string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BD%BB%E5%B7%A5%E5%93%AA%E4%B8%AA%E5%A4%A7%E5%AD%A6%E6%AF%94%E8%BE%83%E5%A5%BD => Failed to connect to 101.89.159.206 port 38075: Connection refused"
轻工哪个大学比较好
