string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%97%AA%E7%85%A7%E7%9C%8B%E5%AE%8C%E4%B9%8B%E5%90%8E%E6%80%8E%E4%B9%88%E6%81%A2%E5%A4%8D => Failed to connect to 14.18.117.71 port 38220: Connection refused"
闪照看完之后怎么恢复
