Python 关联关系

class Boy:

    def __init__(self, name,  girlFriend=None):
        # 在初始化的时候可以给一个对象的属性设置成另一个类的对象
        self.girlFriend = girlFriend  # 一个男孩有一个女朋友

    def chi(self):
        if self.girlFriend:
            print(f"带着他的女朋友{self.girlFriend.name}去吃饭")
        else:
            print("单身狗, 吃什么吃? 滚去学习.")

    def movie(self):
        if self.girlFriend:
            print(f"带着他的女朋友{self.girlFriend.name}去看电影")
        else:
            print("单身狗, 看什么看? 滚去学习.")

class Girl:
    def __init__(self, name):
        self.name = name

b = Boy("宝浪")
g = Girl("孙艺珍")
b.chi()

# alex给包浪介绍了一个女朋. 孙艺珍
b.girlFriend = g
b.chi()

g2 = Girl("梁咏琪")
b.girlFriend = g2 # 换了个女朋友
b.chi()

class School:

    def __init__(self, name):
        self.teach_list = [] # 这里要装多个老师
        self.name = name

    def zhaopin(self, teach):
        self.teach_list.append(teach)

    def shangke(self):
        for t in self.teach_list:
            t.work()

class Teacher:
    def __init__(self, name):
        self.name = name
    def work(self):
        print(f"{self.name}在上课")

lnh = School("老男孩")
t1 = Teacher("武sir")
t2 = Teacher("太白")
t3 = Teacher("哪吒")
t4 = Teacher("女神")
t5 = Teacher("日天")
t6 = Teacher("宝浪")

lnh.zhaopin(t2)
lnh.zhaopin(t3)
lnh.zhaopin(t4)
lnh.zhaopin(t5)
lnh.zhaopin(t6)

lnh.shangke()