python - 在 Python 中使用字典替换列表中的字符串

Question

如何使用字典替换列表中的字符串？

我有

text = ["h#**o+","+&&&orld"]

replacement = {"#":"e","*":"l","+":"w","&":""}

我要:

correct = ["Hellow 
           World"]

我试过了:

def correct(text,replacement):
    for word, replacement in replacement.items():
        text = text.replace(word, replacement)

但是:AttributeError: 'list' 对象没有属性 'replace'

Answer 1

除了你的 correct 函数似乎只想更正一个 str (例如 "h#**o+" => "hellow")，而您的变量 text 当前是 list 或 str。因此，如果你想获得 "hellow world"，你需要多次调用 correct 以获得更正单词的列表，然后你可以将其加入一个字符串。

试试这个可运行的例子!

#!/usr/bin/env python

words = ["h#**o+","+&&&orld"]
replacement = {"#":"e","*":"l","+":"w","&":""}

def correct(text,replacement):
    for word, replacement in replacement.items():
        text = text.replace(word, replacement)
    return text

def correct_multiple(words, replacement):
    new_words = [correct(word, replacement) for word in words] # get a list of results
    combined_str = " ".join(new_words) # join the list into a string
    return combined_str

output = correct_multiple(words, replacement)
print(f"{output=}")

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