string(310) "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%9A%84%E7%A9%BA%E8%B0%83%E6%B8%A9%E5%BA%A6%E5%BA%94%E8%AF%A5%E8%AE%BE%E7%BD%AE%E5%A4%9A%E5%B0%91%E5%90%88%E9%80%82%E5%91%A2 => Failed to connect to 61.171.74.35 port 38027: Connection refused"
室内的空调温度应该设置多少合适呢
