第二次运行的问题：石头，纸张，剪刀问题-Python

Question

因此，我创建了一个模拟石头，纸，剪刀游戏的代码。当我第一次打开程序时，它可以工作！从一开始就新鲜，它有效。

问题是当第二次运行时。由于某种原因，我的“ while”不再起作用。当任何玩家达到3胜时，while循环都应停止。您可以看到我达到了17胜13胜，而且事情并没有停止……

这仅在程序的首次运行后发生。

代码：

###########function of the random module
import random

###########possible options of play and the number of single wins to win the match
options = ["stone", "paper", "scissors"]
win_the_game = 3

############function that randomly returns one of the 3 options

def machine_play(a):
    return(random.choice(a))

############function that asks your choice: 'stone', 'paper' or 'scissors'

def user_play():
    a = input("Enter your choice: ")
    if a not in options:
            print("Not a valid option, try again ('stone', 'paper', 'scissors')")
    while a not in options:
        a = input("Enter your choice: ")
        if a not in options:
            print("Not a valid option, try again ('stone', 'paper', 'scissors')")
    return a

############function that resolves a combat

def combat(mchoice,uchoice):
    if mchoice == uchoice:
        return 0
    elif uchoice == "stone":
        if mchoice == "scissors":
            return 2
        else:
            return 1
    elif uchoice == "paper":
        if mchoice == "stone":
            return 2
        else:
            return 1
    elif uchoice == "scissors":
        if mchoice == "paper":
            return 2
        else:
            return 1

############variables that accumulate the wins of each participant
machine_wins = 0
user_wins = 0

#######################     The final loop or program     ######################
while machine_wins or user_wins < win_the_game:
    user_choice = user_play()
    machine_choice = random.choice(options)
    print("The machine choice is: ", machine_choice)

    the_game = combat(machine_choice, user_choice)
    if the_game == 1:
        machine_wins += 1
    elif the_game == 2:
        user_wins += 1
    else:
        print("Its a tie!! continue")

    print("\nUser wins: ", user_wins, "\nMachine wins: ", machine_wins) 

Answer 1

while machine_wins or user_wins < win_the_game:

此解析为

while machine_wins or (user_wins < win_the_game):

只要machine_wins是“真实的”（即肯定的），游戏就会永远持续下去。我相信您需要的是

while machine_wins < win_the_game and \
         user_wins < win_the_game: