面向对象-练习1

通过类数据属性统计实例化次数

class Student:
    school='luffcity'
    count=0
    def __init__(self,name,age,sex):
        self.name=name
        self.age=age
        self.sex=sex
        Student.count+=1
    def learn(self):
        print("% is learing" % self.name)

stu1=Student('Alex','male',38)
print(stu1.count)
stu2=Student('Agon','male',88)
print(stu2.count)

对象之间的交互

# 模仿LOL定义两个英雄
class Garen:
    camp='Demacia'
    def __init__(self,nickname,life_value,aggresivity):
        self.nickname=nickname
        self.life_value=life_value
        self.aggersivity=aggresivity
    def attack(selfs,enemy):
        enemy.life_value -= selfs.aggersivity
class Riven:
    camp='Noxus'
    def __init__(self,nickname,life_value,aggresivity):
        self.nickname=nickname
        self.life_value=life_value
        self.aggersivity=aggresivity
    def attack(selfs,enemy):
        enemy.life_value -= selfs.aggersivity
g1=Garen('草丛伦',100,30)
g2=Riven('锐雯雯',80,50)
g1.attack(g2)
print(g1.life_value)
print(g2.life_value)