string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BF%AB%E6%89%8B%E5%B0%8F%E5%BA%97%E5%BD%93%E5%89%8D%E7%8A%B6%E6%80%81%E4%B8%8D%E6%94%AF%E6%8C%81%E4%BF%AE%E6%94%B9%E5%95%86%E5%93%81%E7%B1%BB%E5%88%AB => Failed to connect to 101.89.143.195 port 38205: Connection refused"
快手小店当前状态不支持修改商品类别
