string(373) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E4%B8%BA%E4%BB%80%E4%B9%88%E5%AE%B6%E9%87%8C%E4%B8%8D%E5%BB%BA%E8%AE%AE%E5%AE%89%E8%A3%85%E5%87%80%E6%B0%B4%E5%99%A8%E5%87%80%E5%8C%96%E5%8A%A0%E7%83%AD%E4%B8%80%E4%BD%93%E7%9A%84%E5%87%80%E6%B0%B4%E5%99%A8 => Failed to connect to 61.171.74.35 port 38041: Connection refused"
为什么家里不建议安装净水器净化加热一体的净水器
