string(277) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%A4%96%E5%9B%BD%E7%9A%84%E7%9F%AD%E8%A7%86%E9%A2%91app%E5%9B%BD%E5%86%85%E7%9A%84%E8%83%BD%E7%94%A8%E5%90%97 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
外国的短视频app国内的能用吗
