课程地址：零声学院 WebRTC入门与提高 https://ke.qq.com/course/435382?tuin=137bb271
技术支持QQ群：782508536
下载和安装
https://github.com/fengli12321/Socket.io-FLSocketIM-Server
执行报错：
Error: Cannot find module 'express'
npm install redis
Error: Cannot find module 'body-parser'
npm install body-parser
Error: Cannot find module 'express-session'
npm install express-session
Error: Cannot find module 'socket.io'
npm install socket.io
Error: Cannot find module 'mongoose'
npm install mongoose
Error: Cannot find module 'formidable'
npm install formidable
npm install timeout-callback
/root/FLSocketIM/Socket.io-FLSocketIM-Server/node_modules/_timeout-callback@2.0.2@timeout-callback/index.js:22
options = { ...defaultOptions, ...options };
^^^
SyntaxError: Unexpected token ...
npm install mocha
