string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E7%BD%91%E8%B4%AD%E4%B8%8E%E5%AE%9E%E4%BD%93%E5%BA%97%E7%9A%84%E4%BB%B7%E6%A0%BC%E7%9B%B8%E5%B7%AE%E9%82%A3%E4%B9%88%E5%A4%9A => Failed to connect to 101.89.143.195 port 38109: Connection refused"
为什么网购与实体店的价格相差那么多
