="x">比较对象1</param>
        /// <param name="y">比较对象2</param>
        /// <returns>x小于y则返回负整数；x大于y则返回正整数；x等于y则返回0</returns>
        public int Compare(Person x, Person y)
        {
            if (x.Id < y.Id)
            {
                return -1;
            }
            else if (x.Id == y.Id)
            {
                return 0;
            }
            else
            {
                return 1;
            }
        }
    }
}