string(258) "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%E8%AE%BE%E7%BD%AE%E9%A1%B5%E8%84%9A%E8%B5%B7%E5%A7%8B%E6%95%B0%E5%80%BC => Failed to connect to 101.89.159.206 port 38087: Connection refused"
如何设置页脚起始数值
