public static StudentProperty CreateInstanceClone()
{
//原型模式，创建一个对象，并把它复制出来,可以快速的创造一大堆对象
StudentProperty studentCopy = (StudentProperty)_StudentProperty.MemberwiseClone();
return(studentCopy);
}
static StudentProperty()
{
_StudentProperty = new StudentProperty();
_StudentProperty.Name = "构造1";
_StudentProperty.Class = new Advanced()
{
Id = 1,
Name = "班级1班"
};
}
static void Main(string[] args)
{
//Student student1 = Student.CreateInstanceSingleton();
//student1.Name = "学生1";
//Student student2 = Student.CreateInstanceSingleton();
//student2.Name = "学生2";
/* 上部分的执行结果 student1 的name 会被覆盖，变成学生2*/
//StudentProperty studentProperty1 = StudentProperty.CreateInstanceClone();
//Console.WriteLine("{0}", studentProperty1.Name);
//studentProperty1.Name = "复制1";
//StudentProperty studentProperty2 = StudentProperty.CreateInstanceClone();
//Console.WriteLine("{0}", studentProperty2.Name);
//studentProperty2.Name = "复制2";
//Console.WriteLine("{0}",studentProperty1.Name);
//Console.WriteLine("{0}", studentProperty2.Name);
/* 以上部分浅克隆 ，不会出现问题 */
StudentProperty studentProperty1 = StudentProperty.CreateInstanceClone();
studentProperty1.Name = "复制1"; //string 也是引用类型 =的赋值，就是把studentProperty1重新指定了一个引用，
studentProperty1.Id = 1;
studentProperty1.Now = DateTime.Now;
Console.WriteLine("s11{0}", studentProperty1.Class.Name);
studentProperty1.Class.Name = "重定义班级1班";
Console.WriteLine("s12{0}，{1}", studentProperty1.Name, studentProperty1.Class.Name);
StudentProperty studentProperty2 = StudentProperty.CreateInstanceClone();
//这两个对象引用同一个地址，其中的引用对象class 是引用的同一个地址
studentProperty2.Name = "复制2";
studentProperty2.Id = 2;
studentProperty2.Now = DateTime.Now.AddDays(1);
Console.WriteLine("s21{0}", studentProperty2.Class.Name);//而class 这儿是重新指定了一个地址，但两个对象还是指向这同一个class
//student1=>指向class class=>addr1=>addr2
//student2=>class
studentProperty2.Class.Name = "班级2班";
Console.WriteLine("s13{0}，{1}", studentProperty1.Name, studentProperty1.Class.Name);
Console.WriteLine("s22{0}，{1}", studentProperty2.Name, studentProperty2.Class.Name);
/* 以上部分浅克隆，当引用了class 时 s1 和 s2 的class.name 都是s2的*/
//借助序列化，实现深克隆
//StudentProperty类要标记 [Serializable]特性后，才允许序列化，其中的Advanced 也要[Serializable]
StudentProperty studentProperty3 = SerializeHelper.Derializable <StudentProperty>(SerializeHelper.Serializable(studentProperty2));
studentProperty3.Class.Name = "深度克隆3班";
Console.WriteLine("s31{0}", studentProperty3.Class.Name);
Console.Read();
}