设计一个人员类person作为基类，其数据成员为姓名和身份证号，成员函数有输入数据和显示数据；再设计一个学生地址类add，包括数据成员地址和年龄，成员函数有输入数据和显示数据；生成person的派生类学生student，student包括数据成员电话号码和c++成绩，成员函数也是有输入数据和显示数据；设计学生成绩类score，它是student类和add类的派生类，继承两个类的所有属性，score类本身有数据成员数学成绩和英语成绩，当然成员函数也有输入数据和显示数据；职员类employee继承person类，类中没有任何成员-Design a staff person class as a base class, its data members name and ID number, member function input data and display data　re-design students address a class add, address and age, including data members, member functions have input data and display data　generating person derived class student student, student data including telephone numbers and c++ member of achievement, is also a member function of input data and display data　design student achievement category score, it is a derived class student class and add the class, inherit two All the properties of the class, score category itself has data members math and English scores, of course there are member functions of input data and display data　the staff person inherits class employee class, the class has no members