模型： live2d.（官方有很多示例模型，可以供大家学习使用。人物模型在public/Resources目录下）
渲染： pixi.js.
文字转语音可选择使用阿里云TTS或者美团TTS，如使用阿里云TTS：修改APP.tsx中的useGetAudio('aliyun')即可（默认为美团TTS），需要提前准备对应的APPKey和当日有效的Token，在configs/index.ts中配置。
MEITUAN_TTS_TOKEN：美团TTS Token 24小时有效（需要在美团TTS示例页面，点击合成语音，从请求中header中获取token）
如果使用阿里云TTS，由于时间关系，前端直调阿里云TTS Restful接口，因此有跨域问题，需要启动浏览器非安全模式：1.完全关闭当前chrome，2.命令行打开浏览器：open -n /Applications/Google\ Chrome.app/ --args --disable-web-security --user-data-dir=/Users/zhaojunming/WorkSpace/chrome
ALIYUN_TTS_APP_KEY：阿里云TTS Key
ALIYUN_TTS_TOKEN：阿里云TTS Token 24小时有效 (需要在阿里云TTS（需要开通试用）的控制后台获取24小时有效Token)
由于时间紧张，语音识别当前没有使用阿里云ASR的websocket接口，使用的是浏览器的speechRecognitionAPI。
In the project directory, you can run:
Runs the app in the development mode.
Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
You will also see any lint errors in the console.
Launches the test runner in the interactive watch mode.
See the section about running tests for more information.
Builds the app for production to the build folder.
It correctly bundles React in production mode and optimizes the build for the best performance.
The build is minified and the filenames include the hashes.
Your app is ready to be deployed!
See the section about deployment for more information.
Note: this is a one-way operation. Once you eject, you can’t go back!
If you aren’t satisfied with the build tool and configuration choices, you can eject at any time. This command will remove the single build dependency from your project.
Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except eject will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
You don’t have to ever use eject. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
You can learn more in the Create React App documentation.
To learn React, check out the React documentation.