string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%A1%B5%E8%84%9A%E7%9A%84%E9%A1%B5%E7%A0%81%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%E4%B8%8D%E5%90%8C%E6%95%B0%E5%AD%97 => Failed to connect to 101.89.117.144 port 38208: Connection refused"
页脚的页码如何设置不同数字
