写一个不用第三方库的python游戏

抛硬币游戏

游戏规则：
1. 玩家选择正面或反面；
2. 程序随机抛一次硬币；
3. 如果玩家猜对了，则获胜，否则失败。

代码实现：

import random

# 定义硬币类
class Coin:
    def __init__(self):
        self.side = None
    
    # 抛硬币
    def toss(self):
        self.side = random.choice(['heads', 'tails'])

# 游戏开始
def play_game():
    print('Welcome to the coin toss game!')
    print('Please choose heads or tails.')
    player_choice = input().lower()
    while player_choice not in ['heads', 'tails']:
        print('Please enter a valid choice.')
        player_choice = input().lower()

    coin = Coin()
    coin.toss()
    print(f'The coin landed on {coin.side}.')

    if player_choice == coin.side:
        print('Congratulations! You won!')
    else:
        print('Sorry, you lost.')

# 主程序
if __name__ == '__main__':
    play_game()

运行结果：

Welcome to the coin toss game!
Please choose heads or tails.
heads
The coin landed on tails.
Sorry, you lost.