string(234) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E7%BE%8E%E5%9B%BD%E5%85%AC%E5%B8%83ufo => Failed to connect to 101.89.159.206 port 38100: Connection refused"
为什么美国公布ufo
