people.h

压缩包里有教材<<C++模式设计-基于QT4开源跨平台开发框架>>所有源码

#include "qdatetime.h"

class Person {
public:
    Person(QString name, QDate birthdate)
    QObject(name.ascii()),
    m_Birthdate(birthdate) {}

    Person(const Person& p) : QObject(p),
    m_Birthdate(p.m_Birthdate) {}

private:
    QDate m_Birthdate;
};

class Student : virtual public Person { /* note keyword virtual
    here */
    // other class members
//end
//start
};

class Teacher : virtual public Person { /* virtual inheritance
    */
    // other class members
//end
//start
}


class GraduateTeachingFellow :
    public Student, public Teacher { /* virtual not needed
        here */
public:
    GraduateTeachingFellow(const Person& p,
                           const Student& s, const Teacher& t):
    Person(p), Students(s), Teacher(t) {}     /*  It 
    is necessary to initialize all
    virtual base classes explicitly in
    multiply-derived classes, to resolve
    ambiguity about how they should be
    initialized. */
}