string(249) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BC%9A%E5%91%98%E4%BF%83%E9%94%80%E7%AD%96%E7%95%A5%E6%80%8E%E4%B9%88%E5%86%99 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
会员促销策略怎么写
