string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%B2%B3%E5%8D%97%E4%B8%A4%E6%89%80211%E5%A4%A7%E5%AD%A6%E6%8E%92%E5%90%8D%E5%89%8D%E5%8D%81 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
河南两所211大学排名前十
