string(262) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=word%E5%9C%A8%E9%A1%B5%E8%84%9A%E4%B8%AD%E8%AE%BE%E7%BD%AE%E9%A1%B5%E7%A0%81%E6%A0%BC%E5%BC%8F => Failed to connect to 125.88.227.171 port 38114: Connection refused"
word在页脚中设置页码格式
