Python【类编程】

一.类的初识

   类和过程相对,面向过程和面向对象两种都是编程语言的两方面,Python是一种面向对象的编程语言

分为继承  多态和封装三种部分:

#创建类
class Human(object):
    """  这里是文档注释  """

    type = "人类"   #类变量

    def __init__(self,name,age):   #初始化方法

        self.name = name   #实例化属性(变量)

        self.age = age

    def eat(self):  #普通方法

        print("我饿了我要吃:",self.name)

    def sleep(self):

        print("我要睡觉!")


class China(Human):  #China继承Human类

    def make_Money(self):  #在Human类的基础上添加方法

        print("我要赚钱!")


class SuperMan(Human):   #创建SuperMan类,继承Human

    def __init__(self,name,age,power,rating):  #
        
        #使用super()继承Human类的属性name,age
        super(SuperMan,self).__init__(name,age)

        self.power = power

        self.rating = rating

    def __save(self):

        print("我的名字:",self.name,"年龄:",self.age,"超能力:",self.power,"等级:",self.rating)

    def getSave(self):

        return self.__save()


class Super_China(SuperMan,China):

    def __init__(self,DD,name,age,power,rating):
        super(Super_China,self).__init__(name,age,power,rating)

        self.DD = DD
        
        self.name = name

        self.age = age

        self.power = power

        self,rating = rating

       

    def SC(self):

        print("我是Super_china!")


#实例化Human
human = Human("人类",12)

#实例化China
china = China("张",12)

#实例化SuperMan
superman = SuperMan("迪迦",12,"M87能量","满级")

#实例化Super_China
super_china = Super_China(33,"name",12,"M78","低级")

#调用China方法
china.make_Money()

#调用SuperMan的方法
superman._SuperMan__save()

#调用Super_China方法
super_china.SC()


#使用getsave()
superman.getSave()

print("=======================")

#因为所有都继承Human类,都继承了eat()和sleep()方法
#打印每个类的eat()
def feed(obj):
    obj.eat()

feed(human)
feed(china)
feed(superman)

#继承类的顺序
print(SuperMan.mro())