代碼如下：import randomsecret = random.randint(1,99)gurss = 0tries = 0print "AHOY! I'm the Dread Pirate Roberts, and I have a secret!"print "It is a number from 1 to 99. I'll give you 6 tries."while guess != secret and tries < 6:    guess = input ("What's yer guess?")    if guess < secret:        print "Two low,ye scurvy dog!"    elif guess > secret:        print "Two high,landubber!"    tries = tries + 1if guess == secret:    print "Avast! Ye got it! Found my secret, ye did!"else:    print "No more guesses! Better luck next time,matey!"    print "The secret number was", secret運(yùn)行錯(cuò)誤提示：Traceback (most recent call last):  File "C:/Users/whisk/Desktop/編程學(xué)習(xí)/list.1-2.py", line 7, in <module>    while guess != secret and tries < 6:NameError: name 'guess' is not defined是根據(jù)書籍《父與子的編程之旅》學(xué)習(xí)的，剛開始，對(duì)照了書上和自己寫的代碼，并沒有拼寫錯(cuò)誤，希望有大神點(diǎn)一下，謝謝。