string(261) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=doc%E9%A1%B5%E8%84%9A%E6%80%8E%E4%B9%88%E8%AE%BE%E7%BD%AE%E8%BF%9E%E7%BB%AD%E9%A1%B5%E7%A0%81 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
doc页脚怎么设置连续页码
