Question

我正在做一个牛和牛游戏，你应该猜一个四位数的数字。当我运行程序时，计算机一直说0头牛，0头牛，而我不知道为什么或如何解决它

import random
print("Welcome to the cows and bulls game!") 

number = [random.randint(0,9), random.randint(0,9), random.randint(0,9), random.randint(0,9)] counter = 0 teller1 = 0 teller2 = 0

while True : 

    guess = input("Enter a four digit number:")
    bulls= 0
    cows = 0

    if cows == 4:
        print("Congratulations, you have won the game. you only used:", counter, " attempts")
        break

    for i in range(4):
        if guess[teller1] == number[teller2]:
            cows = cows + 1
            teller1 = teller1 + 1
            teller2 = teller2 + 1

    teller1 = 0

    for i in range(4):
        teller2 = teller1 - 1
        for i in range(3):
            if guess[teller1] == number[teller2]:
                bulls = bulls + 1
                teller1 = teller1 + 1

    print(cows," cows, ", bulls," bulls")

    counter = counter + 1

没有错误消息，但它一直说0头牛，0头牛。

Answer 1

您的number变量是int的列表，但是您的guess变量是字符串。因此，当您进行if guess[teller1] == number[teller2]时，就是将整数与字符串进行比较，而这总是错误的。

您可以通过将字符串转换为整数列表来解决此问题：

guess = [int(num) for num in input("Enter a four digit number:")]

请注意，适当的解决方案还会验证用户提供的输入（如果他们输入“ 12345”，“ hello world”？什么都不会发生？）。

持续说0头牛，0头公牛的牛和公牛游戏？

1 个答案: