string(274) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9B%B4%E6%92%AD%E8%90%A5%E9%94%80%E5%BD%93%E5%89%8D%E5%AD%98%E5%9C%A8%E5%93%AA%E4%BA%9B%E9%97%AE%E9%A2%98 => Failed to connect to 14.18.117.71 port 38220: Connection refused"
直播营销当前存在哪些问题
