string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A6%81%E6%80%8E%E4%B9%88%E6%8E%A8%E5%B9%BF%E6%99%AE%E9%80%9A => Failed to connect to 101.89.143.195 port 38175: Connection refused"
要怎么推广普通
