string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%8D%96%E5%AE%B6%E6%98%AF%E6%8C%87%E5%95%86%E5%AE%B6%E5%90%97 => Failed to connect to 101.89.143.195 port 38205: Connection refused"
卖家是指商家吗
