您好，类的定义及使用参考样例：

!/usr/bin/env python

-- coding: utf-8 --

'''
1.class类的组合使用
2.手机、邮箱、QQ等是可以变化的（定义在一起），姓名不可变（单独定义）。
3.在另一个类中引用
'''

class Info(object):

def __init__(self, phone, email, qq):
    self.phone = phone
    self.email = email
    self.qq = qq

def get_phone(self):
    return self.phone

def update_phone(self, newphone):
    self.phone = newphone
    print "手机号更改已更改"

def get_email(self):
    return self.email

class AddrBook(object):

'''docstring for AddBook'''
def __init__(self, name, phone, email, qq):
    self.name = name
    self.info = Info(phone, email, qq)

if name == "__main__":

Detian = AddrBook('handetian', '18210413001', 'detian@xkops.com', '123456')
print Detian.info.get_phone()
Detian.info.update_phone(18210413002)
print Detian.info.get_phone()
print Detian.info.get_email()