string(265) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%80%8E%E4%B9%88%E6%8E%A8%E5%B9%BF%E8%87%AA%E5%B7%B1%E7%9A%84%E4%BC%98%E6%83%A0%E5%88%B8%E7%BE%A4 => Failed to connect to 14.116.215.7 port 38225: Connection refused"
怎么推广自己的优惠券群
