var app = require('express')()//链式语法
var http = require('http').Server(app)
var io = require('socket.io')(http);
//2。express 路由
app.get('/', (req, res)=> {
res.send('<h1>hello world list !</h1>')
})
io.on('connection', function(socket) {
console.log('a user connected');
//socket = client
socket.on('disconnect', function() {
console.log('user disconnected');
});
//绑定了一个chat message事件 ,在前端触发
socket.on('chat message', function(msg) {
io.emit('chat message', msg);
});
});
//1.创建一个监听端口,开启服务器
http.listen(9993, ()=> {
console.log('listening 9993')
}) 网友回复
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