合適使用深度拷貝的一個場景包含簡單深度拷貝的示例代碼

今天有一個場景需要用到對象的複製，寫個深度拷貝的代碼，做個記錄
在同一個業務中包含多處回調的場景下：有一個對象是處理業務邏輯的回調中使用，但是在其他回調函數中會清理這個對象；
出現了一個問題在處理業務邏輯的回調函數中，還沒有使用完，其他回調函數清空了這個對象，所有代碼中儘量不要用鎖，所以不考慮用鎖的情況

考慮到主要業務處理回調邏輯比較獨立；所以想到了2種方案，

1. 線程內部對象
2. 深度拷貝
   因為業務處理回調函數執行時間很短，又沒有等待邏輯，所以不合適使用線程池+線程內部對象的方式處理，所以在處理業務邏輯函數入口使用了對象的深度拷貝，保證了函數內部都使用的深度拷貝的對象；
   深度拷貝的示例代碼如下，留作備用：

using System;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;

namespace DeepCopyExample
{
    [Serializable]
    public class Person
    {
        public string Name { get; set; }
        public int Age { get; set; }
        public Address Address { get; set; }

        public Person(string name, int age, Address address)
        {
            Name = name;
            Age = age;
            Address = address;
        }

        public Person DeepCopy()
        {
            using (MemoryStream stream = new MemoryStream())
            {
                BinaryFormatter formatter = new BinaryFormatter();
                formatter.Serialize(stream, this);
                stream.Position = 0;
                return (Person)formatter.Deserialize(stream);
            }
        }
    }

    [Serializable]
    public class Address
    {
        public string City { get; set; }
        public string Country { get; set; }

        public Address(string city, string country)
        {
            City = city;
            Country = country;
        }
    }

    internal class Program
    {
        static void Main(string[] args)
        {
            Address address = new Address("Beijing", "China");
            Person person1 = new Person("duwenlong ", 31, address);
            Person person2 = person1.DeepCopy();
            Console.WriteLine($"Person1 Name: {person1.Name}, Age: {person1.Age}, City: {person1.Address.City}, Country: {person1.Address.Country}");
            Console.WriteLine($"Person2 Name: {person2.Name}, Age: {person2.Age}, City: {person2.Address.City}, Country: {person2.Address.Country}");

            Console.WriteLine("changed Person2 City to Henan");
            person2.Address.City = "Henan";

            Console.WriteLine($"Person1 Name: {person1.Name}, Age: {person1.Age}, City: {person1.Address.City}, Country: {person1.Address.Country}");
            Console.WriteLine($"Person2 Name: {person2.Name}, Age: {person2.Age}, City: {person2.Address.City}, Country: {person2.Address.Country}");

            Console.ReadKey();
        }
    }
}

觀察輸出Persion2的城市修改了，Persion1的沒有變化；