string(265) "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%E8%8F%9C%E5%B7%AE%E4%B8%8D%E5%A4%9A%E7%9A%84%E8%8F%9C%E6%9C%89%E5%93%AA%E4%BA%9B => Failed to connect to 14.18.117.71 port 38164: Connection refused"
跟包菜差不多的菜有哪些
