#__author__ = 'DouYunQian'
#coding=utf-8
'''
Python??????????
'''
class C1:
def __init__(self,name,obj):
self.name=name
self.obj=obj
class C2:
def __init__(self,name,age):
self.name=name
self.age=age
N1=C2("alex",18)
N2=C1("good",N1)
print(N2.obj.age)