string(238) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BC%80%E7%BD%91%E5%90%A7%E5%AE%B9%E6%98%93%E4%BA%8F%E6%9C%AC%E5%90%97 => Failed to connect to 14.18.117.71 port 38164: Connection refused"
开网吧容易亏本吗
