string(294) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8B%BC%E5%A4%9A%E5%A4%9A%E5%85%88%E7%94%A8%E5%90%8E%E4%BB%98%E5%8D%96%E5%AE%B6%E5%8F%AF%E4%BB%A5%E9%80%80%E6%AC%BE%E5%90%97 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
拼多多先用后付卖家可以退款吗
