如何从多行字符串构建单词列表？

def build_word_list_from_multiline_string(multiline_string):
    lines = multiline_string.split('\n')  # 按行分割多行字符串
    word_list = []
    for line in lines:
        words = line.split()  # 使用空格分割每行字符串
        word_list.extend(words)  # 将每行的单词列表合并到总的单词列表中
    return word_list

# 示例用法
multiline_string = """
Hello world!
This is a multiline string.
Let's build a word list from it.
"""
words = build_word_list_from_multiline_string(multiline_string)
print(words)

['Hello', 'world!', 'This', 'is', 'a', 'multiline', 'string.', "Let's", 'build', 'a', 'word', 'list', 'from', 'it.']