解析设计模式中的Prototype原型模式及在C++中的使用

#include <iostream> 
using namespace std; 
 
class Student 
{ 
protected: 
  int id; 
  char name[10]; 
 
public: 
  Student() 
  { 
  } 
  ~Student() 
  { 
    cout<<"Desconstuct...."<<endl; 
  } 
 
  virtual Student *Clone() 
  {} 
   
  virtual void Show() 
  { }  
}; 
 
   
class StudentTypeA:public Student 
{ 
public: 
  StudentTypeA(const char *name_input) 
  { 
    strcpy(name, name_input);  
    this->id = 0; 
    cout<<"Construction....."<<endl; 
  } 
 
  StudentTypeA(const StudentTypeA&other) 
  { 
    cout<<"Copy Construction..."<<endl; 
    this->id = other.id; 
    this->id ++; 
    strcpy(this->name, other.name); 
  } 
 
  virtual StudentTypeA *Clone() 
  { 
    StudentTypeA *tmp = new StudentTypeA(*this); 
    return tmp; 
  } 
  void Show() 
  { 
    cout<<"Student id == "<< id << " name == "<< name <<endl; 
  } 
  ~StudentTypeA() 
  { 
    cout<<"Deconstruction StudentTypeA"<<endl; 
  } 
}; 
 
int main() 
{ 
  Student *student1 = new StudentTypeA("fulima"); 
  Student *student2 = student1->Clone(); 
  Student *student3 = student2->Clone();   
   
  student1->Show(); 
  student2->Show(); 
  student3->Show();   
   
  return 0; 
}