python对象的属性引用另一个类的

class GameRole:    def __init__(self, name, ad, hp):        self.name = name        self.ad = ad        self.hp = hp    def attack(self, p):        p.hp = p.hp - self.ad        if p.hp > 0:            print("%s攻击%s，%s掉了%s点血，还剩%s点血"                  % (self.name, p.name, p.name, self.ad, p.hp))        else:            print(p.name + "死亡")    def arm_weapon(self, wea):        self.wea = weaclass Weapon:    def __init__(self, name, ad):        self.name = name        self.ad = ad    def fight(self, p1, p2):        p2.hp = p2.hp - self.ad        if p2.hp > 0 and p1.hp > 0:            print("%s用%s打了%s,%s掉了%s点血，还剩下%s点血"                  % (p1.name, self.name, p2.name, p2.name, self.ad, p2.hp))        else:            p2.hp = 0            # print(p2.name + "死亡,游戏结束")p1 = GameRole("盖伦", 20, 500)p2 = GameRole("亚索", 50, 400)axe = Weapon("斧头", 60)sward = Weapon("屠龙宝刀", 100)p1.arm_weapon(axe)p2.arm_weapon(sward)count = 0while 1:  # 你们开始打吧，哈哈，管我毛事    print("第%s回合" % (count + 1))    if p1.hp > 0:        p1.wea.fight(p1, p2)    if p2.hp > 0:        p2.wea.fight(p2, p1)    if p1.hp <= 0:        print("%s用%s把%s打死了，%s获胜，游戏结束，让我们恭喜%s！"              % (p2.name, p2.wea.name, p1.name, p2.name, p2.name))        break    if p2.hp <= 0:        print("%s用%s把%s打死了，%s获胜，游戏结束，让我们恭喜%s！"              % (p1.name, p1.wea.name, p2.name, p1.name, p1.name))        break    count += 1