Python重新游玩时生成不同随机敌人与武器的问题求助

问题出在全局变量的初始化时机：enemy、weapons和items在程序启动时仅被初始化一次，重新游玩时不会重新生成新的随机选项，也不会重置物品列表。

修改方案 #

将全局变量的初始化逻辑移到play_game()函数内部，每次启动新游戏时重新生成随机敌人、武器，并清空物品列表。同时修正物品存储的小问题（原代码用集合存储武器，改为直接存字符串更合理）。

修改后的完整代码 #

import time
import random

def print_pause(message_to_print):
    print(message_to_print)
    time.sleep(1)

def intro(enemy):
    print_pause("You find yourself standing in an open field, "
                "filled with grass and yellow wildflowers.")
    print_pause(f"Rumor has it that a {enemy} is somewhere around here, and "
                "has been terrifying the nearby village.")

def choice(items, enemy, weapons):
    while True:
        choice_input = input("Enter 1 to knock on the door of the house.\n"
                       "Enter 2 to peer into the cave.\n"
                       "What would you like to do?\n"
                       "Please enter 1 or 2.\n")
        if choice_input == '1':
            house(items, enemy, weapons)
        elif choice_input == '2':
            cave(items, enemy, weapons)
        else:
            print("Please enter 1 or 2.\n")

def fight(items, enemy, weapons):
    print_pause(f"The {enemy} attacks you!")
    fight_choice = input("Would you like to (1) fight or (2) run away?\n")
    if fight_choice == '1':
        if weapons in items:
            print_pause(f"As the {enemy} moves to attack, you unsheath "
                        f"your new {weapons}.")
            print_pause(f"The {weapons} of Ogoroth shines brightly in your "
                        "hand as you brace yourself for the attack.")
            print_pause(f"But the {enemy} takes one look at your shiny new "
                        "toy and runs away!")
            print_pause(f"You have rid the town of the {enemy}. "
                        "You are victorious!")
            play_again()
        else:
            print_pause(f"You feel a bit under-prepared for this, "
                        "what with only having a tiny dagger.")
            print_pause(f"You do your best...")
            print_pause(f"but your dagger is no match for the {enemy}.")
            print_pause(f"You have been defeated!")
            print_pause(f"G A M E   O V E R")
            play_again()

    elif fight_choice == '2':
        print_pause("You run back into the field. Luckily, "
                    "you don't seem to have been followed.")
        choice(items, enemy, weapons)

def house(items, enemy, weapons):
    print_pause("You approach the door of the house.")
    print_pause(f"You are about to knock when the door "
                f"opens and out steps a {enemy}.")
    print_pause(f"Eep! This is the {enemy} house!")
    fight(items, enemy, weapons)

def cave(items, enemy, weapons):
    if weapons in items:
        print_pause("You've been here before, and gotten all "
                    "the good stuff. It's just an empty cave now.")
        print_pause("You walk back out to the field.")

    else:
        print_pause(f"You peer cautiously into the cave.")
        print_pause(f"It turns out to be only a very small cave.")
        print_pause(f"Your eye catches a glint of metal behind a rock.")
        print_pause(f"You have found the magical {weapons} of Ogoroth!")
        print_pause(f"You discard your silly old dagger and take "
                    f"the {weapons} with you.")
        print_pause(f"You walk back out to the field.")
        items.append(weapons)
    choice(items, enemy, weapons)

def play_again():
    while True:
        again_choice = input("Play again? [y|n]\n")
        if again_choice == 'y':
            play_game()
        elif again_choice == 'n':
            print('Thanks for playing! Goodbye!')
            exit(0)
        else:
            print("Please enter y or n.")

def play_game():
    # 每次新游戏初始化变量
    items = []
    enemy = random.choice(["Troll", "Pirate", "Gorgon", "Monster"])
    weapons = random.choice(["Bow", "Axe", "Bazooka", "Sword"])
    intro(enemy)
    choice(items, enemy, weapons)

play_game()

关键修改点 #

• 将items、enemy、weapons的初始化移至play_game()函数内，确保每次新游戏都生成新值
• 将这些变量作为参数传递给需要使用它们的函数，避免依赖全局变量，代码更规范
• 修正物品存储逻辑：从items.append({weapons})改为items.append(weapons)，同时判断条件从({weapons}) in items改为weapons in items
• 重命名了部分和函数名冲突的变量（比如choice函数内的输入变量改为choice_input）

内容的提问来源于stack exchange，提问作者Luis Martinez