string(285) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%81%9A%E7%BD%91%E7%BB%9C%E6%8E%A8%E5%B9%BF%E7%9A%84%E5%A4%9A%E5%B0%91%E9%92%B1%E4%B8%80%E4%B8%AA%E6%9C%88%E5%95%8A => Failed to connect to 101.89.117.144 port 38005: Connection refused"
做网络推广的多少钱一个月啊
