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#include<iostream.h>#include"date11.h"voidmain(){Teachera;Studentb;Postgradc;Tpostd;a.print();a.Date::print();b.print();b.Date::print();c.print();c.Date::print();d.Teacher::print();d.Postgrad::print();}#include<iostream.h>classDate{public:voidprint(){cout<<"姓名:"<<"name"<<endl;}};classTeacher:publicDate{public:voidprint(){cout<<"工资:"<<"sal"<<endl;}};classStudent:publicDate{public:voidprint(){cout<<"学号:"<<"id"<<endl;}};classPostgrad:publicStudent{public:voidprint(){cout<<"系别:"<<"dn"<<endl;}};classTpost:publicTeacher,publicPostgrad{};
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