string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E8%A7%86%E9%A2%91%E9%87%8C%E5%A6%82%E4%BD%95%E6%8A%8A%E8%85%BF%E6%8B%89%E9%95%BF%E5%91%A2 => Failed to connect to 14.18.117.71 port 38133: Connection refused"
视频里如何把腿拉长呢
