string(309) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%92%B8%E9%B1%BC%E5%8D%96%E4%B8%9C%E8%A5%BF%E6%98%AF%E5%85%88%E4%BB%98%E6%AC%BE%E8%BF%98%E6%98%AF%E5%88%B0%E8%B4%A7%E4%BB%98%E6%AC%BE%E5%A5%BD => Failed to connect to 14.18.46.51 port 38206: Connection refused"
咸鱼卖东西是先付款还是到货付款好
