class Name:
  def __init__(self,name):
    self.name = name
  def sayHello(self):
    print("hello",self.name)

class Age:
    def __init__(self,age):
        self.age = age
    def sayHello(self):
        print("hello",self.age)
class User(Name,Age):
    def __init__(self,name,age):
        self.name = name
        self.age = age
    def sayHello(self):
        print("hello",self.name,"今年",self.age,"岁")

cty = User("陈天羽",22)
cty.sayHello()