Python子/父类,子类返回字符串两次?

时间:2013-06-10 01:42:41

标签: python string parent-child

简单的问题,对你们中的一个人来说可能非常明显,但我不确定为什么会这样。所以这里是我制作的三个python文件。

主要Char类:

class Character():
    """
    This is the main parents class for creation of
    characters, be they player, NPC or monsters they
    shall all share common traits
    """

    def __init__(self, name, health, defense):
        """Constructor for Character"""
        self.name = name
        self.health = health
        self.defense = defense

玩家类:

from character import *

class Player(Character):
    """
    The player class is where heros are made
    They inherit common traits from the Character class
    """

    def __init__(self, name, health, defense, str, int):
        Character.__init__(self, name, health, defense)
        self.str = str
        self.int = int

初始化:

from Letsago.player import Player


hero = Player("Billy", 200, 10, 10, 2)    
print hero.name

导致:

Billy
Billy

为什么要两次归还?

1 个答案:

答案 0 :(得分:6)

我已将您的示例放在名为test.py的文件中:

class Character():
    """
    This is the main parents class for creation of
    characters, be they player, NPC or monsters they
    shall all share common traits
    """

    def __init__(self, name, health, defense):
        """Constructor for Character"""
        self.name = name
        self.health = health
        self.defense = defense


class Player(Character):
    """
    The player class is where heros are made
    They inherit common traits from the Character class
    """

    def __init__(self, name, health, defense, str, int):
        Character.__init__(self, name, health, defense)
        self.str = str
        self.int = int


hero = Player("Billy", 200, 10, 10, 2)
print hero.name

并执行以下命令(ubuntu 13.04上的python 2.7):

python test.py

并在控制台中获得以下内容

Billy

尝试像我在一个文件中那样隔离示例并执行它(在交互式shell之外)。另请检查您的模块并检查from character import *。确保导入正确的Player