string(283) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%BA%AB%E8%BE%B9%E7%9A%84%E6%9C%8B%E5%8F%8B%E9%83%BD%E7%A6%BB%E5%BC%80%E4%BA%86%E8%BF%99%E5%BA%A7%E5%9F%8E%E5%B8%82 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
身边的朋友都离开了这座城市
