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%E9%97%AE%E9%A2%98%E5%92%8B%E8%A7%A3%E5%86%B3 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
考试心态问题咋解决
