string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8E%A8%E5%B9%BF%E4%BC%98%E6%83%A0%E5%88%B8%E7%8A%AF%E6%B3%95%E5%90%97 => Failed to connect to 101.89.117.144 port 38022: Connection refused"
推广优惠券犯法吗
