This course will introduce the recording interface, audio interface, and iFlytek voice recognition interface in the WeChat applet. Among them, the "personal voice assistant function" is realized through the backend built by Node.js to connect WeChat applet and iFlytek Voice. 1. Course introduction 2. Environment construction 3. WeChat mini program page construction 4. Node.js background interface construction 5. WeChat applet calls Node.js interface to realize voice interaction