string(256) "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%E4%BB%B7%E6%A0%BC%E5%92%8C%E7%BD%91%E4%B8%8A%E4%BB%B7%E6%A0%BC => Failed to connect to 14.18.117.71 port 38069: Connection refused"
实体店价格和网上价格
