python class用法

#!/usr/bin/env python
# -*- coding:utf-8 -*- 

class Restaurant():
    def __init__(self,name,type):
        '''初始化属性name/type和属性years默认值为100'''
        self.name=name
        self.type=type
        self.years=100
    def describe_restaurant(self):
        '''描述餐馆的名称以及类型'''
        print("the restaurant'name is " + self.name.title()
              + " it's a "
              + self.type
              + " restaurant.")
    def open_restayurant(self):
        '''指出餐馆正在营业'''
        print("the restaurant is working.")
    def working_time(self):
        '''指出餐馆营业时间'''
        print("the restaurant has working " + str(self.years) + "!")
    def update_year(self,years):
        '''更新餐馆营业时间，此值只能大于原有时间设置'''
        if years >= self.years:
            self.years = years
        else:
            print('you can not roll back !')
    def increat_years(self,time):
        '''从原有时间基础之上增加新的餐馆营业的时间'''
        if time >= 0:
            self.years += time
        else:
            print('请输入不小于0的值')

#调用
my_restaurant=Restaurant('HAOZAILAI','CHINESE')
print(my_restaurant.name.title())
print(my_restaurant.type)
my_restaurant.describe_restaurant()
my_restaurant.open_restayurant()
my_restaurant.working_time()

'''直接访问属性修改属性'''
# my_restaurant.years=200
'''利用方法修改属性'''
my_restaurant.update_year(200)

my_restaurant.working_time()
my_restaurant.increat_years(10)
my_restaurant.working_time()

Haozailai
CHINESE
the restaurant'name is Haozailai it's a CHINESE restaurant.
the restaurant is working.
the restaurant has working 100!
the restaurant has working 200!
the restaurant has working 210!