string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%9B%BD%E9%99%85%E6%B2%B9%E4%BB%B7%E4%B8%BA%E5%95%A5%E4%B8%8B%E9%99%8D%E9%82%A3%E4%B9%88%E5%A4%9A%E5%91%A2 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
国际油价为啥下降那么多呢
