比较两个对象是否相等

using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;

namespace ObjectCompare
{
    public class Person
    {
        public string Name { get; set; }
        public int Age { get; set; }
    }
    static class Program
    {
        static void Main(string[] args)
        {
            CompareObjectTest();
        }
        /// <summary>
        /// 测试方法
        /// </summary>
        public static void CompareObjectTest()
        {
            Person FirstPerson = new Person() { Name = "张三", Age = 20 };
            Person SecondPerson = new Person() { Name = "张三", Age = 21 };
            bool flag = FirstPerson.ToString().Equals(SecondPerson.ToString());
            Console.WriteLine(flag);
            bool actua = FirstPerson.CompareWith(SecondPerson);
            Console.WriteLine(actua);
            Console.Read();
        }

        /// <summary>
        /// 将对象序列化为字符串
        /// </summary>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static string Serialize(this object obj)
        {
            if (null == obj)
                return string.Empty;
            Type type = obj.GetType();
            FieldInfo[] fields = type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.Instance);
            StringBuilder objString = new StringBuilder();
            foreach (FieldInfo field in fields)
            {
                objString.Append(field.Name + ":");
                object value = field.GetValue(obj);     //取得字段的值
                if (null != value)
                {
                    Type filedType = value.GetType();
                    //判断该字段类型是否为类，且不是string类型
                    if (filedType.IsClass && "String" != filedType.Name)
                        objString.Append(Serialize(value));
                    objString.Append(value);
                }
                objString.Append(";");
            }
            return objString.ToString();
        }

        /// <summary>
        /// 比较两个对象是否相等
        /// </summary>
        /// <param name="obj1"></param>
        /// <param name="obj2"></param>
        /// <returns></returns>
        public static bool CompareWith(this object obj1, object obj2)
        {
            if (null == obj1 || null == obj2)
                return false;
            if (obj1.GetType() != obj2.GetType())
                return false;
            return obj1.Serialize().Equals(obj2.Serialize());
        }
    }
}