string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%90%83%E4%BA%86%E4%B8%89%E5%A4%A9%E8%BA%AF%E4%BD%93%E7%97%87%E7%8A%B6%E6%B6%88%E5%A4%B1%E4%BA%86 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
吃了三天躯体症状消失了
