python - 如何在Python中修复 “TypeError”？

Question

我是几天前刚开始学习Python的新手，我尝试制作一个简单的RPG代码，但最近遇到了麻烦，它不断让我返回TypeError:generate_damage()缺少1个必需的位置参数:'自'。有人知道发生了什么吗？

Main.py

from Classes.game import player, bcolors

magic = [{"name": "Tackle", "cost": 1, "dmg": 4},
         {"name": "Ember", "cost": 3, "dmg": 6},
         {"name": "Leech", "cost": 4, "hp": +5, "dmg": 4},
         {"name": "Explosion", "cost": 5, "hp": -10, "dmg": 30}]

player(100, 20, 5, 10,magic)

print(player.generate_damage())

Game.py

import random 

class bcolors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'
    BOLD = '\033[1m'
    UNDERLINE = '\033[4m'

class player:
    def __init__(self, hp, mp, atk, df, mag):
        self.maxhp = hp
        self.hp = hp
        self.maxmp = mp
        self.mp = mp
        self.atkw = atk - 10
        self.atks = atk + 10
        self.df = df
        self.mag = mag
        self.actions = ["Attack", "Magic"]

    def generate_damage(self):
        return random.randrange(self.atkw, self.atks)

我在以下方面遇到问题:

print(player.generate_damage())

由于它不断返回TypeError:generate_damage()缺少1个必需的位置参数:“self”

Answer 1

您必须实例化一个类，才能使用它的类方法

magic = [{"name": "Tackle", "cost": 1, "dmg": 4},
         {"name": "Ember", "cost": 3, "dmg": 6},
         {"name": "Leech", "cost": 4, "hp": +5, "dmg": 4},
         {"name": "Explosion", "cost": 5, "hp": -10, "dmg": 30}]

p = player(100, 20, 5, 10,magic)

print(p.generate_damage())