string(319) "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%E4%B8%8A%E7%9A%84%E5%95%86%E5%93%81%E4%BB%B7%E6%A0%BC%E8%A6%81%E6%AF%94%E5%AE%9E%E4%BD%93%E5%BA%97%E7%9A%84%E4%BD%8E => Failed to connect to 218.78.59.96 port 38042: Connection refused"
为什么网上的商品价格要比实体店的低
