string(258) "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%B9%B0%E6%AF%94%E7%BD%91%E4%B8%8A%E8%B4%B5%E5%A4%9A%E5%B0%91 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
实体店买比网上贵多少
