ValueError：以10为底的int（）的无效文字：'stop'

Question

每次我尝试编码时，它都可以工作，但是当我键入代码时'stop'，会出现错误：

ValueError：以10为底的int（）的无效文字：'stop'

def guessingGame():

    global randomNum

    guessTry = 3

    while True:

        guess = input('Guess a Number between 1 - 10, You have 3 Tries, or Enter Stop:  ')

        if int(guess) == randomNum:

            print('Correct')

            break

        if int(guess) < randomNum:

            print('Too Low')

            guessTry = guessTry - 1

            print('You have, ' + str(guessTry) + ' Guesses Left')

        if int(guess) > randomNum:

            print('Too High')

            guessTry = guessTry - 1

            print('You have, ' + str(guessTry) + ' Guesses Left')

        if guessTry == 0:

            print('You have no more tries')

            return

        if str(guess) == 'stop' or str(guess) == 'Stop':

            break

Answer 1

这是一个更加Pythonic（Python 3）的版本。def guessing_game(random_num):&nbsp; &nbsp; tries = 3&nbsp; &nbsp; print("Guess a number between 1 - 10, you have 3 tries, or type 'stop' to quit")&nbsp; &nbsp; while True:&nbsp; &nbsp; &nbsp; &nbsp; guess = input("Your number: ")&nbsp; &nbsp; &nbsp; &nbsp; try:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; guess = int(guess)&nbsp; &nbsp; &nbsp; &nbsp; except (TypeError, ValueError):&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if guess.lower()&nbsp; == 'stop' :&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; else:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; print("Invalid value '%s'" % guess)&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; continue&nbsp; &nbsp; &nbsp; &nbsp; if guess == random_num:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; print('Correct')&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return&nbsp; &nbsp; &nbsp; &nbsp; elif guess < random_num:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; print('Too low')&nbsp; &nbsp; &nbsp; &nbsp; else:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; print('Too high')&nbsp; &nbsp; &nbsp; &nbsp; tries -= 1&nbsp; &nbsp; &nbsp; &nbsp; if tries == 0:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; print('You have no more tries')&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; return&nbsp; &nbsp; &nbsp; &nbsp; print('You have %s guesses left' % tries)

Answer 2

您正在尝试将字符串“ stop”转换为整数。该字符串没有有效的整数表示形式，因此会出现该错误。你应该放if str(guess) == 'stop' or str(guess) == 'Stop':break作为第一张支票另一个建议是在输入上使用小写字母，然后检查小写字母“ stop”。这样，您只需要检查一次，它将捕获“停止”，“停止”，“断点”等。if str(guess).lower() == 'stop':break