string(242) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=word%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%E9%A1%B5%E8%84%9A%E4%B8%8D%E5%90%8C => Failed to connect to 14.18.117.71 port 38164: Connection refused"
word如何设置页脚不同
