node的3个核心模块

fs读取文件

path将路径合并

 server  静态服务器

const fs = require('fs')

const path = require('path')

fs.readFile('test.txt', (err, data) => {

  if (err) {

    console.log(err)

  }

  console.log(data.toString())

})

let domain = 'http://www.baidu.com'

let id = '22'

let result = path.join(domain, id)

console.log(result)

 

const http = require('http')

const server = http.createServer((req, res) => {

  res.end('hello world')

})

server.listen(3000, () => {

  console.log('server is running')

})