string(239) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%9B%E5%B7%9D%E4%B8%AD%E7%BA%A7%E8%80%83%E8%AF%95%E8%A6%81%E6%B1%82 => Failed to connect to 101.89.120.29 port 38025: Connection refused"
四川中级考试要求
