string(319) "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%8F%91%E8%B5%B7%E6%8B%BC%E5%8D%95%E5%90%8E%E6%80%8E%E6%A0%B7%E5%8F%96%E6%B6%88%E8%AE%A2%E5%8D%95%E5%B9%B6%E9%80%80%E6%AC%BE => Failed to connect to 14.116.215.7 port 38225: Connection refused"
拼多多发起拼单后怎样取消订单并退款
