string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%85%AD%E5%A4%A7%E8%8C%B6%E7%B1%BB%E6%80%8E%E4%B9%88%E5%88%92%E5%88%86%E5%87%BA%E6%9D%A5%E7%9A%84%E5%91%A2 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
六大茶类怎么划分出来的呢
