string(247) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E6%8A%96%E9%9F%B3%E8%BF%9D%E8%A7%84%E4%BA%86%E4%BC%9A%E9%99%90%E6%B5%81%E5%90%97 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
抖音违规了会限流吗
