第一章 面向对象编程

面向对象语法

 

attack_vals = {
    "京巴":30,
    "藏獒":80
}
def dog(name,d_type):   # 模板
    data ={"name":name,
           "d_type":d_type,
           # "attack_val":30,
            "life_val":100
    }
    if d_type in attack_vals:
        data["attack_val"] = attack_vals[d_type]
    else:
        data["attack_val"] = 15
    return data

def person(name,age):
    data = {"name":name,
            "age":age,
            "life_val":100
            }
    if age>18:
        data["attack_val"] =50
    else:
        data["attack_val"] =30
    return data

def dog_bite(dog_obj,person_obj):
    person_obj["life_val"] -= dog_obj["attack_val"]  # 执行咬人动作
    print("狗[%s]咬了人[%s]一口，人掉血[%s],还有血量[%s]..."%(dog_obj['name'],
                                                person_obj['name'],
                                                dog_obj["attack_val"],
                                                person_obj["life_val"]))
def beat(person_obj,dog_obj):
    dog_obj["life_val"] -= person_obj["attack_val"]
    print("人[%s]打了狗[%s]一棒,狗掉血[%s],还有血量[%s]..."%(person_obj["name"],
                                    dog_obj["name"],
                                    person_obj["attack_val"],
                                    dog_obj["life_val"]))
d1 = dog("mjj","京巴") # 实体
d2 = dog("mjj2","藏獒")
p1 = person("alex",22)
dog_bite(d1,p1)
beat(p1,d1)
dog_bite(p1,d2)
print(d1,d2)
print(p1)

人是不应该调用狗的功能的，如何在代码级别实现这个限制呢？