string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BD%91%E4%B8%8A%E5%81%9A%E5%95%A5%E6%9C%80%E8%B5%9A%E9%92%B1%E5%91%A2 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
网上做啥最赚钱呢
