# 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
#
# 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
# b.通过attr相关方法去获取、修改、添加和删除它的属性
#


class Computer:
    def __init__(self, brand='Mac', color='silver', rom=8):
        self.brand = brand
        self.color = color
        self.rom = rom

    def play_computer_game(self):
        print('打游戏')

    def codeing(self):
        print('写代码')

    def watching(self):
        print('看视频')


c1 = Computer('戴尔', 'black', 8)
# c1.play_computer_game()

print(c1.brand)

c1.color = 'red'

c1.price = 4000

del c1.rom

print(c1.__dict__)

print(getattr(c1, 'brand', '没有该品牌'))

setattr(c1, 'color', 'white')

setattr(c1, 'size', 'small')

delattr(c1, 'price')

print(c1.__dict__)
# 2.声明一个人的类和狗的类:
# 狗的属性:名字、颜色、年龄
# 狗的 法:叫唤
# 人的属性:名字、 年龄、狗
# 人的方法:遛狗
# a.创建人的对象名字叫小明，让他拥有一条狗  ，然后让小明去遛狗
#


class Dog:
    def __init__(self, name='曾怀圣', color='神秘紫', age=22):
        self.name = name
        self.color = color
        self.age = age

    def call_out(self):
        print('叫唤')


d1 = Dog()


class Person:
    def __init__(self, name='胡建军', age=22, dog=''):
        self.name = name
        self.age = age
        self.dog = dog

    def walk_the_dog(self):
        print('遛狗')
        self.dog.call_out()


p1 = Person('小明', 21, d1)

p1.walk_the_dog()
# 3.声明一个矩形类:
# 属性: 长、宽
# 方法:计算周长和面积
# a.创建不同的矩形，并且打印其周长和面积
#


class Rectangle:
    def __init__(self, height: (int, float), width: (int,float)):
        self.height = height
        self.width = width

    def area(self):
        area = self.height*self.width
        return area


r1 = Rectangle(2, 3)
r2 = Rectangle(22.1, 13)
print(r1.area(), r2.area())

# 4.创建一个学生类:
# 属性:姓名，年龄，学号，成绩
# 方法:答到，展示学生信息
# 创建一个班级类: 属性:学生，班级名
# 方法:添加学生，删除学生，点名, 获取班级中所有学生的平均值， 获取班级中成绩最好的学生


class Student:
    def __init__(self, name, age, stu_id, **score):
        self.name = name
        self.age = age
        self.stu_id = stu_id
        self.score = score

    def speak(self):
        print('%s到！' % self.name)

    def show(self):
        print('姓名:%s 年龄:%s 学号:%s 成绩:%s' % (self.name, self.age, self.stu_id, self.score))


class BanJi:
    def __init__(self, name, student={}):
        self.name = name
        self.student = student

    def stu_add(self, stu_name, student):
        self.student[stu_name] = student

    def show_stu(self):

        for stu in self.student:
            print(self.student[stu].__dict__)

    def delete_stu(self, stu_name):
        del self.student[stu_name]

    def talk(self, stu):
        stu.speak()

    def max_stu(self, subject):
        max_score = 0
        stu = ''
        for x in self.student:
            if max_score < self.student[x].score[subject]:
                max_score = self.student[x].score[subject]
                stu = x
        return max_score, x

    def average(self, subject):
        all_score = 0
        average_score = 0
        num = 0
        for x in self.student:
            all_score += self.student[x].score[subject]
            num += 1
        average_score = all_score/num
        return average_score

stu1 = Student('徐畅', 21, 101, math=90)
stu2 = Student('胡建军', 22, 102, math=69)
stu3 = Student('曾怀圣', 22, 103, math=59)

cl1 = BanJi('幼稚园')
cl1.stu_add('胡建军', stu2)
cl1.stu_add('曾怀圣', stu3)
cl1.stu_add('徐畅', stu1)

print(cl1.max_stu('math'), cl1.average('math'))

cl1.show_stu()

stu1.show()

stu1.speak()