17 类的名称空间 查询顺序 组合

class Person:
    animal = ‘高级动物‘
    def __init__(self, country, name, sex):
        self.country = country
        self.name = name
        self.sex = sex
    def eat(self):
        print(‘%s吃饭‘ % self.name)
    def work(self):
        print(‘工作‘)
Person.__dict__[‘work‘](11)    #可以通过函数对应的地址+()调用改函数.
p1 = Person(‘china‘,‘alex‘,‘nan‘)
print(p1.__dict__)
print(p1.animal)           #对象.属性 : 先从对象空间找,如果找不到,再从类空间找,再找不到,再从父类找....
print(Person.animal)       #类名:属性:  先从本类空间找,如果找不到,再从父类找....
# 对象与对象之间是互相独立的.
p1.animal = ‘低级‘        #不能改变类中的变量,只能查询,试图改变,只能往对象里添加属性.
print(p1.__dict__)        #{‘country‘: ‘china‘, ‘name‘: ‘alex‘, ‘sex‘: ‘nan‘, ‘age‘: ‘23‘, ‘hight‘: 175, ‘animal‘: ‘低级‘}
print(Person.__dict__)    #{‘__module__‘: ‘__main__‘, ‘animal‘: ‘高级动物‘,

class Count:
    count = 0
    def __init__(self):
        Count.count = Count.count + 1
p1 = Count()
p1 = Count()
p1 = Count()
print(Count.count)

# 通过类名.变量,可以改变变量的值
Count.count = 6
print(Count.count)
# 通过对象,不能改变,只能引用

#滕攀用三板斧打了候,候掉了多少血,还剩多少血.
class Game_role:
    def __init__(self,name,ad,hp):
        self.name = name
        self.ad = ad
        self.hp = hp
    def attack(self):
        pass
    def armament_weapon(self,wea):
        self.wea = wea
class Weapon:
    def __init__(self,name,ad):
        self.name = name
        self.ad = ad
    def fight(self,p1,p2):
        p2.hp = p2.hp - self.ad
        print(‘%s用%s打了%s,%s掉了%s血,还剩%s血‘ % (p1.name,self.name,p2.name,p2.name,self.ad,p2.hp))
p1 = Game_role(‘滕攀‘,20,200)
p2 = Game_role(‘候‘,10,50)
aa = Weapon(‘三板斧‘,88)
tt = Weapon(‘宝刀‘,666)
# aa.fight(p1,p2)    #代码不合理,人物是利用武器攻击别人呢,你的动作发起者是人,而不是武器.
# print(p2.hp)
p1.armament_weapon(aa)   #给滕攀装了三板斧这个对象.
p1.wea.fight(p1,p2)