python 3.x - AttributeError：'用户'对象没有属性'__plusPotion'

Question

我无法弄清楚在战斗中击败敌人后如何添加两种药剂。让我疯狂，我知道这可能很简单。任何帮助表示赞赏。我想要做的就是开始战斗，如果你能够按1来掠夺敌人并在你的库存中增加两种药剂。

这是错误：

Traceback (most recent call last): 
    File "C:/Users/kensai/Desktop/lab3/project/fight.py", line 137, in <module> 
    firstfight() 
    File "C:/Users/kensai/Desktop/lab3/project/fight.py", line 72, in firstfight 
    fight(soldier, player1, name1) 
    File "C:/Users/kensai/Desktop/lab3/project/fight.py", line 100, in fight 
    loot(soldier, player1, name1) 
    File "C:/Users/kensai/Desktop/lab3/project/fight.py", line 59, in loot 
    player1.__plusPotion(number1) 
AttributeError: 'user' object has no attribute '__plusPotion' 

这里是代码：

import sys 
 
import random 
 
import time 
 

 
time.sleep(.002) 
 

 
number = random.randint(0,20) 
 
number1 = 2 
 

 
name1 = input("What would you like your player to be named?") 
 

 
class user: 
 

 
    
 
    def __init__ (self, player_name, player_health, health_potion): 
 

 
     self.__player_health = player_health 
 
     self.__player_name = player_name 
 
     self.__health_potion = health_potion 
 

 
    def getName(self): 
 
     return self.__player_name 
 

 
    def getHealth(self): 
 
     return self.__player_health 
 

 
    def getPotion(self): 
 
     return self.__health_potion 
 

 
    def setHealth(self): 
 
     self.__player_health = 100 
 
     return self.player_health 
 

 
    def minusHealth(self, number): 
 
     self.__player_health -= number 
 
     return self.__player_health 
 
     
 
    def minusPotion(self): 
 
     self.__health_potion -= 1 
 
     return self.__health_potion 
 

 
    def plusPotion(self, number1): 
 
     self.__health_potion += number1 
 
     return self.__health_potion 
 

 
    def plusHealth(self): 
 
     self.__player_health += 20 
 
     return self.__player_health 
 

 
def loot(soldier, player1, name1): 
 
    
 
    player1 = user(name1, player1.getHealth(), player1.getPotion()) 
 
    soldier = user('Soldier', soldier.getHealth(), soldier.getPotion()) 
 
    booty1 = input("Type ' 1 ' to loot the enemy") 
 
    if booty1 == "1": 
 
     print("You find two first-aid kits") 
 
     player1.__plusPotion(number1) 
 

 
     
 
def firstfight(): 
 
    
 
    time.sleep(1) 
 
         
 
    player1 = user(name1, 100, 0) 
 
    soldier = user('Soldier', 80, 0) 
 

 
    print("Your characters stats are: Health:", player1.getHealth()) 
 
    time.sleep(2) 
 
         
 
    fight(soldier, player1, name1) 
 

 
    
 

 
def fight(soldier, player1, name1): 
 
    import random 
 
    import sys 
 
    
 
    player1 = user(name1, player1.getHealth(), player1.getPotion()) 
 
    soldier = user('Soldier', soldier.getHealth(), soldier.getPotion()) 
 
     
 
    p = 0 
 
    while p == 0: 
 
     
 
     attack = input("1 = Attack with weapon, 2 = use potion") 
 
          
 
     if attack == "1": 
 
      number = random.randint(5,20)    
 
      time.sleep(1) 
 
      print("You strike at your enemy. Soldier's health now is", soldier.minusHealth(number)) 
 
      time.sleep(.05) 
 
      number = random.randint(5,20) 
 
      print("Soldier hits you back and your health is now at", player1.minusHealth(number)) 
 
      time.sleep(.003) 
 

 
      if soldier.getHealth() <= 0: 
 

 
       print("You have won the fight!") 
 
       loot(soldier, player1, name1) 
 
       p = 2 
 
       
 
      elif player1.getHealth() <= 0: 
 
       print("You died.") 
 
       time.sleep(2) 
 
       print("\n\n\n\n\n\n\n\n\n\n") 
 
       print("Thanks for playing") 
 
       time.sleep(5) 
 
       print("\n\n\n\n\n\n\n\n\n\n") 
 
       sys.exit(0) 
 
          
 
     elif attack == "2": 
 
          
 
      time.sleep(1) 
 
      
 
      if player1.getPotion() == 0: 
 
       print("You don't have any first-aid kits") 
 
      else: 
 
       print("You use a first aid-kit!") 
 
       
 
       player1.plusHealth(), player1.minusPotion() 
 

 
       print("Your characters stats are: Health:", player1.getHealth(), "Health Potion:", player1.getPotion()) 
 

 
       if player1.getHealth() > 100: 
 
          
 
        player1.setHealth() 
 
        print("Soldier hits you back and your health is now at", player.minusHealth(number)) 
 
          
 
     
 
     else: 
 
      fight(soldier, player1, name1) 
 

 

 

 

 
firstfight()

Answer 1

看产生错误的行：

player1.__plusPotion(number1) 

但是您尝试调用的函数不称为__plusPotion，它被称为plusPotion，不带双下划线。

如果你在蟒蛇双undersocres的含义不明，请参考：

What is the meaning of a single- and a double-underscore before an object name?