string(337) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%83%E5%A4%A9%E6%97%A0%E7%90%86%E7%94%B1%E9%80%80%E8%B4%A7%E5%8C%85%E9%82%AE%E7%9A%84%E8%BF%90%E8%B4%B9%E8%B0%81%E6%89%BF%E6%8B%85%E5%91%A2%E6%80%8E%E4%B9%88%E7%AE%97 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
七天无理由退货包邮的运费谁承担呢怎么算
