string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=word%E9%A1%B5%E8%84%9A%E8%AE%BE%E7%BD%AE%E9%A1%B5%E7%A0%81%E5%92%8C%E6%80%BB%E9%A1%B5%E6%95%B0 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
word页脚设置页码和总页数
