string(231) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%96%E5%8D%96%E7%AE%97%E6%98%AF%E7%94%B5%E5%95%86%E5%90%97 => Failed to connect to 101.89.159.206 port 38100: Connection refused"
外卖算是电商吗
