2018-09-06

1.声明个电脑类: 属性:品牌、颜 、内存 法:打游戏、写代码、看视频

class Computer:
    def __init__(self, brand, color, memory):
        self.brand = brand
        self.color = color
        self.memory = memory
    def playgames(self):
        print('打游戏')
        return
    def write(self):
        print('写代码')
        return
    def look(self):
        print('看视频')
        return
if __name__ == '__main__':
    a1 = Computer('华硕', '黄色', '1t')
    print(a1.playgames())
    print(a1.write())
    print(a1.look())

a.创建电脑类的对象，然后通过对象点的 式获取、修改、添加和删除它的属性 b.通过attr相关 法去获取、修改、添加和删除它的属性

class Computer:
    def __init__(self, brand, color, memory):
        self.brand = '华硕'
        self.color = '黑色'
        self.memory = '1t'
if __name__ == '__main__':
    p1 = Computer('华硕', '黄色', '1t')
    print(p1.brand, p1.memory, p1.color)
    p1.brand = '惠普'
    p1.color = '白色'
    p1.memory = '2t'
    print(p1.brand, p1.memory, p1.color)
    p1.master = '吕耐芯'
    print(p1.brand, p1.memory, p1.color, p1.master)
    del p1.master
    print(p1.brand, p1.memory, p1.color)
    print(getattr(p1, 'brand'))
    print(getattr(p1, 'color', '灰色'))
    setattr(p1, 'weight', '120g')
    print(p1.weight)
    print(delattr(p1, 'color'))

2.声明 个 的类和狗的类:狗的属性:名字、颜 、 龄 狗的 法:叫唤 的属性:名字、 龄、狗 的 法:遛狗 a.创建 的对象 明，让他拥有 条狗 ，然后让 明去遛

class People:
    def __init__(self, name, age):
        self.name = name
        self.age = age
    def methods(self):
        print('遛狗')
        return
class Dog:
    def __init__(self, name, color, age):
        self.name2 = name
        self.color2 = color
        self.age2 = age
    def methonds2(self):
        print('汪汪汪')
        return
if __name__ == '__main__':
    m = People('小明','10')
    m.methods()
    print(m.methods())
    n = Dog('1岁', '黄色', '大黄狗')
    n.methonds2()
    print(n.methonds2())

3.声明 个矩形类:属性: 、宽 法:计算周 和 积 a.创建 同的矩形，并且打印其周 和 积

class Ju:
    def __init__(self, long, width):
        self.long = long
        self.width = width
    def actions(self):
        return (self.width+self.long)*2 , self.width * self.long
if __name__ == '__main__':
    s = Ju(3,4)
    print(s.actions())

4.创建 个学 类:属性:姓名， 龄，学号 法:答到，展示学 信息 创建 个班级类: 属性:学 ，班级名 法:添加学 ，删除学 ，点名

class literature:
    def __init__(self, name, age, number):
        self.name = name
        self.age = age
        self.number = number

    def displays(self):
        return s
class Class1:
    def __init__(self, class_name):
        self.stu = []
        self.class_name =class_name
    def add(self,student):
        self.stu.append(student)
    def dels(self,student):
        if self.stu:
            self.stu.remove(student)
    def dian(self,student):
        for student in self.stu:
            print(student.name)

if __name__ == '__main__':
    s = literature('吕耐芯', '22', '20152102514')
    print(s.name, s.age, s.number)
    s = Class1('吕耐芯', 'python1806')

    s.name = '冉钊'
    print(s.name)
    del s.name
if __name__ == '__main__':
    a0 = student1 = '张三'
    a1 = student2 = '李四'
    x = Class1('1806')
    x.stu = [a0, a1]
    print(a0, a1)
    x.add(literature('王五','20', '1806'))
    x.dels(a0)