string(248) "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%E5%93%AA%E4%B8%AA%E5%9C%A8%E5%89%8D => Failed to connect to 101.91.112.32 port 38221: Connection refused"
推广和宣传哪个在前
