小学生绞尽脑汁也学不会的python(面对对象-----类与类之间的关系)
2021-06-17 16:04
标签:女朋友 add ext list 哈希 xxx center 另一个 enter 小学生绞尽脑汁也学不会的python(面对对象-----类与类之间的关系 1. 依赖关系. 2. 关联关系, 聚合关系, 组合关系 3. 继承关系, 实现关系 小学生绞尽脑汁也学不会的python(面对对象-----类与类之间的关系) 标签:女朋友 add ext list 哈希 xxx center 另一个 enter 原文地址:https://www.cnblogs.com/konghui/p/9720925.html
最轻的一种关系
在方法中引入另一个类的对象class Elephant:
def __init__(self, name):
self.name = name
def open(self, ref): # 想要的是一个冰箱。 是哪个冰箱没有制定
print("冰箱哥哥, 开门把")
ref.open_door()
def close(self, ref): # 依赖关系
print("冰箱哥哥, 我进来了。 关门把")
ref.close_door()
def jin(self):
print("进冰箱装自己")
class Refrigerator:
def open_door(self):
print("冰箱陌陌的打开了自己的门")
def close_door(self):
print("冰箱陌陌的关上了自己的门 ")
# class GaoYaGuo:
# def open_door(self):
# print("冰箱陌陌的打开了自己的门")
# def close_door(self):
# print("冰箱陌陌的关上了自己的门 ")
alex = Elephant("李杰")
bx1 = Refrigerator()
#
alex.open(bx1)
alex.jin()
alex.close(bx1)
object
类与类之间的关系是比较紧密的。# class Boy:
# def __init__(self, name, xingge, girlFriend=None):
# self.name = name
# self.xingge = xingge
# self.girlFriend = girlFriend
#
# def yujian(self, girl):
# self.girlFriend = girl
#
# def chi(self):
# if self.girlFriend:
# print("随便池! %s 和 %s" % (self.name, self.girlFriend.name))
# else:
# print("单身狗, 池什么池?")
#
# class Girl:
# def __init__(self, name, boyFriend):
# self.name = name
# self.boyFriend = boyFriend
# def chi(self):
# print("%s在吃饭" % self.name)
#
# girl = Girl("白骨精")
#
# alex = Boy("金王", "娘")
# alex.chi()
#
# alex.yujian(girl)
# alex.chi()
#
# # 找到alex的女朋友
# # alex.girlFriend.name
# alex.girlFriend.chi()
# 一个对多个.
class School:
def __init__(self, name, address, phone):
self.name = name
self.address = address
self.phone = phone
self.__teach_list = []
def zhaopin(self, t):
self.__teach_list.append(t)
def display(self):
for el in self.__teach_list:
print(el.name, el.hobby)
class Teacher:
def __init__(self, name, gender, salary, hobby, school):
self.name = name
self.gender = gender
self.salary = salary
self.hobby = hobby
self.school = school
oldboy_bj = School("北京老男孩", "美丽富饶的沙河", "10086")
oldboy_sh = School("北京老男孩, 上海分校", "上海浦东", "10010")
oldboy_sz = School("北京老男孩, 深圳分校(骑士计划)", "南山区", "10000")
t1 = Teacher("配齐", "男", 200000, "上课", oldboy_bj)
t2 = Teacher("太白", "男", 150000, "开车", oldboy_bj)
t3 = Teacher("Eggon", "男", 123456, "钻研技术", oldboy_sh)
t4 = Teacher("高鑫", "女", 45678, "相夫教子", oldboy_sz)
t5 = Teacher("日天", "男", 666, "看天", oldboy_sz)
# print(t3.school.address) # 找到老师所在的学校的地址
oldboy_bj.zhaopin(t1)
oldboy_bj.zhaopin(t2)
oldboy_bj.display()
oldboy_sh.zhaopin(t3)
oldboy_sz.zhaopin(t4)
oldboy_sz.zhaopin(t5)
oldboy_sz.display()
self:当前执行这个方法的对象。# 可哈希. 内部是否哈希算法 __hash__
# class Foo(object): # 所有的类都会默认继承object
# def __init__(self):
# pass
# def func(self):
# pass
# __hash__ = None
#
# dic = {}
# dic[Foo] = "123456" # 类名是可哈希的。
# dic[Foo()] = "刘伟" # 类中是否包含__hash__
# print(dic)
# 默认的类和对象都是可哈希的
# class Base:
# def __init__(self, num):
# self.num = num
#
# def func1(self):
# print(self.num)
#
# class Foo(Base):
# pass
#
# obj = Foo(123)
# obj.func1() # 123
# class Base:
# def __init__(self, num):
# self.num = num
# def func1(self):
# print(self.num)
#
# class Foo(Base):
# def func1(self):
# print("Foo. func1", self.num)
#
# obj = Foo(123)
# obj.func1() # ???? Foo. func1 123
#
# class Base:
# def __init__(self, num):
# self.num = num
# def func1(self):
# print(self.num)
# self.func2()
# def func2(self):
# print("Base.func2")
#
# class Foo(Base):
# def func2(self):
# print("Foo.func2")
#
# obj = Foo(123)
# obj.func1() # 123
# class Base:
# def __init__(self, num):
# self.num = num
#
# def func1(self):
# print(self.num)
# self.func2()
#
# def func2(self):
# print(111, self.num)
#
# class Foo(Base):
# def func2(self):
# print(222, self.num)
#
# lst = [Base(1), Base(2), Foo(3)]
# for obj in lst:
# obj.func2()
# class Base:
# def __init__(self, num):
# self.num = num
#
# def func1(self):
# print(self.num)
# self.func2()
#
# def func2(self):
# print(111, self.num)
#
# class Foo(Base):
# def func2(self):
# print(222, self.num)
#
# lst = [Base(1), Base(2), Foo(3)]
# for obj in lst:
# obj.func1()
# 1
# 111 1
# 2
# 111 2
# 3
# 222 3
# 总结: self当前访问xx方法的那个对象
4. 特殊成员(__init__)class Foo:
def __init__(self):
print("我是初始化")
def __call__(self, *args, **kwargs):
print("我是靠")
def __getitem__(self, item):
print("我是getitem", item)
return "大胖小子"
def __setitem__(self, key, value):
print(key, value)
def __delitem__(self, key):
print(key)
def __enter__(self):
print("我是进入")
return "周润发"
def __exit__(self, exc_type, exc_val, exc_tb):
print("我是出来")
# 类名() __init__() 构造方法
# obj = Foo()
# 对象() __call__()
# obj() # python特有的.
# 对象[xxx] 从对象中获取数据 默认执行__getitem__()
# 对象[xxx] = ,.... 默认执行__setitem__()
# obj["汪峰"] = "章子怡"
# del obj[key] 默认执行__delitem__()
# del obj[‘马化腾‘]
# dic = {"name":‘汪峰‘, ‘age‘:18}
# print(dic[‘name‘])
#
# with obj as xx:
# print(xx)
# print("你好. 我叫周润发")
class Boy(object):
def __init__(self, name, address, phone):
self.name = name
self.address = address
self.phone = phone
def __str__(self):
return "name:%s, address:%s phone:%s" % (self.name, self.address, self.phone)
def __new__(cls, *args, **kwargs):
print("新概念")
return object.__new__(cls) # 这句话才是创建对象.
b = Boy("alex", "北京沙河", "10086")
print(b)
lst = [123,456]
print(lst)
文章标题:小学生绞尽脑汁也学不会的python(面对对象-----类与类之间的关系)
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