string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%A6%BB%E4%B8%AD%E7%BA%A7%E8%80%83%E8%AF%95%E8%BF%98%E6%9C%89%E5%A4%9A%E5%B0%91%E5%A4%A9 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
离中级考试还有多少天
