实验五 类的继承实验3．编写一个基类Shape,在此基础上派生出类Triangle和Circle,二者都有计算对象面积的函数GetArea( )和计算对象周长的函数GetPerim（）。

4．开发一个简单的大学人员管理程序，该程序可以管理大学的一些基本人员：学生（student）、教师（teacher）、教授（professor）。首先设计一个虚基类person。通过该类保存人员的最基本信息：姓名（name）、年龄（age）和性别（sex）。然后使用该类派生出学生类student和教师类teacher，在其中添加各自的特性，如在student类中添加如下信息：专业（speciality），在teacher类中添加院系（department）等。还有部分教师在工作的同时在职修读学位，因此同时具有教师和学生双重身份，所以由student类和teacher类再次派生出stuTeacher类。为每个类定义一个输出函数print()，输出该类相关信息。

5．简易银行账户系统，银行帐户类派生出定期储户类和信用卡类。（选作）

-Experimental class inheritance experiments.Write a base class Shape, on the basis of the derived classes Triangle and Circle, both to calculate the function of the object area GetArea () function to calculate the object perimeter GetPerim ().

4. Develop a simple university personnel management program, the program can manage the University some of the basic staff: students (student) teachers (teacher), professor (professor). First, the design of a virtual base class person Show. Class to save the most basic information: name (name), age (age) and gender (sex). Derived student class student and teacher class teacher and then use the class in which to add their own features, such as in the student class, add the following information: professional (speciality), added in the teacher class faculty (department). There are some teachers in the work at the same time are pursuing a degree, so also has the dual capacity of teachers and students, so again by the student class and the teacher cl