用Express和Socket.io实现简单服务器的蛋白石实现 演示 跑 安装 git clone https://github.com/sebyx07/opal-express-socketio.git opal-server cd opal-server bundle install && yarn install # install deps 更新index.html var socket = io . connect ( 'https://opal-realtime-socket-express.herokuapp.com' , { transports : [ 'websocke