# class Chinese(object):

 class Chinese:

     '''

     类的说明性文档

     '''

     pass

 print(Chinese)  # <class '__main__.Chinese'>

 # 类的实例化：类名+小括号，到底做了什么？

 p1 = Chinese()

 print(p1)       # <__main__.Chinese object at 0x0568C2B0>

 class Chinese:

     country = 'China'

     def __init__(self,name):

         self.name = name

     def play(self):

         print("玩耍")

     def sing(self):

         print("唱歌")

 print(Chinese)      # <class '__main__.Chinese'>

 # 打印类的数据字典

 print(Chinese.__dict__)

 #################——数据属性——######################

 # 查看

 print(Chinese.country)  # China

 # 修改

 Chinese.country = '中国'

 print(Chinese.country)  # 中国

 # 增加

 Chinese.dang = '党'

 print(Chinese.dang)

 # 删除

 # print(Chinese.__dict__)

 del Chinese.dang

 # 打印类的数据字典

 # print(Chinese.__dict__)

 #################——函数属性——######################

 def eat(self):

     print("吃吃吃")

 def eat123(self):

     print("吃吃吃123")

 # 增加

 Chinese.eat = eat

 # 查看

 print(Chinese.eat)      # <function eat at 0x04D0C8E8>

 # 打印类的数据字典

 # print(Chinese.__dict__)

 # 修改

 Chinese.eat = eat123

 print(Chinese.eat)      # <function eat123 at 0x04DEC810>

 # 删除

 del Chinese.eat

 # print(Chinese.__dict__)

 class Chinese:

     country = 'China'

     def __init__(self,name):

         self.name = name

     def play(self):

         print("玩耍")

     def sing(self):

         print("唱歌")

 p1 = Chinese('yuan')

 print(p1)           # <__main__.Chinese object at 0x05079CD0>

 # 打印实例的数据字典【即init中的】

 print(p1.__dict__)  # {'name': 'yuan'}

 #################——数据属性——######################

 # 查看

 print(p1.name)      # yuan

 # 增加

 p1.age = 18

 print(p1.age)       #

 # 打印实例的数据字典

 print(p1.__dict__)  # {'name': 'yuan', 'age': 18}

 #不要修改底层的属性字典

 # p1.__dict__['sex']='male'

 # print(p1.__dict__)

 # print(p1.sex)

 # 修改

 p1.age = 23

 print(p1.age)       #

 print(p1.__dict__)  # {'name': 'yuan', 'age': 23}

 # 删除

 del p1.age

 print(p1.__dict__)  # {'name': 'yuan'}

 #################——函数属性——######################

 # 实例没有函数属性

 # 类的属性修改会直接体现到实例

 def eat(self):

     print("吃吃吃")

 # 增加

 p1.eat = eat

 # 查看【忘记吧】

 # p1.eat("###")    # 容易出错

 # p1.eat(p1)

 country = "中国****"

 class Chinese:

     country = 'China'

     def __init__(self,name):

         self.name = name

         print("--->", country)  # ---> 中国****

     def play(self):

         print("玩耍")

     def sing(self):

         print("唱歌")

 p1 = Chinese('yuan')

 # 打印实例的数据字典

 print(p1.__dict__)  # {'name': 'yuan'}

 # 【当实例的数据字典没有时】访问类的数据字典

 print(p1.country)

 p1.country = "中国"

 # 打印实例的数据字典

 print(p1.__dict__)  # {'name': 'yuan', 'country': '中国'}

 # 访问实例的数据字典

 print(p1.country)   # 中国

 # 访问类的数据字典

 print(Chinese.country)  # China

 # 初始化时【country与p1.country、Chinese.country的区别】

 p2 = Chinese('Lucy')    # 初始化时