string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%80%83%E8%AF%95%E5%BF%83%E6%80%81%E5%B7%AE%E6%80%8E%E4%B9%88%E8%B0%83%E6%95%B4 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
考试心态差怎么调整
