string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%BE%A4%E5%8F%91%E5%8D%96%E6%88%BF%E5%AE%A3%E4%BC%A0%E7%9A%84%E7%9F%AD%E4%BF%A1 => Failed to connect to 14.18.117.71 port 38041: Connection refused"
群发卖房宣传的短信
