Python猜密码小游戏While循环持续运行问题求助

核心问题分析 #

你的while循环条件用了or，导致逻辑恒成立：

while user_decision != 'play' or user_decision != 'rules':

任何输入不可能同时等于play和rules，所以这个条件永远为True，循环会无限运行。

修复后的完整代码 #

import random, time

user = input("Enter your name: ")
bet_coins = 7000

# 秘密密码（转为字符串列表方便对比）
secret_code = ['12', '1', '7', '4']
print("Welcome to the safe game, " + user[0].upper() + user[1::] + ".")
time.sleep(2)
print("Your goal here is to guess the safe key.")
time.sleep(2)
print("Here's how you start:")
time.sleep(2)

def check_score(user_guess):
    # 将用户输入分割为列表
    user_guess_fixed = user_guess.split()
    # 检查输入是否符合4位格式
    if len(user_guess_fixed) != 4:
        print("Invalid format! Please enter 4 numbers separated by spaces, e.g '1 2 3 4'")
        return
    
    # 对比密码，计算正确位数
    correct_count = 0
    for secret, guess in zip(secret_code, user_guess_fixed):
        if secret == guess:
            correct_count += 1
    print(f"You got {correct_count} out of 4 digits right!")
    
    # 判断是否猜对全部密码
    if correct_count == 4:
        print("Congratulations! You opened the safe!")
        return True
    return False

# 主循环：处理用户选择
while True:
    user_decision = input("To play send *play*, for rules send *rules*, to quit send *quit*\n").lower()
    time.sleep(2)
    
    if user_decision == 'play':
        print("HERE WE GO! Guess the code!")
        print("(Remember, 4 blocks, each one is a number between 1-20, e.g '1 2 3 4')")
        # 游戏循环：直到猜对密码
        while True:
            user_guess = input("Enter your guess: ")
            if check_score(user_guess):
                break  # 猜对后退出游戏循环
            print("Try again!")
            time.sleep(1)
    elif user_decision == 'rules':
        print("Game Rules:")
        print("- You need to guess a 4-digit code, each digit is between 1-20")
        print("- Each guess will tell you how many digits you got right")
        print("- Keep guessing until you get all 4 digits correct!")
        time.sleep(3)
    elif user_decision == 'quit':
        print(f"Thanks for playing, {user}! See you next time!")
        break
    else:
        print("Oops, invalid entry. Please enter 'play', 'rules', or 'quit'.")
        time.sleep(2)

关键修改点 #

1. 修复循环逻辑：

   • 改用无限循环while True，通过quit选项主动终止程序，流程更合理
   • 移除原错误的or条件，改为明确判断输入是否为有效选项

2. 优化函数设计：

   • 函数重命名为check_score（符合Python命名规范）
   • 把user_guess作为参数传入，避免依赖全局变量
   • 添加输入格式校验，确保用户输入符合要求
   • 完善密码对比逻辑，返回是否猜对的结果来控制游戏循环

3. 完善游戏体验：

   • 新增quit选项，支持主动退出
   • 补充规则说明内容
   • 猜对密码后自动退出游戏环节，回到主选择界面

内容的提问来源于stack exchange，提问作者Shahar