string(235) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=2021%E4%B8%8A%E6%B5%B7%E4%BA%8C%E5%BB%BA%E5%8F%8A%E6%A0%BC%E7%BA%BF => Failed to connect to 101.89.159.206 port 38100: Connection refused"
2021上海二建及格线
