输入一段英文以.结尾,每个单词一行输出,统计单词个数,可以多段输出
def Filter(line): import re res = re.findall('[^\x20\\.\\,\\?\\!]+',line) return res >>> content = 'This is a book.' >>> print('\n'.join(Filter(content))) This is a book >>> len(Filter(content)) 4