string(256) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BA%95%E9%83%A8%E7%BC%A9%E9%87%8F%E4%B8%8B%E8%B7%8C%E6%98%AF%E5%A5%BD%E4%BA%8B%E5%90%97 => Failed to connect to 14.18.117.71 port 38069: Connection refused"
底部缩量下跌是好事吗
