1.声明⼀个电脑类: 属性:品牌、颜⾊、内存⼤小 方法:打游戏、写代码、看视频

class Pc:
    def __init__(self,brand1,color1,memory1 ):
        self.brand = brand1
        self.color = color1
        self.memory = memory1
    def func(self,n:''):
        print('品牌%s、颜色%s、内存%s、可以用来%s'%(self.brand,self.color,self.memory,n))

pc1 = Pc('华硕','蓝色','8g')
pc1.func('玩游戏')
# print(pc1)
pc2 = Pc('戴尔','黑色','2g')
pc2.func('写代码')
pc3= Pc('联想','黑色','1g')
pc3.func('看视频')
# a.创建电脑类的对象，然后通过对象点的方式获取、修改、添加和删除它的属性
print(pc1.brand)
pc1.brand = '外星人'
pc1.sizes = '14英寸'
print(pc1.brand,pc1.sizes)
# del pc1.sizes
print(pc1.sizes)


# b.通过attr相关⽅方法去获取、修改、添加和删除它的属性
setattr(pc1,'brand','麒麟')
print(pc1.brand)
# delattr(pc2.brand)
print(pc2.brand)
setattr(pc1,'function1','看电影')
print(pc1.function1)

2.声明⼀个人的类和狗的类:

狗的属性:名字、颜⾊色、年年龄

狗的⽅方法:叫唤

人的属性:名字、年年龄、狗

人的⽅方法:遛狗

a.创建⼈人的对象⼩小明，让他拥有⼀一条狗⼤大⻩黄，然后让⼩小明去遛⼤大⻩黄

class Dog:
    def __init__(self,name1,color1,age1):
        self.name = name1
        self.color = color1
        self.age = age1
    def way1(self,n:''):
        pass
dog1 = Dog('大黄','黄色','2')
dog1.way1('叫')
# print(dog1.name)

class Person:
    def __init__(self,name2,age2,dog2):
        self.name = name2
        self.age  = age2
        self.dog  = dog2
    def way2(self,m:''):
        print('%s'%(person1.name),m,'%s'%(person1.dog))


person1 = Person('小明','12',dog1.name)
person1.way2('溜')

3.声明⼀一个圆类，自己确定有哪些属性和方法

class Round:
    def __init__(self,s1,l1):
        self.s = s1
        self.l = l1

    def way2(self,n1,n2,):
        print('%s = %s*%s的平方'%(round1.s,n1,n2))
        print('%s = 2%s%s' % (round1.l, n1, n2))
round1 = Round('S','L')
round1.way2('π','r')

4.创建⼀一个学⽣生类:

属性:姓名，年龄，学号

方法:答到，展示学⽣生信息

class Stu:
    def __init__(self,name1,age1,number1):
        self.name = name1
        self.age  = age1
        self.number = number1
    def answer(self,name2):
        import random
        a = random.randint(0, 1)
        if a:
            print('在下%s信息如下'%(name2))
            print(stu1.__dict__)
        else:
            print('人不在')


stu1 = Stu('小白',12,'001')
stu1.answer(stu1.name)