在石头、布、剪刀中实现while循环

import random

def get_user_choice():
    while True:
        user_choice = input("请输入你的选择（石头、布、剪刀）：").strip().lower()
        if user_choice in ['石头', '布', '剪刀']:
            return user_choice
        else:
            print("无效的选择，请重新输入。")

def get_computer_choice():
    choices = ['石头', '布', '剪刀']
    return random.choice(choices)

def determine_winner(user_choice, computer_choice):
    if user_choice == computer_choice:
        return "平局"
    elif (user_choice == '石头' and computer_choice == '剪刀') or \
         (user_choice == '剪刀' and computer_choice == '布') or \
         (user_choice == '布' and computer_choice == '石头'):
        return "你赢了"
    else:
        return "你输了"

def play_game():
    while True:
        user_choice = get_user_choice()
        computer_choice = get_computer_choice()
        print(f"你选择了：{user_choice}")
        print(f"计算机选择了：{computer_choice}")
        result = determine_winner(user_choice, computer_choice)
        print(result)
        
        play_again = input("你想再玩一次吗？（是/否）：").strip().lower()
        if play_again != '是':
            break

if __name__ == "__main__":
    play_game()