string(310) "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%A6%82%E4%BD%95%E5%8F%96%E6%B6%88%E5%8F%91%E8%B5%B7%E7%9A%84%E6%8B%BC%E5%8D%95%E5%B9%B6%E9%80%80%E6%AC%BE%E5%91%A2 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
拼多多如何取消发起的拼单并退款呢
