python - Python 代码中石头、剪刀、布的问题

Question

我正在使用python编写代码，我们被要求使用外部选项文件(石头、剪刀、布)创建一个石头、剪刀、布的游戏，如下所示:反对让代码使用任何用户输入。但是，由于某种原因，我的代码不起作用。当有人输入"is"时，它会打印“让我们现在玩吧”，但仅此而已。没有其他事情发生。

当用户提供"is"作为输入时，为什么游戏没有完成？

from random import randrange
def sample():
    computer_input = randrange(1,3)
    return computer_input

def main():
    a = [] 
    infile = open("input2.txt", "r")
    for line in infile:
        a.append(line)
    computer_input = sample()

    tied = 0 #games tied
    user_won = 0 #games won by user
    comp_won = 0 #games won by computer

    user_input = ""
    computer_input = ""

    print("Rules of the game...")
    print("Would you like to turn up with a game of rock, paper, or scissors? ;) Yes or no? -->")
    answer = input()
    if (answer == "yes"):
        play = True
        print("Let us now play.")

##    elif(answer == "no" or "No"):
##        play = False
##        print("Sorry. Maybe we can play next time ;)")
##    else:
##        play = False
##        print("Please try again!")
##        main()

    while True:
        if(computer_input == "1"):
            if(user_input == a[0]):
                tied = tied + 1 
                print("Game is tied!")        
            elif(user_input == a[1]):
                user_won = user_won + 1
                print("You won! Paper covers Rock")        
            elif(user_input == a[2]):
                comp_won = comp_won + 1
                print("You lost! Rocks knocks out scissors")       
##            else:
##                print("Try again!")    
        elif (computer_input == "2"):
            if (user_input == a[0]):
                comp_won = comp_won + 1
                print("You lost! Paper covers Rock")
            elif(user_input == a[1]):
                tied = tied + 1 
                print("Game is tied!")
            elif(user_input == a[2]):
                user_won = user_won + 1
                print("You won! Scissors cuts Paper")
##            else:
##                print("Try again!")       
        else :
            if(user_input == a[0]):
                user_won = user_won + 1
                print("You won! Rock knocks out scissors")
            elif(user_input == a[1]):
                comp_won = comp_won + 1
                print("You lost! Scissors cuts Paper")
            elif(user_input == a[2]):
                tied = tied + 1 
                print("Game is tied!")
##            else:
##                print("Try again!")
##                


##print("Game over")
##print("Statistics")
##print("Games tied -->", tied)
##print("Game won by comp -->", comp_won)
##print("Game won by user -->", user_won)
##        

main()

Answer 1

请注意，在下面的第 5 行，您将 computer_input 设置为 sample() 的结果:

def main():
    a = [] 
    infile = open("input2.txt", "r")
    for line in infile:
        a.append(line)
    computer_input = sample()

但是几行之后，您将其设置为 "":

    user_input = ""
    computer_input = ""

您的 while 循环正在检查 computer_input 的值，但它假设它将是一个数字。它没有处理空字符串的情况。我建议删除该行。

另请注意，您的 while 循环正在检查 user_input 的值，但您似乎从未真正将输入读取到该变量中。