string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%BD%E5%AE%B6%E7%9A%84%E8%8B%B1%E6%96%87%E6%80%8E%E4%B9%88%E5%86%99%E5%91%80 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
国家的英文怎么写呀
