string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%8B%E8%B7%8C%E7%BC%A9%E9%87%8F%E5%8D%81%E5%AD%97%E6%98%9F%E4%BD%8E%E6%8D%A2%E6%89%8B%E7%8E%87 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
下跌缩量十字星低换手率
