using System;public class IdInfo{    public int IdNumber = 2;}public class Person : ICloneable{    public int Age;    public string Name;    public IdInfo IdInfo;    public Person()    { IdInfo = new IdInfo(); }    public Person ShallowCopy()//浅赋值也成为影子拷贝    {        return (Person)(MemberwiseClone());    }    public object Clone()//深复制    {        Person other;        other=(Person)this.MemberwiseClone();//语句1
        语句1执行完后，局部变量other的值类型成员有了自己的空间，但是引用类型成员IdInfo指向的是this所指的空间，也就是说other和this所指的变量共同指向同一个空间        other.IdInfo = new IdInfo();//语句2  这句执行后other的引用类型的成员IdInfo有了属于自己的空间        return other;    }} //语句1和语句2的顺序不能颠倒，不然会发生如下错误

public class Example{    public static void Main()    {        Person p1 = new Person();        p1.Age = 11;        p1.Name = "lei";        Person p2 = p1.ShallowCopy();        Person p3 = (Person)p1.Clone();        Console.WriteLine("Original values of p1 and p2,p3:");        Console.WriteLine("   p1 instance values: ");        DisplayValues(p1);        Console.WriteLine("   p2 instance values:");        DisplayValues(p2);        Console.WriteLine("   p3 instance values: ");        DisplayValues(p3);       // Change the value of p1 properties and display the values of p1 and p2,p3.        p1.Age = 12; //p1改变观看p2,p3的变化;        p1.Name = "cao";         p1.IdInfo.IdNumber = 3;        p3.IdInfo.IdNumber = 4;//p3的值改变        Console.WriteLine("\nValues of p1 and p2 after changes to p1:");        Console.WriteLine("   p1 instance values: ");        DisplayValues(p1);        Console.WriteLine("   p2 instance values:");        DisplayValues(p2);        Console.WriteLine("   p3 instance values: ");        DisplayValues(p3);        Console.ReadLine();       }    public static void DisplayValues(Person p)    {        Console.WriteLine("      Name: {0:s}, Age: {1:d}", p.Name, p.Age);        Console.WriteLine("      Value: {0:d}", p.IdInfo.IdNumber);    }}

using System;public class IdInfo{    public int IdNumber;    public IdInfo(int IdNumber)    {        this.IdNumber = IdNumber;    }}public class Person {    public int Age;    public string Name;    public IdInfo IdInfo;    public Person ShallowCopy()    {       return (Person)this.MemberwiseClone();    }    public Person DeepCopy()    {       Person other = (Person) this.MemberwiseClone();        other.IdInfo = new IdInfo(this.IdInfo.IdNumber);       return other;    }}public class Example{    public static void Main()    {        // Create an instance of Person and assign values to its fields.        Person p1 = new Person();        p1.Age = 42;        p1.Name = "Sam";        p1.IdInfo = new IdInfo(6565);        // Perform a shallow copy of p1 and assign it to p2.        Person p2 = (Person) p1.ShallowCopy();        // Display values of p1, p2        Console.WriteLine("Original values of p1 and p2:");        Console.WriteLine("   p1 instance values: ");        DisplayValues(p1);        Console.WriteLine("   p2 instance values:");        DisplayValues(p2);        // Change the value of p1 properties and display the values of p1 and p2.        p1.Age = 32;        p1.Name = "Frank";        p1.IdInfo.IdNumber = 7878;        Console.WriteLine("\nValues of p1 and p2 after changes to p1:");        Console.WriteLine("   p1 instance values: ");        DisplayValues(p1);        Console.WriteLine("   p2 instance values:");        DisplayValues(p2);        // Make a deep copy of p1 and assign it to p3.        Person p3 = p1.DeepCopy();        // Change the members of the p1 class to new values to show the deep copy.        p1.Name = "George";        p1.Age = 39;        p1.IdInfo.IdNumber = 8641;        Console.WriteLine("\nValues of p1 and p3 after changes to p1:");        Console.WriteLine("   p1 instance values: ");        DisplayValues(p1);        Console.WriteLine("   p3 instance values:");        DisplayValues(p3);    }    public static void DisplayValues(Person p)    {        Console.WriteLine("      Name: {0:s}, Age: {1:d}", p.Name, p.Age);        Console.WriteLine("      Value: {0:d}", p.IdInfo.IdNumber);    }}
http://msdn.microsoft.com/zh-cn/library/system.object.memberwiseclone(v=vs.110).aspx

ICloneable 接口支持克隆，即用与现有实例相同的值创建类的新实例。public interface ICloneableICloneable 类型公开以下成员。ICloneable.Clone 方法创建作为当前实例副本的新对象。Object Clone()返回值类型：System.Object作为此实例副本的新对象。Object.MemberwiseClone 方法创建当前 Object 的浅表副本。protected Object MemberwiseClone()返回值类型：System.Object当前 Object 的浅表副