class School:

    """

    学校类

    """

    def __init__(self,name,address):

        self.name = name

        self.address = address

class Course:

    """

    课程类

    """

    def __init__(self,name,price,period,school):

        self.name = name

        self.price = price

        self.period = period

        self.school = school

class Teacher:

    """

    老师类

    """

    def __init__(self,name,gender,age,course):

        self.name = name

        self.gender = gender

        self.age = age

        self.course = course

#学校实例化

x1 = School("oldboy","北京校区")

x2 = School("oldboy","天津校区")

x3 = School("oldboy","南京校区")

#课程实例化

k1 = Course("python",19880,"6个月",x1) #课程与学校关联

k2 = Course("linux",17880,"4个月",x2)

k3 = Course("go",20000,"8个月",x3)

#教师实例化

j1 = Teacher("alex","male",34,k2) #教师与课程关联

j2 = Teacher("武sir","male",30,k1)

j3 = Teacher("林海峰","male",35,k3)

print(k1.__dict__)

print(k1.school.name)

print(j1.__dict__)

print(j1.course.name)

msg = """

1 oldboy 北京校区

2 oldboy 天津校区

3 oldboy 南京校区

"""

res = """

1 python

2 linux

3 go

"""

while True:

    print(msg)

    menu = {

        "":x1,

        "":x2,

        "":x3,

    }

    choice = input("选择学校>>>:")

    school_boj = menu[choice]

    name = input("课程名称>>>:")

    price = input("课程价钱>>>:")

    period = input("课程周期>>>:")

    new_course = Course(name,price,period,school_boj)

    print("课程【%s】属于【%s】学校"%(new_course.name,new_course.school.name))

    print(res)

    inner = {

        "":k1,

        "":k2,

        "":k3,

    }

    choice1 = input("选择课程>>>:")

    course_boj = inner[choice1]

    name = input("老师名称>>>:")

    gender = input("老师性别>>>:")

    age = input("老师年龄>>>:")

    new_teacher = Teacher(name,gender,age,course_boj)

    print("老师【%s】教的是【%s】"%(new_teacher.name,new_teacher.course.name))