25 lines
633 B
JavaScript
25 lines
633 B
JavaScript
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let app = require('express')()
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let http = require('http').Server(app)
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//let fs = require('fs')
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let io = require('socket.io')(http)
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var i = 0 //当前在线人
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app.get('/', (req, res) => {
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// res.send('这是后端服务')
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//方法一、
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// fs.readFile('./public/index.html', (err, data) => {
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// if (err) throw err
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// res.end(data)
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// })
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//方法二、
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res.sendFile(__dirname + './public/index.html')
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})
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io.on('connection', () => {
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i++
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console.log('有' + i + '个用户连接了');
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})
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http.listen(3000, '127.0.0.1', () => {
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console.log('app start port 3000')
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})
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