按照书上的代码，深克隆的示例代码编译没通过(可能是印刷时漏掉了某一行代码)，所以重新修改了下，贴在这里以供阅读本书时跟我遇到一样问题的园友参考：
浅克隆示例:
要点:克隆之后，新旧对象还是指向同一个引用，不管修改哪一个对象，都会影响另一个对象
namespace CloneTest
{
class Program
{
static void Main(string[] args)
{
Enrollment sourceStudentsList = new Enrollment();
sourceStudentsList.students.Add(new Student() { Name = "王小二", Age = 27 });
sourceStudentsList.students.Add(new Student() { Name = "张三", Age = 22 });
Enrollment cloneStudentsList = sourceStudentsList.Clone() as Enrollment;
sourceStudentsList.ShowEnrollmentInfo("source");
Console.WriteLine("----------------------------------------------------------------");
cloneStudentsList.ShowEnrollmentInfo("clone");
cloneStudentsList.students[1].Name = "李四";
cloneStudentsList.students[1].Age = 36;
Console.WriteLine("----------------------------------------------------------------");
Console.WriteLine("浅clone之后，修改clone对象将影响source对象");
Console.WriteLine("----------------------------------------------------------------");
sourceStudentsList.ShowEnrollmentInfo("source");
Console.WriteLine("----------------------------------------------------------------");
cloneStudentsList.ShowEnrollmentInfo("clone");
Console.ReadLine();
}
}
class Student
{
public string Name { set; get; }
public Int32 Age { set; get; }
public void ShowInfo()
{
Console.WriteLine("{0}'s age is {1}", Name, Age);
}
}
class Enrollment : ICloneable
{
public List<Student> students = new List<Student>();
public void ShowEnrollmentInfo(string Prefix) {
Console.WriteLine(Prefix + " Students enrollment infomation：");
foreach (Student s in students)
{
s.ShowInfo();
}
}
public object Clone() {
return MemberwiseClone();
}
}
}
深克隆示例:
要点:深克隆要求完成克隆后，不管如何设置克隆出的新对象，都不会影响源对象(即新旧对象完全不相干)
using System;
using System.Collections.Generic;
namespace CloneTest
{
class Program
{
static void Main(string[] args)
{
Enrollment sourceStudentsList = new Enrollment();
sourceStudentsList.students.Add(new Student() { Name = "王小二", Age = 27 });
sourceStudentsList.students.Add(new Student() { Name = "张三", Age = 22 });
Enrollment cloneStudentsList = sourceStudentsList.Clone() as Enrollment;
sourceStudentsList.ShowEnrollmentInfo("source");
Console.WriteLine("----------------------------------------------------------------");
cloneStudentsList.ShowEnrollmentInfo("clone");
cloneStudentsList.students[1].Name = "李四";
cloneStudentsList.students[1].Age = 36;
Console.WriteLine("----------------------------------------------------------------");
Console.WriteLine("深clone之后，修改clone对象不影响source对象");
Console.WriteLine("----------------------------------------------------------------");
sourceStudentsList.ShowEnrollmentInfo("source");
Console.WriteLine("----------------------------------------------------------------");
cloneStudentsList.ShowEnrollmentInfo("clone");
Console.ReadLine();
}
}
class Student
{
public string Name { set; get; }
public Int32 Age { set; get; }
public void ShowInfo()
{
Console.WriteLine("{0}'s age is {1}", Name, Age);
}
}
class Enrollment : ICloneable
{
public List<Student> students = new List<Student>();
public void ShowEnrollmentInfo(string Prefix) {
Console.WriteLine(Prefix + " Students enrollment infomation：");
foreach (Student s in students)
{
s.ShowInfo();
}
}
//提供一个默认的公有构架函数，以保证Enrollment sourceStudentsList = new Enrollment();能正常编译通过
public Enrollment() { }
/// <summary>
/// 提供了一个私有构造函数
/// </summary>
/// <param name="studentList"></param>
private Enrollment(List<Student> studentList)
{
foreach (Student s in studentList)
{
students.Add(new Student() { Name = s.Name, Age = s.Age });//注：原书P309的代码students.Add((Student)s.Clone());编译通不过--提示Student没有Clone方法，所以换成了这个
}
}
public object Clone() {
return new Enrollment(students);
}
}
}