string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E7%9F%AD%E8%A7%86%E9%A2%91%E8%BF%98%E8%83%BD%E6%8C%A3%E9%92%B1%E5%90%97%E7%9F%A5%E4%B9%8E => Failed to connect to 14.18.117.71 port 38069: Connection refused"
短视频还能挣钱吗知乎
