string(258) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%B7%9F%E5%8C%85%E5%8C%85%E8%8F%9C%E5%BE%88%E5%83%8F%E7%94%9F%E5%90%83%E7%9A%84%E8%8F%9C => Failed to connect to 101.89.166.210 port 38089: Connection refused"
跟包包菜很像生吃的菜
