利用MQTT连接华为IOT平台，进行数据上报与下发

一、查看接入信息

https://cdn.jsdelivr.net/gh/weixuna/MyPic/24/3/image_6721540a5fccd555db65a98741e70716.png

二、创建产品

https://cdn.jsdelivr.net/gh/weixuna/MyPic/24/3/image_ba9eab465891adb5fd677dcccd8394f2.png

三、注册设备

https://cdn.jsdelivr.net/gh/weixuna/MyPic/24/3/image_c6b568b4ff35a2d66719c5489aeb8418.png