string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%94%A8%E7%94%B5%E9%87%8F%E7%AB%9E%E4%BB%B7%E4%BA%A4%E6%98%93 => Failed to connect to 101.89.159.206 port 38087: Connection refused"
用电量竞价交易
