string(240) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BF%83%E7%8E%87%E7%9B%91%E6%B5%8B%E6%95%B0%E6%8D%AE%E5%88%86%E6%9E%90 => Failed to connect to 101.89.117.144 port 38056: Connection refused"
心率监测数据分析
