Question

想象一下，用户输入了（编辑）字母'f'。然后弹出以下错误。

wrdsplit = list('ferret')
guess = input('> ')
#  user inputs `f`
print(wrdsplit.index(guess))

但这导致ValueError: 'f' is not in list。

Answer 1

OMG .......非常感谢你们的帮助。我终于修好了。在这里......玩我的Hangman游戏玩得很开心：

import random
import time
import collections

def pics():
    if count == 0:
        print (" _________     ")
        print ("|         |    ")
        print ("|         0    ")
        print ("|        /|\  ")
        print ("|        / \  ")
        print ("|              ")
        print ("|              ")
    elif count == 1:
        print (" _________     ")
        print ("|         |    ")
        print ("|         0    ")
        print ("|        /|\  ")
        print ("|        /   ")
        print ("|              ")
        print ("|              ")
    elif count == 2:
        print (" _________     ")
        print ("|         |    ")
        print ("|         0    ")
        print ("|        /|\  ")
        print ("| ")
        print ("|              ")
        print ("|              ")
    elif count == 3:
        print (" _________     ")
        print ("|         |    ")
        print ("|         0    ")
        print ("|        /|  ")
        print ("| ")
        print ("|              ")
        print ("|              ")
    elif count == 4:
        print (" _________     ")
        print ("|         |    ")
        print ("|         0    ")
        print ("|         |  ")
        print ("| ")
        print ("|              ")
        print ("|              ")
    elif count == 5:
        print (" _________     ")
        print ("|         |    ")
        print ("| GAME OVER     ")
        print ("|  YOU LOSE   ")
        print ("|  ")
        print ("|              ")
        print ("|   (**)---   ")


print("Welcome to HANGMAN \nHave Fun =)")
print("You can only get 5 wrong. You will lose your :\n1. Right Leg\n2.Left Leg\n3.Right Arm\n4.Left Arm\n5.YOUR HEAD... YOUR DEAD")
print("")

time.sleep(2)

words = "ferret".split()
word = random.choice(words)

w = 0
g = 0
count = 0

correct = []
wrong = []
for i in range(len(word)):
    correct.append('#')
wrdsplit = [char for char in "ferret"]

while count < 5 :
    pics()
    print("")
    print("CORRECT LETTERS : ",''.join(correct))
    print("WRONG LETTERS : ",wrong)
    print("")
    print("Please input a letter")
    guess = input("> ")
    loop = wrdsplit.count(guess)
    if guess in wrdsplit:
        for count in range(loop):
            x = wrdsplit.index(guess)
            correct[x] = guess
            wrdsplit[x] = '&'
        g = g + 1
        if "".join(correct) == word:
            print("Well done... You guessed the word in", g ,"guesses and you got", w , "wrong")
            print("YOU LIVED")
            break
    elif guess not in wrdsplit:
        wrong.append(guess)
        w = w + 1
        g = g + 1
        count = count +1

pics()
print("The correct word was : ",word)

Answer 2

我在这里看到的唯一错误（基于您之前的代码）是：

if guess in wrdsplit:
    for count in range(len(wrdsplit)):
        x = wrdsplit.index(guess)
        wrdsplit[x] = '&'
        correct[x] = guess
    g = g + 1
    wrdsplit[x] = '&' # x is out of scope
    if "".join(correct) == word:
        print("Well done... You guessed the word in", g ,"guesses and you got", w , "wrong")
        print("YOU LIVED")
        break

现在，如果你继续在这里寻找f重试，它将无效，因为你已经将'f'改为'＆amp;'所以你会得到f不在列表中的错误。你刚陷入一个讨厌的小虫子周期。

您应该考虑使用词典代替。

Answer 3

尝试使用此代码查看它是否有效并执行您想要的操作

# Get this from a real place and not hardcoded
wrdsplit = list("ferret")
correct = ["-"]*len(wrdsplit)  # We fill a string with "-" chars
# Ask the user for a letter
guess = input('> ')
if guess in wrdsplit:
    for i, char in enumerate(wrdsplit):
        if char == guess:
            correct[i-1] = guess
    # Calculate the number of guesses
    if "-" in correct:
        g = len(set(correct)) - 1
    else:
        g = len(set(correct))
# Print the right word
print("".join(correct))

该集合生成一个没有重复的数组来计算他做了多少猜测，如果＆＃34; - ＆＃34;被发现，一个被减去，因为那个角色不是猜测。

ValueError：'f'不在列表中但显然是

3 个答案: