string(233) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=3d%E5%9C%A8%E7%94%B5%E5%BD%B1%E4%B8%AD%E7%9A%84%E8%BF%90%E7%94%A8 => Failed to connect to 101.89.117.144 port 38076: Connection refused"
3d在电影中的运用
