如何按 python 3.x 中的位置替换字符串中的字母

Question

我正在尝试创建一个 'hangman' 游戏。为此，我需要取玩家试图猜测的单词，并将他们尚未猜到的所有字母变成 " _ "

假设我有：

letters_guessed = [q, r, u, a, p]
secret_word = "dragon"

我怎样才能把它变成：_ r a _ _ _？

Answer 1

此处有几种可能的解决方案，其中一种是：

letters_guessed = ["q", "r", "u", "a", "p"]

secret_word = "dragon"

output = ""
for char in secret_word:
    if char in letters_guessed:
        x = char
    else:
        x = "_"
    output += x

print(output)
# Output:  _ra___

之后放在一个函数中：

def hangman(word, guessed):
    output = ""
    for char in word:
        if char in guessed:
            x = char
        else:
            x = "_"
        output += x
    return output

或者，您可以完全使用列表理解：

letters_guessed = ["q", "r", "u", "a", "p"]
secret_word = "dragon"
secret_list = "".join([char if char in letters_guessed else "_" 
                       for char in list(secret_word)])
print(secret_list)

如何按 python 3.x 中的位置替换字符串中的字母

How to replace a letter in string by position in python 3.x

python

string

position

list