string(276) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%BD%B3%E6%98%8E%E6%89%8B%E7%8E%AF%E5%92%8C%E6%89%8B%E8%A1%A8%E5%BF%83%E7%8E%87%E4%B8%8D%E4%B8%80%E6%A0%B7 => Failed to connect to 101.89.143.195 port 38175: Connection refused"
佳明手环和手表心率不一样
