类（三）组合

class family(object):
    family = ‘this is a family of three‘
    def __init__(self,mother,father):
        self.mother = mother
        self.father = father
    def menber_name(self):
        print(self.mother,self.father)

class Who(object):
    what = ‘what‘
    # brother = ‘jack‘
    def __init__(self,name,age,gender,family): ##将前面定义的family类，加入到Who类的数据属性中
        self.name = name
        self.age = age
        self.gender =gender
        self.family = family
    @property
    def information(self):
        print(self.name,self.age,self.gender)
        print(self.family.mother,self.family.father) ##通过self.family.mother调用family类中的数据
        return self.name
p0 = family(‘anna‘,‘jack‘)
p1 = Who(‘张三‘,18,‘男‘,p0)
a = p1.information