string(231) "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%E5%88%92%E5%88%86%E8%A1%A8 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
六大茶类划分表
