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import random


print('欢迎来到猜拳游戏')
num = 0
win_num = 0
lose_num = 0
while True:
    if lose_num == 2 or win_num == 2:
        break
    user = int(input('出剪刀打1，出石头打2，出布打3'))
    if user > 3 and user < 1:
        print('不要输入其他数字')
    else:
        AI = random.randint(1,3)
        if (AI == 1 and user == 2) or (AI == 2 and user == 3) or (AI == 3 and user == 1):
            print('你赢了')
            win_num += 1
            num += 1
        elif AI == user:
            print('平局了')
            num += 1
            continue
        elif (AI == 1 and user == 3) or (AI == 2 and user == 1) or (AI == 3 and user == 2):
            print('你输了')
            lose_num += 1
            num += 1
        else:
            if num == 3:
                break
            
if num == 3 and win_num != 2 and lose_num != 2:
    print('游戏结束，没有赢家！')
if win_num == 2:
    print('恭喜你，你赢了！')
if lose_num == 2:
    print('你输了，再接再厉！')

做这个作品主要是觉得学python不能光学不练，然后接做了个这个作品

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基本输入与输出√

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break、continue、pass语句√