Design Pattern 6: Prototype Pattern

1. My description

In my understanding, what is the prototype mode is to clone n objects. The cloned object should be exactly the same. Of course, you can modify the content of the cloned object. For C ++, the copy constructor is used. This mode is relatively simple, so it is no longer arrogant.

Ii. UML diagram

　　

3. My code

#include<iostream>using namespace std;#include <string>class WorkExperience {public:    WorkExperience(string n) : name(n) {}    WorkExperience() {}    void SetName(string n) { name = n;}    string GetName() { return name; }    void SetDate(string d) { date = d; }    string GetDate() { return date; }    void SetCompany (string c) { company = c; }    string GetCompany() { return company; }private:    string name;    string date;    string company;};class Resume : public WorkExperience {public:    Resume (string n) : WorkExperience(n) {}    Resume (Resume& r) {        SetName(r.GetName());        SetDate(r.GetDate());        SetCompany(r.GetCompany());    }    Resume* Clone() {        return new Resume(*this);     }};int main(){    Resume *p_resume1 = new Resume("george");    p_resume1->SetDate("2003");    p_resume1->SetCompany("xxx");    Resume *p_resume2 = p_resume1->Clone();    p_resume2->SetDate("2004");    p_resume2->SetCompany("yyy");    cout << "Resume 1: " << p_resume1->GetName() << " " << p_resume1->GetDate() << " " << p_resume1->GetCompany() << endl;    delete p_resume1;    cout << "Resume 2: " << p_resume2->GetName() << " " << p_resume2->GetDate() << " " << p_resume2->GetCompany() << endl;    delete p_resume2;}

 

Design Pattern 6: Prototype Pattern