python学习之老男孩python全栈第九期_day022作业

1. 写一个求正方形周长和面积的类

class Square:
    def __init__(self, length):
        self.length = length
    def area(self):
        return '边长为{}的正方形的面积为：{}'.format(self.length, self.length**2)
    def perimeter(self):
        return '边长为{}的正方形的周长为：{}'.format(self.length, self.length * 4)
z1 = Square(5)
print(z1.area())
print(z1.perimeter())

2. 完成人狗大战

class Dogs:
    def __init__(self,name,HP,aggr,kind):
        self.name = name
        self.HP = HP
        self.aggr = aggr
        self.kind = kind

    # 狗：攻击技能（咬人）
    def bite(self,person):
        # 狗咬人，人掉血
        person.HP -= self.aggr
        if person.HP <= 0:
            print('%s被%s咬死了, 扑街...') % (person.name, self.name)
        else:
            print('%s被%s咬了, 掉了%s滴血, 还剩%s滴血' % (person.name, self.name ,self.aggr,person.HP))

class Person:
    def __init__(self,name,HP,aggr,sex):
        self.name = name
        self.HP = HP
        self.aggr = aggr
        self.sex = sex

    # 人：攻击技能（打）
    def attack(self,dog):
        dog.HP -= self.aggr
        if dog.HP <= 0:
            print('%s被%s打死了, 扑街...' % (dog.name, self.name))
        else:
            print('%s被%s打了, 掉了%s滴血, 还剩%s滴血' % (dog.name, self.name ,self.aggr,dog.HP))


jin = Dogs('二狗', 300, 1, '泰迪')
alex = Person('人', 200, 500, '不详')
jin.bite(alex)              # Dogs.bite(jin,alex)
alex.attack(jin)

3. 默写 面向对象的交互里面的内容