简单疑问词提取，依据疑问词词根提取
# -*- coding: utf-8 -*-
import sys
# 用法示例：python3 filter_kw.py 关键词.txt 结果.txt
# 获取命令行参数，分别获取关键词文件和结果文件名
kwfile, retfile = sys.argv[-2:]
filters = {'难道','岂','居然','竟然','究竟','简直','难怪','反倒','何尝','何必','吗','呢','吧','啊','怎','么','如何','什么','谁','何','哪','几时','多少','那','多久','嘛',}
ret = open(retfile, mode='w', encoding='utf-8')
with open(kwfile, encoding='utf-8') as f:
for line in f:
for w in filters:
if w in line:
ret.write(line)
break
ret.flush()
ret.close()
