string(248) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%AE%A4%E5%86%85%E7%A9%BA%E8%B0%83%E4%B8%80%E8%88%AC%E5%A4%9A%E5%B0%91%E5%BA%A6 => Failed to connect to 101.91.112.32 port 38162: Connection refused"
室内空调一般多少度
