string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%88%86%E8%A7%A3%E6%9C%BA%E7%AD%89%E7%BA%A7%E8%B6%8A%E9%AB%98%E4%BC%9A%E6%80%8E%E4%B9%88%E6%A0%B7 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
分解机等级越高会怎么样
