builtins.AttributeError： '海峽' 對象有沒有屬性 '名'

Question

文件1：

class Rogue(): 
    def __init__(self): 
     self.name = "Rogue" 
     Hero.__init__(self.name, None) 

'''class Barbarian(Hero): 
    Hero.__init__(self, name, bonuses) 

class Mage(Hero): 
    Hero.__init__(self, "Mage", bonuses)''' 


class Hero(Tile): 
'''A class representing the hero venturing into the dungeon. 
Heroes have the following attributes: a name, a list of items, 
hit points, strength, gold, and a viewing radius. Heroes 
inherit the visible boolean from Tile.''' 

def __init__(self, name, bonuses=(0, 0, 0)): 
    '''(Hero, str, list) -> NoneType 
    Create a new hero with name name, 
    an empty list of items and bonuses to 
    hp, strength, gold and radius as specified 
    in bonuses''' 

    self.name = name 
    self.items = [] 
    #Rogue 
    if self.name == "Rogue": 
     self.hp = 10 + bonuses[0] 
     self.strength = 2 + bonuses[1] 
     self.radius = 2 + bonuses[2] 
    #Barbarian 
    elif self.name == "Barbarian": 
     self.hp = 12 + bonuses[0] 
     self.strength = 3 + bonuses[1] 
     self.radius = 1 + bonuses[2] 
    #Mage 
    elif self.name == "Mage": 
     self.hp = 8 + bonuses[0] 
     self.strength = 2 + bonuses[1] 
     self.radius = 3 + bonuses[2] 

    Tile.__init__(self, True) 

---

文件2：

class GameScreen: 
    '''Display the current state of a game in a text-based format. 
    This class is fully implemented and needs no 
    additional work from students.''' 

def initialize_game(self): 
    '''(GameScreen) -> NoneType 
    Initialize new game with new user-selected hero class 
    and starting room files.''' 

    hero = None 
    while hero is None: 
     c = input("Select hero type:\n(R)ogue (M)age (B)arbarian\n") 
     c = c.lower() 
     if c == 'r': 
      hero = Rogue() 
     elif c == 'm': 
      hero = Mage() 
     elif c == 'b': 
      hero = Barbarian() 

    self.game = Game("rooms/startroom", hero) 

有多種不同的文件，但這些都是隻有重要的部分。上面的代碼要求輸入，然後根據輸入調用英雄課程。這個類是我必須創建的部分。我創建了一個Rogue類，我用特定的參數調用Hero。我收到以下錯誤：

File "/Users/Borna/Documents/CSC148/Assignment 2/hero.py", line 7, in __init__ 
Hero.__init__(self.name, None) 
    File "/Users/Borna/Documents/CSC148/Assignment 2/hero.py", line 30, in __init__ 
self.name = name 
builtins.AttributeError: 'str' object has no attribute 'name' 

我不更改字符串，我只是檢查它是否存在。爲什麼它告訴我該字符串沒有屬性名稱作爲簡單的'self.name'構造函數？

Answer 1

當你做

Hero.__init__(self.name, None) 

正在發生的事情是，「自我'參數不作爲第一個參數隱式傳遞。所以在這種情況下，你實際上傳遞一個字符串（self.name）作爲第一個參數（而不是self）和None而不是'name'參數。如果「獎金」是不是關鍵字參數，這個調用會產生TypeError: __init__() takes exactly 3 arguments (2 given)

所以： self.name代表自我 無代表名稱 和獎金被初始化爲它的默認（0，0，0）

Answer 2

Hero.__init__初始化一個Hero對象。要構建新的英雄對象，您必須致電Hero。因此，在Rogue.__init__中，該行

Hero.__init__(self.name, None) 

有問題。要麼你想創建一個新的英雄對象：

class Rogue: 
    def __init__(self): 
     self.name = "Rogue" 
     self.enemy = Hero(self.name, None) 

還是讓Rogue是Hero一個子類：

class Rogue(Hero): 
    def __init__(self): 
     super().__init__("Rogue", None)