string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E9%97%B2%E9%B1%BC%E4%B8%8A%E4%BA%A4%E6%98%93%E6%9C%89%E9%A3%8E%E9%99%A9%E5%90%97 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
闲鱼上交易有风险吗
