string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E9%80%A0%E5%92%8C%E4%BA%8C%E9%80%A0%E5%93%AA%E4%B8%AA%E7%AD%89%E7%BA%A7%E9%AB%98 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
一造和二造哪个等级高
