\node-websocket是node搭建后端与前端利用websocket通信
socket.io 是node后端与前端利用socket.io进行通信
python_node是node与python利用socket.io进行双向通信
python socketIO库
[The Socket.IO Client — python-socketio documentation](https://python-socketio.readthedocs.io/en/latest/client.html)Node socketIO库
[socketio/socket.io: Realtime application framework (Node.JS server) (github.com)](https://github.com/socketio/socket.io)