string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A6%82%E4%BD%95%E8%B7%9F%E4%BA%BA%E8%A6%81%E8%B4%A6%E6%AF%94%E8%BE%83%E5%A7%94%E5%A9%89 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
如何跟人要账比较委婉
