string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%80%E5%BB%BA%E6%9C%BA%E7%94%B5%E5%88%98%E5%B9%B3%E7%8E%89%E6%8A%BC%E9%A2%98 => Failed to connect to 101.89.143.195 port 38109: Connection refused"
一建机电刘平玉押题
