string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%AF%8F%E6%97%A5%E4%BC%98%E9%B2%9C%E4%B8%8B%E6%9E%B6%E8%B4%A7%E6%BA%90%E6%98%AF%E7%9C%9F%E7%9A%84%E5%90%97 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
每日优鲜下架货源是真的吗
