string(294) "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%E5%92%8C%E5%AE%A3%E4%BC%A0%E7%9A%84%E6%89%93%E6%B3%95%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E4%B8%80%E6%A0%B7 => Failed to connect to 125.88.227.171 port 38062: Connection refused"
推广和宣传的打法有什么不一样
