Python高级（5）老王开枪

class Person(object):
    """人的类"""
    def __init__(self, name):
        super(Person, self).__init__()
        self.name = name
        self.gun = None#用来保存枪对象的引用
        self.hp = 100

    def anzhuang_zidan(self, dan_jia_temp, zi_dan_temp):
        """把子弹装到弹夹中"""
        #弹夹.保存子弹(子弹)
        dan_jia_temp.baocun_zidan(zi_dan_temp)

    def anzhuang_danjia(self, gun_temp, dan_jia_temp):
        """把弹夹安装到枪中"""
        #枪.保存弹夹(弹夹)
        gun_temp.baocun_danjia(dan_jia_temp)

    def naqiang(self, gun_temp):
        """拿起一把枪"""
        self.gun = gun_temp

    def __str__(self):
        if self.gun:
            return "%s的血量为:%d, 他有枪 %s"%(self.name, self.hp, self.gun)
        else:
            if self.hp>0:
                return "%s的血量为%d, 他没有枪"%(self.name, self.hp)
            else:
                return "%s 已挂...."%self.name

    def kou_ban_ji(self, diren):
        """让枪发射子弹去打敌人"""
        #枪.开火(敌人)
        self.gun.fire(diren)

    def xiao_xue(self, sha_shang_li):
        """根据杀伤力，掉相应的血量"""
        self.hp -= sha_shang_li

class Gun(object):
    """枪类"""
    def __init__(self, name):
        super(Gun, self).__init__()
        self.name = name#用来记录枪的类型
        self.danjia = None#用来记录弹夹对象的引用

    def baocun_danjia(self, dan_jia_temp):
        """用一个属性来保存这个弹夹对象的引用"""
        self.danjia = dan_jia_temp

    def __str__(self):
        if self.danjia:
            return "枪的信息为:%s, %s"%(self.name, self.danjia)
        else:
            return "枪的信息为:%s,这把枪中没有弹夹"%(self.name)

    def fire(self, diren):
        """枪从弹夹中获取一发子弹，然后让这发子弹去击中敌人"""
        #先从弹夹中取子弹
        #弹夹.弹出一发子弹()
        zidan_temp = self.danjia.tanchu_zidan()

        #让这个子弹去伤害敌人
        if zidan_temp:
            #子弹.打中敌人(敌人)
            zidan_temp.dazhong(diren)
        else:
            print("弹夹中没有子弹了。。。。")

class Danjia(object):
    """弹夹类"""
    def __init__(self, max_num):
        super(Danjia, self).__init__()
        self.max_num = max_num#用来记录弹夹的最大容量
        self.zidan_list = []#用来记录所有的子弹的引用

    def baocun_zidan(self, zi_dan_temp):
        """将这颗子弹保存"""
        self.zidan_list.append(zi_dan_temp)

    def __str__(self):
        return "弹夹的信息为:%d/%d"%(len(self.zidan_list), self.max_num)

    def tanchu_zidan(self):
        """弹出最上面的那颗子弹"""
        if self.zidan_list:
            return self.zidan_list.pop()
        else:
            return None

class Zidan(object):
    """子弹类"""
    def __init__(self, sha_shang_li):
        super(Zidan, self).__init__()
        self.sha_shang_li = sha_shang_li#这颗子弹的威力

    def dazhong(self, diren):
        """让敌人掉血"""

        #敌人.掉血(一颗子弹的威力)
        diren.xiao_xue(self.sha_shang_li)
        
def main():
    """用来控制整个程序的流程"""

    #1. 创建老王对象
    laowang = Person("老王")
    #2. 创建一个枪对象
    ak47 = Gun("AK47")
    #3. 创建一个弹夹对象
    dan_jia = Danjia(20)
    #4. 创建一些子弹
    for i in range(15):
        zi_dan = Zidan(10)

        #5. 老王把子弹安装到弹夹中
        #老王.安装子弹到弹夹中(弹夹，子弹)
        laowang.anzhuang_zidan(dan_jia, zi_dan)

    #6. 老王把弹夹安装到枪中
    #老王.安装弹夹到枪中(枪，弹夹)
    laowang.anzhuang_danjia(ak47, dan_jia)

    #test:测试弹夹的信息
    #print(dan_jia)

    #test:测试枪的信息
    #print(ak47)

    #7. 老王拿枪
    #老王.拿枪(枪)
    laowang.naqiang(ak47)

    #test:测试老王对象
    print(laowang)

    #8. 创建一个敌人
    gebi_laosong = Person("隔壁老宋")
    print(gebi_laosong)

    #9. 老王开枪打敌人
    #老王.扣扳机(隔壁老宋)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)

    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)
    laowang.kou_ban_ji(gebi_laosong)
    print(gebi_laosong)
    print(laowang)

if __name__ == '__main__':
    main()

总结

类变量的传递，类变量的更改，