观察者模式

# class Rise():
#     def __init__(self):
#         self.obsv=[]
#         self.status=''
#     def attach(self,ob):
#         self.obsv.append(ob)
#     def notify(self):
#         for x in self.obsv:
#             x.update()
# class Observe():
#     def __init__(self,name,rs):
#         self.name=name
#         self.rs=rs
#     def update(self):
#         print('%s %s请不要玩游戏了'%(self.rs.status,self.name))
# class Manager():
#     def __init__(self,name,boss):
#         self.name=name
#         self.boss=boss
#     def update(self):
#         print('%s,%s请到北京饭店一起聚会'%(self.boss.status,self.name))
# if __name__ == '__main__':
#     resi=Rise()
#     obj_zs=Observe('张三',resi)
#     obj_ls=Observe('李四',resi)
#     obj_xh=Observe('小红',resi)
#     m_xm=Manager('刘强东',resi)
#     my=Manager('马云',resi)
#     resi.attach(obj_zs)
#     resi.attach(obj_ls)
#     resi.attach(obj_xh)
#     resi.attach(m_xm)
#     resi.attach(my)
#     resi.status='老板来了'
#     resi.notify()