Question

所以基本上就是我拥有的东西;

print "***Welcome to Code Breaker***"

print "\n"

rounds = raw_input("How many rounds do you want to play (has to be a positive integer)? ")

while rounds.isdigit() == False or int(rounds) < 1:    
    rounds = raw_input("ERROR:How many turns do you want to play (has to be a positve integer)? ")

print "\n"

i = 0

while i < int(rounds):
    i = i + 1
    for i2 in range(2):
        if i2 == 0:
            player = 1
            breaker = 2
        else:
            player = 2
            breaker = 1

    print "Round" + str(i) + ":***Player " + str(player) + "'s turn to setup the game.***"

    print "Player " + str(breaker) + " look away PLEASE!"

    secret = raw_input("Type in the secret word, QUICKLY? ")

    while secret.isalpha() == False:
        secret = raw_input("ERROR: Type in the secret word (has to be letters): ")

    secret = secret.lower()
    print "\n"*100


    numberOfGuess = raw_input("How many guesses will you allow?(has to be a positive integer) ")

    while numberOfGuess.isdigit() == False or int(numberOfGuess) < 1:
        numberOfGuess = raw_input("ERROR:How many guesses will you allow? (has to be a positive integer) ")

    def maskWord(state, word, guess):
        state = list(state)
        for i in range(len(word)):
            if word[i] == guess:
                state[i] = guess
        return "".join(state)


    word = secret
    state = "*" * len(word)
    tries = 0
    print "Secret Word = " + state
    play = True

    while play:
        if tries == int(numberOfGuess): 
            print "Fail...";
            break
            play = False
        guess = raw_input("Guess a letter (a-z)? ")

        while guess.isalpha() == False or len(guess)!= 1:
            guess = raw_input("ERROR: Guess a letter (a-z)? ")

        guess = guess.lower()
        tries +=1
        state = maskWord(state, word, guess)
        print state
        if maskWord(state, word, guess) == word:  
            print "WIN, WIN!!"; 
            play = False


    print "\n" * 100

问题：在猜测代码部分我想设置它，因为用户不能两次猜出相同的字母。我知道你必须使用一个空列表并使用.append函数来存储数据。但是我已经尝试过，并且以许多不同的方式它似乎没有用。我不知道我在哪里做错了，如果有人能回答这个问题就会很棒。我需要知道它会是什么样的，我应该把它放在我的代码中。谢谢！

Answer 1

我没有阅读所有代码但是看着你的问题，我认为你正在寻找类似的东西：

l = []

#build list

char = 'a'

if char in l:
    print('error')
else:
    l.append(char)

Answer 2

通常使用一套来跟踪这些事情。

used_letters = set()  # a new empty set
# ...
if guess in used_letters:  # test presence
  print "This letter has been used already!"
else:
  used_letters.add(guess) # remember as used

您可以改用list()和.append(guess)。使用列表，效率较低，但在您的情况下，效率低下是完全不可检测的。

使用set的目的是传达不应存在重复字母的想法。（你知道，程序阅读的次数比写的要多得多。）

Python - 猜测游戏，确保用户不要输入两次相同的字母

2 个答案: