string(374) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%94%AF%E6%8C%81%E4%B8%83%E5%A4%A9%E6%97%A0%E7%90%86%E7%94%B1%E9%80%80%E8%B4%A7%E5%92%8C%E4%B8%8D%E6%94%AF%E6%8C%81%E4%B8%83%E5%A4%A9%E6%97%A0%E7%90%86%E7%94%B1%E9%80%80%E8%B4%A7%E7%9A%84%E5%8C%BA%E5%88%AB => Failed to connect to 101.91.112.32 port 38162: Connection refused"
支持七天无理由退货和不支持七天无理由退货的区别
