/*用序列化实现 深copy
*注意事项
*1.必须带有不带参数的公共构造函数
*2.如果包含集合,那么集合必须是强制类型类型
*3.集合必须有与类型一致的默认属性
*4.集合必须有与类型一致的Add方法
*5.需要序列化的对象不能循环引用
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
namespace ConsoleApplication1
{
[Serializable]
public abstract class Animal
{
public int i;
public double d;
public byte b;
public string[] s;
public abstract Animal Clone();
public abstract Animal CreateDeepCopy();
}
[Serializable]
public class Dog : Animal
{
public Dog(int i, double d, byte b,string s1,string s2)
{
this.i = i;
this.d = d;
this.b = b;
string[] ms={s1,s2};
this.s=ms;
}
public override Animal Clone()
{
return (Animal)this.MemberwiseClone();
}
//实现深拷贝
public override Animal CreateDeepCopy()
{
Animal animal;
MemoryStream memoryStream = new MemoryStream();
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(memoryStream, this);
memoryStream.Position = 0;
//反序列化
animal = (Animal)formatter.Deserialize(memoryStream);
return animal;
}
}
public class App
{
public static void Main()
{
Animal a1 = new Dog(1, 2, 3,"A","B");
System.Console.WriteLine("Animal a1 's members : i={0} d= {1} b={2} s1={3} s2={4}", a1.i, a1.d, a1.b,a1.s[0],a1.s[1]);
Animal a2;
//a2 = a1.Clone();
a2 = a1.CreateDeepCopy();
System.Console.WriteLine("Animal a2 's members : i={0} d= {1} b={2}s1={3} s2={4}", a2.i, a2.d, a2.b, a2.s[0], a2.s[1]);
System.Console.ReadLine();
System.Console.WriteLine("do a1.i = 9;a1.s[0] = C");
a1.i = 9; a1.s[0] = "C";
System.Console.WriteLine("Animal a1 's members : i={0} d= {1} b={2}s1={3} s2={4}", a1.i, a1.d, a1.b, a1.s[0], a1.s[1]);
System.Console.WriteLine("Animal a2 's members : i={0} d= {1} b={2}s1={3} s2={4}", a2.i, a2.d, a2.b, a2.s[0], a2.s[1]);
System.Console.WriteLine("do a2.i = 8;a2.s[1] =D");
a2.i = 8; a2.s[1] = "D";
System.Console.WriteLine("Animal a1 's members : i={0} d= {1} b={2}s1={3} s2={4}", a1.i, a1.d, a1.b, a1.s[0], a1.s[1]);
System.Console.WriteLine("Animal a2 's members : i={0} d= {1} b={2}s1={3} s2={4}", a2.i, a2.d, a2.b, a2.s[0], a2.s[1]);
System.Console.ReadLine();
}
}
}
文章来源:http://blog.csdn.net/Open2ye/archive/2006/05/06/710602.aspx
