day18--初识面向对象

class Dog:
    level = "动物"
    mind = "傻子"       #第一部分,静态变量,静态字段
    language = "汪汪汪"

    def __init__(self,name,age,hobby):
        self.name = name
        self.age = age       #第二部分,动态方法,函数
        self.hobby = hobby

class Dog:
    level = "动物"
    language = "汪汪汪"18:00:59    type = "狗"

    def __init__(self,name,age,sex):
        self.name1 = name
        self.age1 = age
        self.sex1 = sex


    def eat(self):
        print("chichichi")

wangcai = Dog("旺财",2,"女")
print(wangcai.__dict__)  #查看类中所有的变量及方法
print(Dog.level)    #使用类名.变量的方法进行查询
Dog.language = "喵喵喵"  #更改
print(Dog.__dict__)
del Dog.type      #删除
print(Dog.__dict__)
Dog.eat(111)   #类名对动态方法的操作

class Dog:
    level = "动物"
    language = "汪汪汪"
    type = "狗"

    def __init__(self,name,age,sex):
        self.name1 = name
        self.age1 = age
        self.sex1 = sex


    def eat(self):
        print("chichichi")

#xiaohua = Dog()  #这个过程叫做实例化一个对象
wangcai = Dog("旺财",2,"女")  #查找对象中所有属性
print(wangcai.__dict__)
print(wangcai.name1)  #查询
wangcai.job = "student"  # 增加
print(wangcai.__dict__)
del wangcai.name1     #删除
print(wangcai.__dict__)
wangcai.age1 = "12"   #修改
print(wangcai.__dict__)
print(wangcai.level)  #对象操作类中的静态变量(静态字段),只能查,不能增删改
wangcai.level = "中等动物"  #在对象中设置了新的属性,但是没有改变类中的属性
print(wangcai.level)
print(Dog.__dict__)