在职研究生（多重继承）Python

题目描述

思路分析

AC代码

题目描述

1、建立如下的类继承结构：

1)定义一个人员类CPeople，其属性（保护类型）有：姓名、性别、年龄；

2)从CPeople类派生出学生类CStudent，添加属性：学号和入学成绩；

3)从CPeople类再派生出教师类CTeacher，添加属性：职务、部门；

4)从CStudent和CTeacher类共同派生出在职研究生类CGradOnWork，添加属性：研究方向、导师；

2、分别定义以上类的构造函数、输出函数print及其他函数（如需要）。

3、在主函数中定义各种类的对象，并测试之。

输入

第一行：姓名性别年龄

第二行：学号成绩

第三行：职务部门

第四行：研究方向导师

输出

第一行：People:

第二行及以后各行：格式见Sample

输入样例1

wang-li m 23
2012100365 92.5
assistant computer
robot zhao-jun

输出样例1

People:
Name: wang-li
Sex: m
Age: 23

Student:
Name: wang-li
Sex: m
Age: 23
No.: 2012100365
Score: 92.5

Teacher:
Name: wang-li
Sex: m
Age: 23
Position: assistant
Department: computer

GradOnWork:
Name: wang-li
Sex: m
Age: 23
No.: 2012100365
Score: 92.5
Position: assistant
Department: computer
Direction: robot
Tutor: zhao-jun

思路分析

这道题涉及到类的多重继承，CPeople作为基类派生出CStudent和CTeacher，然后由这两个子类共同派生出CGradOnWork类。

Python的多重继承没有那么复杂，它很聪明，不需要虚函数，它自己会知道要调用哪个成员函数。

而且，对于多重继承来说，两个父类具有相同的属性，这个孙类也只会继承一个。

AC代码

class CPeolpe:def __init__(self,name,sex,age):self.name,self.sex,self.age=name,sex,agedef print(self):print('People:\nName: %s\nSex: %s\nAge: %d\n'%(self.name,self.sex,self.age))
class CStudent(CPeolpe):def __init__(self,name,sex,age,idnum,score):self.name,self.sex,self.age,self.idnum,self.score=name,sex,age,idnum,scoredef print(self):print('Student:\nName: %s\nSex: %s\nAge: %d\nNo.: %s\nScore: %.1f\n'%(self.name,self.sex,self.age,self.idnum,self.score))
class CTeacher(CPeolpe):def __init__(self,name,sex,age,work,department):self.name,self.sex,self.age,self.work,self.department=name,sex,age,work,departmentdef print(self):print('Teacher:\nName: %s\nSex: %s\nAge: %d\nPosition: %s\nDpartment: %s\n'%(self.name,self.sex,self.age,self.work,self.department))
class CGradOnWork(CStudent,CTeacher):def __init__(self,name,sex,age,idnum,score,work,department,direction,tutor):self.name,self.sex,self.age,self.idnum,self.score,self.work,self.department,self.direction,self.tutor=name,sex,age,idnum,score,work,department,direction,tutordef print(self):print('GradOnWork:\nName: %s\nSex: %s\nAge: %d\nNo.: %s\nScore: %.1f\nPosition: %s\nDepartment: %s\nDirection: %s\nTutor: %s\n'%(self.name,self.sex,self.age,self.idnum,self.score,self.work,self.department,self.direction,self.tutor))
name,sex,age=input().split()
idnum,score=input().split()
work,department=input().split()
direction,tutor=input().split()
age=int(age)
score=float(score)
people=CPeolpe(name,sex,age)
people.print()
student=CStudent(name,sex,age,idnum,score)
student.print()
teacher=CTeacher(name,sex,age,work,department)
teacher.print()
outman=CGradOnWork(name,sex,age,idnum,score,work,department,direction,tutor)
outman.print()