string(303) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%B5%E6%A2%AF%E7%9B%91%E6%8E%A7%E5%99%A8%E5%8F%AF%E4%BB%A5%E5%88%A0%E9%99%A4%E4%B8%80%E4%B8%AA%E6%97%B6%E9%97%B4%E6%AE%B5%E4%B9%88 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
电梯监控器可以删除一个时间段么
