C#二进制对象copy

代码示例：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading.Tasks;

namespace TestObjectCopy
{
    class Program
    {
        static void Main(string[] args)
        {
            Dog d1 = new Dog();
            d1.Age = 2;
            d1.BirthDay = DateTime.Parse("2018-05-01");
            d1.Name = "XiaoHei";
            d1.ListHobby = new List<Hobby>();
            d1.ListHobby.Add(new Hobby() { HobbyName = "吃" });
            d1.ListHobby.Add(new Hobby() { HobbyName = "跑" });

            Dog d2 = d1.ShallowClone();
            //d2.Age = 3;
            d2.BirthDay = DateTime.Parse("2020-06-01");
            d2.Name = "XiaoHuang";

            Console.WriteLine(d1.Name+"===="+d1.Age+"===="+d1.BirthDay);
            Console.WriteLine("");
            Console.WriteLine(d2.Name + "====" + d2.Age + "====" + d2.BirthDay);

            d2.ListHobby[0].HobbyName = "xxx";


            Dog d3 = BinaryDeepCopy<Dog>(d1);
            d3.ListHobby.Remove(d3.ListHobby[0]);
            d3.ListHobby[0].HobbyName = "喝";
            d3.ListHobby.Add(new Hobby() { HobbyName = "跳" });
            d3.ListHobby.Add(new Hobby() { HobbyName = "睡" });

            StringBuilder sb1 = new StringBuilder();
            foreach (var item in d1.ListHobby)
            {
                sb1.Append( item.HobbyName+"|");
            }
            Console.WriteLine(sb1.ToString());

            StringBuilder sb2 = new StringBuilder();
            foreach (var item in d2.ListHobby)
            {
                sb2.Append(item.HobbyName + "|");
            }
            Console.WriteLine(sb2.ToString());


            StringBuilder sb3 = new StringBuilder();
            foreach (var item in d3.ListHobby)
            {
                sb3.Append(item.HobbyName + "|");
            }
            Console.WriteLine(sb3.ToString());



            Console.ReadKey();
        }


        /// <summary>
        /// 二进制序列化的方式进行深拷贝
        /// 确保需要拷贝的类里的所有成员已经标记为 [Serializable] 如果没有加该特性特报错
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        /// <returns></returns>
        public static T BinaryDeepCopy<T>(T t)
        {
            //创建二进制序列化对象
            BinaryFormatter bf = new BinaryFormatter();
            using (MemoryStream ms = new MemoryStream())//创建内存流
            {
                //将对象序列化到内存中
                bf.Serialize(ms, t);
                ms.Position = 0;//将内存流的位置设为0
                return (T)bf.Deserialize(ms);//继续反序列化
            }
        }
    }


    [Serializable]
    public class Dog
    {
        public string Name { get; set; }

        public int Age { get; set; }

        public DateTime BirthDay { get; set; }

        public List<Hobby> ListHobby { get; set; }


        public Dog ShallowClone()
        {
            return this.MemberwiseClone() as Dog;
        }


    }

    [Serializable]
    public class Hobby
    {
        public string HobbyName { get; set; }
    }
}

 

深度copy