string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AE%9E%E4%BD%93%E5%BA%97%E5%92%8C%E7%BD%91%E4%B8%8A%E7%9A%84%E4%BB%B7%E6%A0%BC%E5%B7%AE%E5%A4%9A%E5%B0%91 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
实体店和网上的价格差多少
