string(258) "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%E7%9A%84%E5%88%92%E5%88%86%E4%BE%9D%E6%8D%AE%E6%98%AF => Failed to connect to 101.89.159.206 port 38100: Connection refused"
六大茶类的划分依据是
