string(267) "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%E6%AF%94%E8%BE%83 => Failed to connect to 101.89.166.210 port 38089: Connection refused"
实体店和网上的价格比较
