組合

　　1、概念

　　　　組合就是一個物件擁有一個屬性，該屬性的值是另外一個物件

　　2、作用

　　　　解決類與類之間的程式碼冗餘問題

　　3、程式碼

class People():
    school = 'SH'

    def __init__(self, name, age, gender, ):
        self.name = name
        self.age = age
        self.gender = gender


class Admin(People):
    pass


class Course():
    def __init__
 
(self, name, period, price, ):
        self.name = name
        self.period = period
        self.price = price


python = Course('python', '6mon', 10000)
linux = Course('linux', '5mon', 20000)


class Student(People, Course):
    def __init__(self, name, age, gender, course=None):
        if course is None:
            course 
 
= []
        self.courses = course
        super().__init__(name, age, gender, )

    def choose_course(self, stu_obj, course):
        stu_obj.courses.append(course)

class Teacher(People, Course):
    def __init__(self, name, age, gender, level):
        self.level = level
        super().__init__
 
(name, age, gender, )

    def score(self, stu_obj, score):
        stu_obj.score = score


tea = Teacher('tony', 19, 'male', 10)
tea.course = linux
print(tea.course.name)
print(tea.course.price)
print(tea.course.period)