main.cpp

#include <iostream>
#include "Person.h"
using namespace std;int main()
{Person myPerson;// Person myPerson("S.M.Wang", 070145, "莲花路200号");cout << "请输入姓名:" ;string name;cin >> name;cout << "请输入ID:" ;int id;cin >> id;cout << "请输入住址:" ;string address;cin >> address;Date myDate;cout << "请输入生日年:" ;int year;cin >> year;cout << "请输入生日月:" ;int month;cin >> month;cout << "请输入生日天:" ;int day;cin >> day;myPerson.setName(name);myPerson.setID(id);myPerson.setAddress(address);myDate.setYear(year);myDate.setMonth(month);myDate.setDay(day);myPerson.setBirthday(myDate); // 调用的形参为类myPerson.print();return 0;
}

Person.h

#include <iostream>
#include "Date.h"
using namespace std;class Person
{
public:Person();Person(string name, int id, string address);~Person();void setPerson(string name, int id, string address);void setName(string name);void setID(int id);void setAddress(string address);void setBirthday(Date d);string getName();int getID();string getAddress();Date getBirthday();void print(); // outPutResult
private:string Name;int ID;string Address;Date Birthday;
};

Person.cpp

#include "Person.h"
#include <iostream>
using namespace std;Person::Person()
{Name = "S.M.Wang";ID = 070145;Address = "莲花路200号";
}Person::Person(string name, int id, string address)
{setPerson(name, id, address);
}Person::~Person()
{//cout << "object Destructor is called" << endl;
}void Person::setPerson(string name, int id, string address)
{Name = name;ID = id;Address = address;
}void Person::setName(string name)
{Name = name;
}void Person::setID(int id)
{ID = id;
}void Person::setAddress(string address)
{Address = address;
}string Person::getName()
{return Name;
}int Person::getID()
{return ID;
}string Person::getAddress()
{return Address;
}void Person::setBirthday(Date d) // 调用的形参是类
{Birthday = d;
}Date Person::getBirthday() // 返回的是类
{return Birthday;
}void Person::print()
{cout << "Name:" << getName() << endl;cout << "ID:" << getID() << endl;cout << "Address:" << getAddress() << endl;cout << "Birthday:" << getBirthday().getYear(); // getBirthday()返回的是类，再调用类中的子函数满足cout的返回值。cout << " " << getBirthday().getMonth();cout << " " << getBirthday().getDay() << endl;
}

Date.h

#include <iostream>using namespace std;class Date
{friend class Person;
public:Date();Date(int y, int m, int d);~Date();void setYear(int y);void setMonth(int m);void setDay(int d);int getYear();int getMonth();int getDay();void print();
private:int Year;int Month;int Day;};

Date.cpp

#include "Date.h"
#include <iostream>
using namespace std;Date::Date()
{Year = 0;Month = 0;Day = 0;
}Date::Date(int year, int month, int day)
{setYear(year);setMonth(month);setDay(day);
}Date::~Date()
{//cout << "object Destructor is called" << endl;
}void Date::setYear(int year)
{Year = year;
}void Date::setMonth(int month)
{Month = month;
}void Date::setDay(int day)
{Day = day;
}int Date::getYear()
{return Year;
}int Date::getMonth()
{return Month;
}int Date::getDay()
{return Day;
}void Date::print()
{cout << "Year :" << getYear() << endl;cout << "Month :" << getMonth() << endl;cout << "Day :" << getDay() << endl;
}

Result: