1. import random
    3. # 出拳
    4. punches = ['石头','剪刀','布']
    5. computer_choice = random.choice(punches)
    6. user_choice = ''
    7. user_choice = input('请出拳：（石头、剪刀、布）')  # 请用户输入选择
    8. while user_choice not in punches:  # 当用户输入错误，提示错误，重新输入
    9.     print('输入有误，请重新出拳')
    10.     user_choice = input()
    12. # 亮拳
    13. print('————战斗过程————')
    14. print('电脑出了：%s' % computer_choice)
    15. print('你出了：%s' % user_choice)
    17. # 胜负
    18. print('—————结果—————')
    19. if user_choice == computer_choice:  # 使用if进行条件判断
    20.     print('平局！')
    21. 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'):
    22.     print('你赢了！')
    23. else:
    24.     print('你输了！')