string(274) "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%E6%94%B6%E5%88%B0%E8%B4%A7%E4%BB%A5%E5%90%8E%E6%89%8D%E8%83%BD%E6%94%B6%E5%88%B0%E9%92%B1 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
闲鱼收到货以后才能收到钱
