string(274) "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%E9%87%87%E7%94%A8%E9%A1%B5%E8%84%9A%E6%96%B9%E5%BC%8F%E8%AE%BE%E7%BD%AE%E9%A1%B5%E7%A0%81 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
如何采用页脚方式设置页码
