python - 如何仅打印出包含某些字母的列表的元素？

Question

我正在做一个项目，我想写一个代码，它会找到句子中只包含特定字母的单词，然后返回它们(打印出来)。

sentence = "I am asking a question on Stack Overflow"
lst = []

# this gives me a list of all words in a sentence
change = sentence.split()

# NOTE: I know this isn't correct syntax, but that's basically what I want to do.
lst.append(only words containing "a")
print(lst)

现在我正在努力的部分是，我如何仅附加包含字母“a”的单词？

Answer 1

你可以这样做:

words = sentence.split()
lst = [word for word in words if 'a' in word]
print(lst)
# ['am', 'asking', 'a', 'Stack']