玉怎么能分辨出来真假网!
string(256) "get document error:https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%8E%89%E6%80%8E%E4%B9%88%E8%83%BD%E5%88%86%E8%BE%A8%E5%87%BA%E6%9D%A5%E7%9C%9F%E5%81%87 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
玉怎么能分辨出来真假网!