7_21 day25 32min 组合 选课系统

class  School:
    def __init__(self,name,address):
        self.name=name
        self.address=address
    def zhao_sheng(self):
        print('%s正在招生'%self.name)

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

s1=School('oldboy','北京')
s2=School('oldboy','南京')
s3=School('oldboy','东京')
c1=Course('Linux',10,'1h',s1)
# print(c1.__dict__)
# print(c1.school.name)

msg='''
1 老男孩 北京校区
2 老男孩 南京校区
3 老男孩 东京校区
'''

while  True:
    print(msg)
    menu={
        '1':s1,
        '2':s2,
        '3':s3,
    }
    choice=input('选择学校>>')
    school_obj=menu[choice]
    name=input('课程名>>：')
    price= input('费用>>：')
    period = input('周期>>：')

    new_couese=Course(name,price,period,school_obj)
    print('课程%s属于%s学校'%(new_couese.name,new_couese.school.name))

主要看思考怎么关联的