1.什么是对象？什么是类？

对象是特征与技能的结合体，类是一系列对象相同的特征与技能的结合体。

2.绑定方法的有什么特点

对象的绑定方法,是由对象来调用的  
特殊之处就是把对象当作第一个参数传入该方法中

3.基于面向对象设计一个对战游戏

# 仿制英雄联盟英雄角色
class Riven:
    camp = 'Noxus'
    def __init__(self,nickname,aggressivity=54,
                 life_value=414,money=1001,
                 armor=3):
        self.nickname = nickname
        self.aggressivity = aggressivity
        self.life_value = life_value
        self.money = money
        self.armor = armor
    def attack(self,enemy):
        damage_value = self.aggressivity-enemy.armor
        enemy.life_value-=damage_value


class Garen:
    camp = 'Demacia'
    def __init__(self,nickname,aggressivity=58,
                 life_value = 455,
                 money = 100,
                 armor = 10):
        self.nickname = nickname
        self.aggressivity = aggressivity
        self.life_value = life_value
        self.money = money
        self.armor = armor
    def attack(self,enemy):
        damage_value=self.aggressivity-enemy.armor
        enemy.life_value-=damage_value

class BlackClaver:
    def __init__(self,price =475,aggrev=9,life_value=100):
        self.price = price
        self.aggrev = aggrev
        self.life_value = life_value
    def update(self,obj):
        obj.money -= self.price
        obj.aggressivity+=self.aggrev
        obj.life_value +=self.life_value
    def fire(self,obj):
        obj.life_value-=1000

r1 = Riven('草丛伦')
g1 = Garen('盖文')
b1 = BlackClaver()

print(f'草丛伦攻击值：{r1.aggressivity},草丛伦生命值：{r1.life_value},草丛伦金币：{r1.money}')
if r1.money>b1.price:
    r1.b1=b1
    b1.update(r1)
    print('草丛伦装备购买成功')

print(f'草丛伦攻击值：{r1.aggressivity},草丛伦生命值：{r1.life_value},草丛伦金币：{r1.money}')


print(f'盖文初始生命值:{g1.life_value}')
r1.attack(g1)
print(f'盖文受到普攻伤害，生命值:{g1.life_value}')
r1.b1.fire(g1)
print(f'盖文受到装备伤害，生命值:{g1.life_value}')