string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E3%80%8A%E9%B2%81%E8%BF%85%E5%B0%8F%E8%AF%B4%E9%87%8C%E7%9A%84%E4%BA%BA%E7%89%A9%E3%80%8B => Failed to connect to 14.18.117.71 port 38069: Connection refused"
《鲁迅小说里的人物》
