string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%89%AA%E6%8E%89%E8%A7%86%E9%A2%91%E7%9A%84%E4%B8%80%E9%83%A8%E5%88%86 => Failed to connect to 101.89.117.144 port 38005: Connection refused"
剪掉视频的一部分
