socket 入门

var express = require('express')
var app = express()
var server = require('http').Server(app)
var io = require('socket.io')(server, {
    pingInterval: 1000
})
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io.on('connection', function(socket) {
    socket.on('content', function (data) {
        console.log(data)
        socket.broadcast.emit('news', {hello: data})
    })
})
app.get('/', function(req, res){
    res.sendFile(__dirname+'/index.html')
})
server.listen(18080, (){
    console.log('服务器在18080端口启动');
});

const socket = io.connect('http://192.168.1.177:18080')
socket.on('news', function (data) {
            console.log(data)
        })
        socket.emit('content', {content: value})